/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/safe031_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 00:42:00,419 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 00:42:00,422 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 00:42:00,475 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-29 00:42:00,511 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 00:42:00,514 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 00:42:00,516 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 00:42:00,519 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 00:42:00,523 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 00:42:00,524 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 00:42:00,534 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 00:42:00,537 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 00:42:00,544 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 00:42:00,546 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 00:42:00,548 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 00:42:00,550 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 00:42:00,554 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 00:42:00,568 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 00:42:00,569 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 00:42:00,570 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 00:42:00,572 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 00:42:00,628 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 00:42:00,628 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 00:42:00,634 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 00:42:00,635 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 00:42:00,635 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 00:42:00,635 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 00:42:00,635 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 00:42:00,636 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 00:42:00,636 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 00:42:00,636 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 00:42:00,637 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 00:42:00,638 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 00:42:00,638 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 00:42:00,638 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 00:42:00,639 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 00:42:00,639 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 00:42:00,639 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 00:42:00,639 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 00:42:00,639 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 00:42:00,640 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 00:42:00,640 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 00:42:00,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:42:00,640 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 00:42:00,641 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 00:42:00,641 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 00:42:00,641 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 00:42:00,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 00:42:00,641 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 00:42:00,642 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 00:42:00,642 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 00:42:00,642 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 00:42:01,043 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 00:42:01,085 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 00:42:01,088 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 00:42:01,090 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 00:42:01,091 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 00:42:01,092 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe031_tso.opt.i [2021-04-29 00:42:01,192 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68cae00bf/f8d8d34bf1a144a0815ca93dc07dd101/FLAG769ba2db3 [2021-04-29 00:42:01,990 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 00:42:01,993 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe031_tso.opt.i [2021-04-29 00:42:02,017 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68cae00bf/f8d8d34bf1a144a0815ca93dc07dd101/FLAG769ba2db3 [2021-04-29 00:42:02,192 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68cae00bf/f8d8d34bf1a144a0815ca93dc07dd101 [2021-04-29 00:42:02,199 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 00:42:02,241 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 00:42:02,245 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 00:42:02,245 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 00:42:02,249 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 00:42:02,250 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:42:02" (1/1) ... [2021-04-29 00:42:02,252 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1986bec5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:42:02, skipping insertion in model container [2021-04-29 00:42:02,252 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:42:02" (1/1) ... [2021-04-29 00:42:02,261 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 00:42:02,305 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 00:42:02,477 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/safe031_tso.opt.i[949,962] [2021-04-29 00:42:02,759 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:42:02,774 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 00:42:02,796 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/safe031_tso.opt.i[949,962] [2021-04-29 00:42:02,849 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:42:03,037 INFO L208 MainTranslator]: Completed translation [2021-04-29 00:42:03,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:42:03 WrapperNode [2021-04-29 00:42:03,040 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 00:42:03,042 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 00:42:03,043 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 00:42:03,043 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 00:42:03,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:42:03" (1/1) ... [2021-04-29 00:42:03,086 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:42:03" (1/1) ... [2021-04-29 00:42:03,124 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 00:42:03,126 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 00:42:03,126 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 00:42:03,126 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 00:42:03,137 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:42:03" (1/1) ... [2021-04-29 00:42:03,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:42:03" (1/1) ... [2021-04-29 00:42:03,156 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:42:03" (1/1) ... [2021-04-29 00:42:03,156 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:42:03" (1/1) ... [2021-04-29 00:42:03,167 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:42:03" (1/1) ... [2021-04-29 00:42:03,175 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:42:03" (1/1) ... [2021-04-29 00:42:03,177 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:42:03" (1/1) ... [2021-04-29 00:42:03,186 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 00:42:03,187 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 00:42:03,187 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 00:42:03,187 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 00:42:03,191 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:42:03" (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 00:42:03,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 00:42:03,321 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-29 00:42:03,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 00:42:03,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 00:42:03,323 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-29 00:42:03,323 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-29 00:42:03,324 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-29 00:42:03,324 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-29 00:42:03,324 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-29 00:42:03,325 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-29 00:42:03,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-29 00:42:03,325 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-29 00:42:03,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 00:42:03,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 00:42:03,327 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 00:42:03,904 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 00:42:03,904 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-29 00:42:03,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:42:03 BoogieIcfgContainer [2021-04-29 00:42:03,908 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 00:42:03,910 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 00:42:03,911 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 00:42:03,915 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 00:42:03,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 12:42:02" (1/3) ... [2021-04-29 00:42:03,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39fdba2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:42:03, skipping insertion in model container [2021-04-29 00:42:03,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:42:03" (2/3) ... [2021-04-29 00:42:03,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39fdba2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:42:03, skipping insertion in model container [2021-04-29 00:42:03,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:42:03" (3/3) ... [2021-04-29 00:42:03,920 INFO L111 eAbstractionObserver]: Analyzing ICFG safe031_tso.opt.i [2021-04-29 00:42:03,928 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 00:42:03,935 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 00:42:03,937 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 00:42:04,002 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,003 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,003 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,003 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,003 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,004 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,004 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,004 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,005 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,005 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,006 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,006 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,007 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,007 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,008 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,008 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,008 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,008 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,009 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,009 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,009 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,010 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,010 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,011 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,012 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,012 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,012 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,013 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,015 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,016 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,016 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,016 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,017 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,018 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,018 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,019 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,021 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,022 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,022 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,022 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,029 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,030 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,030 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,030 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,042 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,042 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,043 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,043 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:42:04,046 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 00:42:04,072 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-04-29 00:42:04,113 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 00:42:04,113 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 00:42:04,113 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 00:42:04,113 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 00:42:04,114 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 00:42:04,114 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 00:42:04,114 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 00:42:04,114 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 00:42:04,135 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 74 transitions, 163 flow [2021-04-29 00:42:04,194 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2021-04-29 00:42:04,195 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:42:04,199 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 49 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-04-29 00:42:04,200 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 74 transitions, 163 flow [2021-04-29 00:42:04,205 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 59 transitions, 127 flow [2021-04-29 00:42:04,207 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:42:04,225 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 59 transitions, 127 flow [2021-04-29 00:42:04,230 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 59 transitions, 127 flow [2021-04-29 00:42:04,231 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 59 transitions, 127 flow [2021-04-29 00:42:04,251 INFO L129 PetriNetUnfolder]: 1/59 cut-off events. [2021-04-29 00:42:04,251 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:42:04,252 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 47 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-04-29 00:42:04,255 INFO L146 LiptonReduction]: Number of co-enabled transitions 864 [2021-04-29 00:42:08,283 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:42:08,456 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:42:08,630 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:42:08,801 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:42:09,499 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:42:09,990 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:42:10,217 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:42:10,418 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:42:10,613 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:42:10,786 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:42:10,944 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:42:11,121 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:42:11,302 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:42:11,847 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-04-29 00:42:11,951 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-04-29 00:42:12,157 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-04-29 00:42:13,277 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-04-29 00:42:13,582 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-04-29 00:42:13,704 INFO L158 LiptonReduction]: Checked pairs total: 6612 [2021-04-29 00:42:13,705 INFO L160 LiptonReduction]: Total number of compositions: 90 [2021-04-29 00:42:13,709 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9503 [2021-04-29 00:42:13,730 INFO L129 PetriNetUnfolder]: 0/61 cut-off events. [2021-04-29 00:42:13,730 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:42:13,730 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:42:13,731 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:42:13,732 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:42:13,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:42:13,738 INFO L82 PathProgramCache]: Analyzing trace with hash 356110942, now seen corresponding path program 1 times [2021-04-29 00:42:13,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:42:13,749 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283591402] [2021-04-29 00:42:13,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:42:13,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:42:14,051 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-29 00:42:14,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:42:14,073 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 00:42:14,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283591402] [2021-04-29 00:42:14,075 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:42:14,075 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:42:14,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188035470] [2021-04-29 00:42:14,086 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:42:14,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:42:14,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:42:14,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:42:14,106 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 164 [2021-04-29 00:42:14,110 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 68 transitions, 145 flow. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 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 00:42:14,110 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:42:14,110 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 164 [2021-04-29 00:42:14,112 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:42:14,350 INFO L129 PetriNetUnfolder]: 257/789 cut-off events. [2021-04-29 00:42:14,350 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:42:14,358 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1252 conditions, 789 events. 257/789 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 6684 event pairs, 85 based on Foata normal form. 0/436 useless extension candidates. Maximal degree in co-relation 1210. Up to 257 conditions per place. [2021-04-29 00:42:14,363 INFO L132 encePairwiseOnDemand]: 151/164 looper letters, 6 selfloop transitions, 6 changer transitions 33/77 dead transitions. [2021-04-29 00:42:14,363 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 77 transitions, 225 flow [2021-04-29 00:42:14,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:42:14,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:42:14,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 360 transitions. [2021-04-29 00:42:14,391 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7317073170731707 [2021-04-29 00:42:14,392 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 360 transitions. [2021-04-29 00:42:14,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 360 transitions. [2021-04-29 00:42:14,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:42:14,401 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 360 transitions. [2021-04-29 00:42:14,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 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 00:42:14,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 0 states have call successors, (0), 0 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 00:42:14,433 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 0 states have call successors, (0), 0 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 00:42:14,435 INFO L185 Difference]: Start difference. First operand has 78 places, 68 transitions, 145 flow. Second operand 3 states and 360 transitions. [2021-04-29 00:42:14,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 77 transitions, 225 flow [2021-04-29 00:42:14,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 77 transitions, 222 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-29 00:42:14,442 INFO L241 Difference]: Finished difference. Result has 79 places, 44 transitions, 130 flow [2021-04-29 00:42:14,445 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=79, PETRI_TRANSITIONS=44} [2021-04-29 00:42:14,446 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 1 predicate places. [2021-04-29 00:42:14,447 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:42:14,447 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 44 transitions, 130 flow [2021-04-29 00:42:14,447 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 44 transitions, 130 flow [2021-04-29 00:42:14,448 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 44 transitions, 130 flow [2021-04-29 00:42:14,470 INFO L129 PetriNetUnfolder]: 48/216 cut-off events. [2021-04-29 00:42:14,471 INFO L130 PetriNetUnfolder]: For 27/27 co-relation queries the response was YES. [2021-04-29 00:42:14,472 INFO L84 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 216 events. 48/216 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1399 event pairs, 12 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 365. Up to 61 conditions per place. [2021-04-29 00:42:14,477 INFO L146 LiptonReduction]: Number of co-enabled transitions 988 [2021-04-29 00:42:14,490 INFO L158 LiptonReduction]: Checked pairs total: 87 [2021-04-29 00:42:14,490 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:42:14,490 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 43 [2021-04-29 00:42:14,492 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 44 transitions, 130 flow [2021-04-29 00:42:14,493 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 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 00:42:14,493 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:42:14,493 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:42:14,494 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 00:42:14,494 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:42:14,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:42:14,494 INFO L82 PathProgramCache]: Analyzing trace with hash -1845464117, now seen corresponding path program 1 times [2021-04-29 00:42:14,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:42:14,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34494263] [2021-04-29 00:42:14,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:42:14,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:42:14,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:42:14,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:42:14,606 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-29 00:42:14,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:42:14,621 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 00:42:14,622 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34494263] [2021-04-29 00:42:14,622 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:42:14,622 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:42:14,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727054462] [2021-04-29 00:42:14,624 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:42:14,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:42:14,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:42:14,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:42:14,631 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 164 [2021-04-29 00:42:14,632 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 44 transitions, 130 flow. Second operand has 4 states, 4 states have (on average 109.75) internal successors, (439), 4 states have internal predecessors, (439), 0 states have call successors, (0), 0 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 00:42:14,632 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:42:14,632 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 164 [2021-04-29 00:42:14,632 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:42:14,692 INFO L129 PetriNetUnfolder]: 42/188 cut-off events. [2021-04-29 00:42:14,692 INFO L130 PetriNetUnfolder]: For 36/78 co-relation queries the response was YES. [2021-04-29 00:42:14,693 INFO L84 FinitePrefix]: Finished finitePrefix Result has 422 conditions, 188 events. 42/188 cut-off events. For 36/78 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1101 event pairs, 4 based on Foata normal form. 3/124 useless extension candidates. Maximal degree in co-relation 411. Up to 53 conditions per place. [2021-04-29 00:42:14,695 INFO L132 encePairwiseOnDemand]: 157/164 looper letters, 8 selfloop transitions, 10 changer transitions 0/50 dead transitions. [2021-04-29 00:42:14,695 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 50 transitions, 196 flow [2021-04-29 00:42:14,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:42:14,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:42:14,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 453 transitions. [2021-04-29 00:42:14,700 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6905487804878049 [2021-04-29 00:42:14,701 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 453 transitions. [2021-04-29 00:42:14,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 453 transitions. [2021-04-29 00:42:14,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:42:14,701 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 453 transitions. [2021-04-29 00:42:14,703 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 113.25) internal successors, (453), 4 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:42:14,708 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 00:42:14,710 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 00:42:14,710 INFO L185 Difference]: Start difference. First operand has 50 places, 44 transitions, 130 flow. Second operand 4 states and 453 transitions. [2021-04-29 00:42:14,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 50 transitions, 196 flow [2021-04-29 00:42:14,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 50 transitions, 178 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:42:14,716 INFO L241 Difference]: Finished difference. Result has 53 places, 49 transitions, 178 flow [2021-04-29 00:42:14,716 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=178, PETRI_PLACES=53, PETRI_TRANSITIONS=49} [2021-04-29 00:42:14,717 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -25 predicate places. [2021-04-29 00:42:14,717 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:42:14,717 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 49 transitions, 178 flow [2021-04-29 00:42:14,719 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 49 transitions, 178 flow [2021-04-29 00:42:14,720 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 49 transitions, 178 flow [2021-04-29 00:42:14,743 INFO L129 PetriNetUnfolder]: 42/209 cut-off events. [2021-04-29 00:42:14,744 INFO L130 PetriNetUnfolder]: For 80/89 co-relation queries the response was YES. [2021-04-29 00:42:14,745 INFO L84 FinitePrefix]: Finished finitePrefix Result has 402 conditions, 209 events. 42/209 cut-off events. For 80/89 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1345 event pairs, 9 based on Foata normal form. 1/130 useless extension candidates. Maximal degree in co-relation 391. Up to 53 conditions per place. [2021-04-29 00:42:14,750 INFO L146 LiptonReduction]: Number of co-enabled transitions 1138 [2021-04-29 00:42:14,763 INFO L158 LiptonReduction]: Checked pairs total: 160 [2021-04-29 00:42:14,763 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:42:14,765 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 47 [2021-04-29 00:42:14,767 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 49 transitions, 178 flow [2021-04-29 00:42:14,768 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 109.75) internal successors, (439), 4 states have internal predecessors, (439), 0 states have call successors, (0), 0 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 00:42:14,769 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:42:14,769 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:42:14,769 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 00:42:14,769 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:42:14,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:42:14,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1845463838, now seen corresponding path program 1 times [2021-04-29 00:42:14,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:42:14,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505266643] [2021-04-29 00:42:14,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:42:14,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:42:14,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:42:14,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:42:14,875 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-29 00:42:14,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:42:14,885 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 00:42:14,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505266643] [2021-04-29 00:42:14,886 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:42:14,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:42:14,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489002063] [2021-04-29 00:42:14,886 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:42:14,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:42:14,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:42:14,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:42:14,889 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 164 [2021-04-29 00:42:14,890 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 49 transitions, 178 flow. Second operand has 4 states, 4 states have (on average 109.75) internal successors, (439), 4 states have internal predecessors, (439), 0 states have call successors, (0), 0 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 00:42:14,890 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:42:14,890 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 164 [2021-04-29 00:42:14,891 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:42:14,935 INFO L129 PetriNetUnfolder]: 35/179 cut-off events. [2021-04-29 00:42:14,935 INFO L130 PetriNetUnfolder]: For 90/147 co-relation queries the response was YES. [2021-04-29 00:42:14,937 INFO L84 FinitePrefix]: Finished finitePrefix Result has 427 conditions, 179 events. 35/179 cut-off events. For 90/147 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1042 event pairs, 6 based on Foata normal form. 11/122 useless extension candidates. Maximal degree in co-relation 414. Up to 46 conditions per place. [2021-04-29 00:42:14,938 INFO L132 encePairwiseOnDemand]: 157/164 looper letters, 10 selfloop transitions, 12 changer transitions 0/54 dead transitions. [2021-04-29 00:42:14,938 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 54 transitions, 254 flow [2021-04-29 00:42:14,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:42:14,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:42:14,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 452 transitions. [2021-04-29 00:42:14,941 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6890243902439024 [2021-04-29 00:42:14,941 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 452 transitions. [2021-04-29 00:42:14,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 452 transitions. [2021-04-29 00:42:14,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:42:14,942 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 452 transitions. [2021-04-29 00:42:14,943 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 0 states have call successors, (0), 0 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 00:42:14,945 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 00:42:14,946 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 00:42:14,946 INFO L185 Difference]: Start difference. First operand has 53 places, 49 transitions, 178 flow. Second operand 4 states and 452 transitions. [2021-04-29 00:42:14,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 54 transitions, 254 flow [2021-04-29 00:42:14,949 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 54 transitions, 254 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 00:42:14,951 INFO L241 Difference]: Finished difference. Result has 59 places, 54 transitions, 266 flow [2021-04-29 00:42:14,951 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=266, PETRI_PLACES=59, PETRI_TRANSITIONS=54} [2021-04-29 00:42:14,952 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -19 predicate places. [2021-04-29 00:42:14,952 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:42:14,952 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 54 transitions, 266 flow [2021-04-29 00:42:14,953 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 54 transitions, 266 flow [2021-04-29 00:42:14,953 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 54 transitions, 266 flow [2021-04-29 00:42:14,976 INFO L129 PetriNetUnfolder]: 35/182 cut-off events. [2021-04-29 00:42:14,976 INFO L130 PetriNetUnfolder]: For 214/224 co-relation queries the response was YES. [2021-04-29 00:42:14,977 INFO L84 FinitePrefix]: Finished finitePrefix Result has 446 conditions, 182 events. 35/182 cut-off events. For 214/224 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1132 event pairs, 7 based on Foata normal form. 1/113 useless extension candidates. Maximal degree in co-relation 430. Up to 46 conditions per place. [2021-04-29 00:42:14,982 INFO L146 LiptonReduction]: Number of co-enabled transitions 1284 [2021-04-29 00:42:14,999 INFO L158 LiptonReduction]: Checked pairs total: 203 [2021-04-29 00:42:14,999 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:42:14,999 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 47 [2021-04-29 00:42:15,001 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 54 transitions, 266 flow [2021-04-29 00:42:15,002 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 109.75) internal successors, (439), 4 states have internal predecessors, (439), 0 states have call successors, (0), 0 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 00:42:15,002 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:42:15,002 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:42:15,002 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 00:42:15,002 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:42:15,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:42:15,003 INFO L82 PathProgramCache]: Analyzing trace with hash 136729617, now seen corresponding path program 1 times [2021-04-29 00:42:15,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:42:15,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356047640] [2021-04-29 00:42:15,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:42:15,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:42:15,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:42:15,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:42:15,063 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:42:15,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:42:15,074 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 00:42:15,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356047640] [2021-04-29 00:42:15,074 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:42:15,074 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:42:15,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427741662] [2021-04-29 00:42:15,075 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:42:15,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:42:15,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:42:15,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:42:15,077 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 164 [2021-04-29 00:42:15,078 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 54 transitions, 266 flow. Second operand has 4 states, 4 states have (on average 103.75) internal successors, (415), 4 states have internal predecessors, (415), 0 states have call successors, (0), 0 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 00:42:15,078 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:42:15,078 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 164 [2021-04-29 00:42:15,078 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:42:16,384 INFO L129 PetriNetUnfolder]: 5782/9739 cut-off events. [2021-04-29 00:42:16,384 INFO L130 PetriNetUnfolder]: For 2046/2623 co-relation queries the response was YES. [2021-04-29 00:42:16,431 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20170 conditions, 9739 events. 5782/9739 cut-off events. For 2046/2623 co-relation queries the response was YES. Maximal size of possible extension queue 1860. Compared 85574 event pairs, 2465 based on Foata normal form. 155/2690 useless extension candidates. Maximal degree in co-relation 20152. Up to 6337 conditions per place. [2021-04-29 00:42:16,470 INFO L132 encePairwiseOnDemand]: 146/164 looper letters, 29 selfloop transitions, 27 changer transitions 0/89 dead transitions. [2021-04-29 00:42:16,471 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 89 transitions, 448 flow [2021-04-29 00:42:16,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:42:16,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:42:16,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 571 transitions. [2021-04-29 00:42:16,474 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6963414634146341 [2021-04-29 00:42:16,474 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 571 transitions. [2021-04-29 00:42:16,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 571 transitions. [2021-04-29 00:42:16,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:42:16,475 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 571 transitions. [2021-04-29 00:42:16,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 114.2) internal successors, (571), 5 states have internal predecessors, (571), 0 states have call successors, (0), 0 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 00:42:16,484 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 164.0) internal successors, (984), 6 states have internal predecessors, (984), 0 states have call successors, (0), 0 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 00:42:16,485 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 164.0) internal successors, (984), 6 states have internal predecessors, (984), 0 states have call successors, (0), 0 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 00:42:16,485 INFO L185 Difference]: Start difference. First operand has 59 places, 54 transitions, 266 flow. Second operand 5 states and 571 transitions. [2021-04-29 00:42:16,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 89 transitions, 448 flow [2021-04-29 00:42:16,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 89 transitions, 448 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 00:42:16,497 INFO L241 Difference]: Finished difference. Result has 66 places, 79 transitions, 469 flow [2021-04-29 00:42:16,497 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=469, PETRI_PLACES=66, PETRI_TRANSITIONS=79} [2021-04-29 00:42:16,497 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -12 predicate places. [2021-04-29 00:42:16,498 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:42:16,498 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 79 transitions, 469 flow [2021-04-29 00:42:16,498 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 79 transitions, 469 flow [2021-04-29 00:42:16,499 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 79 transitions, 469 flow [2021-04-29 00:42:17,383 INFO L129 PetriNetUnfolder]: 5070/8773 cut-off events. [2021-04-29 00:42:17,383 INFO L130 PetriNetUnfolder]: For 3637/4476 co-relation queries the response was YES. [2021-04-29 00:42:17,542 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25075 conditions, 8773 events. 5070/8773 cut-off events. For 3637/4476 co-relation queries the response was YES. Maximal size of possible extension queue 1827. Compared 79815 event pairs, 2303 based on Foata normal form. 19/2592 useless extension candidates. Maximal degree in co-relation 25054. Up to 8051 conditions per place. [2021-04-29 00:42:17,692 INFO L146 LiptonReduction]: Number of co-enabled transitions 1788 [2021-04-29 00:42:17,795 INFO L158 LiptonReduction]: Checked pairs total: 265 [2021-04-29 00:42:17,795 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:42:17,796 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1298 [2021-04-29 00:42:17,800 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 79 transitions, 469 flow [2021-04-29 00:42:17,800 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 103.75) internal successors, (415), 4 states have internal predecessors, (415), 0 states have call successors, (0), 0 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 00:42:17,801 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:42:17,801 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:42:17,801 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 00:42:17,801 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:42:17,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:42:17,802 INFO L82 PathProgramCache]: Analyzing trace with hash -1748993624, now seen corresponding path program 1 times [2021-04-29 00:42:17,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:42:17,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554915994] [2021-04-29 00:42:17,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:42:17,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:42:17,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:42:17,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:42:17,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:42:17,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:42:17,926 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:42:17,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:42:17,941 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 00:42:17,943 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554915994] [2021-04-29 00:42:17,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:42:17,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:42:17,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982020117] [2021-04-29 00:42:17,944 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:42:17,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:42:17,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:42:17,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:42:17,946 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 164 [2021-04-29 00:42:17,947 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 79 transitions, 469 flow. Second operand has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 0 states have call successors, (0), 0 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 00:42:17,948 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:42:17,948 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 164 [2021-04-29 00:42:17,948 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:42:19,517 INFO L129 PetriNetUnfolder]: 5113/9832 cut-off events. [2021-04-29 00:42:19,517 INFO L130 PetriNetUnfolder]: For 6073/21659 co-relation queries the response was YES. [2021-04-29 00:42:19,571 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37319 conditions, 9832 events. 5113/9832 cut-off events. For 6073/21659 co-relation queries the response was YES. Maximal size of possible extension queue 2070. Compared 99262 event pairs, 461 based on Foata normal form. 243/3232 useless extension candidates. Maximal degree in co-relation 37296. Up to 8837 conditions per place. [2021-04-29 00:42:19,613 INFO L132 encePairwiseOnDemand]: 146/164 looper letters, 21 selfloop transitions, 52 changer transitions 9/115 dead transitions. [2021-04-29 00:42:19,613 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 115 transitions, 828 flow [2021-04-29 00:42:19,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-29 00:42:19,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-29 00:42:19,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 801 transitions. [2021-04-29 00:42:19,617 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6977351916376306 [2021-04-29 00:42:19,617 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 801 transitions. [2021-04-29 00:42:19,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 801 transitions. [2021-04-29 00:42:19,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:42:19,618 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 801 transitions. [2021-04-29 00:42:19,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 114.42857142857143) internal successors, (801), 7 states have internal predecessors, (801), 0 states have call successors, (0), 0 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 00:42:19,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 164.0) internal successors, (1312), 8 states have internal predecessors, (1312), 0 states have call successors, (0), 0 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 00:42:19,626 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 164.0) internal successors, (1312), 8 states have internal predecessors, (1312), 0 states have call successors, (0), 0 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 00:42:19,627 INFO L185 Difference]: Start difference. First operand has 66 places, 79 transitions, 469 flow. Second operand 7 states and 801 transitions. [2021-04-29 00:42:19,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 115 transitions, 828 flow [2021-04-29 00:42:19,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 115 transitions, 828 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 00:42:19,663 INFO L241 Difference]: Finished difference. Result has 75 places, 104 transitions, 808 flow [2021-04-29 00:42:19,663 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=469, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=808, PETRI_PLACES=75, PETRI_TRANSITIONS=104} [2021-04-29 00:42:19,664 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -3 predicate places. [2021-04-29 00:42:19,664 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:42:19,664 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 104 transitions, 808 flow [2021-04-29 00:42:19,665 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 104 transitions, 808 flow [2021-04-29 00:42:19,666 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 75 places, 104 transitions, 808 flow [2021-04-29 00:42:20,745 INFO L129 PetriNetUnfolder]: 3223/7078 cut-off events. [2021-04-29 00:42:20,745 INFO L130 PetriNetUnfolder]: For 13154/20950 co-relation queries the response was YES. [2021-04-29 00:42:20,792 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30229 conditions, 7078 events. 3223/7078 cut-off events. For 13154/20950 co-relation queries the response was YES. Maximal size of possible extension queue 2155. Compared 80035 event pairs, 459 based on Foata normal form. 11/2075 useless extension candidates. Maximal degree in co-relation 30203. Up to 6299 conditions per place. [2021-04-29 00:42:20,892 INFO L146 LiptonReduction]: Number of co-enabled transitions 2134 [2021-04-29 00:42:20,932 INFO L158 LiptonReduction]: Checked pairs total: 330 [2021-04-29 00:42:20,932 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:42:20,932 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1268 [2021-04-29 00:42:20,941 INFO L480 AbstractCegarLoop]: Abstraction has has 75 places, 104 transitions, 808 flow [2021-04-29 00:42:20,941 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 0 states have call successors, (0), 0 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 00:42:20,942 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:42:20,942 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:42:20,942 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-29 00:42:20,942 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:42:20,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:42:20,948 INFO L82 PathProgramCache]: Analyzing trace with hash -1255876448, now seen corresponding path program 1 times [2021-04-29 00:42:20,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:42:20,949 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095939815] [2021-04-29 00:42:20,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:42:20,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:42:21,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:42:21,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:42:21,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:42:21,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:42:21,014 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-29 00:42:21,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:42:21,025 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 00:42:21,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095939815] [2021-04-29 00:42:21,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:42:21,026 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:42:21,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809034464] [2021-04-29 00:42:21,027 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:42:21,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:42:21,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:42:21,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:42:21,029 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 164 [2021-04-29 00:42:21,030 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 104 transitions, 808 flow. Second operand has 4 states, 4 states have (on average 110.25) internal successors, (441), 4 states have internal predecessors, (441), 0 states have call successors, (0), 0 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 00:42:21,030 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:42:21,031 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 164 [2021-04-29 00:42:21,031 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:42:22,756 INFO L129 PetriNetUnfolder]: 5550/11566 cut-off events. [2021-04-29 00:42:22,756 INFO L130 PetriNetUnfolder]: For 25098/41352 co-relation queries the response was YES. [2021-04-29 00:42:22,820 INFO L84 FinitePrefix]: Finished finitePrefix Result has 49028 conditions, 11566 events. 5550/11566 cut-off events. For 25098/41352 co-relation queries the response was YES. Maximal size of possible extension queue 2658. Compared 130802 event pairs, 893 based on Foata normal form. 133/3355 useless extension candidates. Maximal degree in co-relation 49000. Up to 10562 conditions per place. [2021-04-29 00:42:22,847 INFO L132 encePairwiseOnDemand]: 157/164 looper letters, 10 selfloop transitions, 15 changer transitions 1/108 dead transitions. [2021-04-29 00:42:22,848 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 108 transitions, 897 flow [2021-04-29 00:42:22,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:42:22,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:42:22,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 452 transitions. [2021-04-29 00:42:22,851 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6890243902439024 [2021-04-29 00:42:22,851 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 452 transitions. [2021-04-29 00:42:22,851 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 452 transitions. [2021-04-29 00:42:22,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:42:22,852 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 452 transitions. [2021-04-29 00:42:22,854 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 0 states have call successors, (0), 0 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 00:42:22,857 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 00:42:22,857 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 00:42:22,858 INFO L185 Difference]: Start difference. First operand has 75 places, 104 transitions, 808 flow. Second operand 4 states and 452 transitions. [2021-04-29 00:42:22,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 108 transitions, 897 flow [2021-04-29 00:42:24,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 108 transitions, 768 flow, removed 42 selfloop flow, removed 3 redundant places. [2021-04-29 00:42:24,738 INFO L241 Difference]: Finished difference. Result has 78 places, 106 transitions, 774 flow [2021-04-29 00:42:24,738 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=679, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=774, PETRI_PLACES=78, PETRI_TRANSITIONS=106} [2021-04-29 00:42:24,738 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 0 predicate places. [2021-04-29 00:42:24,738 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:42:24,739 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 106 transitions, 774 flow [2021-04-29 00:42:24,739 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 106 transitions, 774 flow [2021-04-29 00:42:24,740 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 78 places, 106 transitions, 774 flow [2021-04-29 00:42:25,718 INFO L129 PetriNetUnfolder]: 5410/11186 cut-off events. [2021-04-29 00:42:25,719 INFO L130 PetriNetUnfolder]: For 9186/9885 co-relation queries the response was YES. [2021-04-29 00:42:25,765 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37819 conditions, 11186 events. 5410/11186 cut-off events. For 9186/9885 co-relation queries the response was YES. Maximal size of possible extension queue 3144. Compared 129636 event pairs, 891 based on Foata normal form. 9/3118 useless extension candidates. Maximal degree in co-relation 37790. Up to 5285 conditions per place. [2021-04-29 00:42:25,872 INFO L146 LiptonReduction]: Number of co-enabled transitions 2332 [2021-04-29 00:42:26,054 INFO L158 LiptonReduction]: Checked pairs total: 330 [2021-04-29 00:42:26,054 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:42:26,055 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1317 [2021-04-29 00:42:26,060 INFO L480 AbstractCegarLoop]: Abstraction has has 78 places, 106 transitions, 774 flow [2021-04-29 00:42:26,061 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 110.25) internal successors, (441), 4 states have internal predecessors, (441), 0 states have call successors, (0), 0 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 00:42:26,061 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:42:26,062 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:42:26,062 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-29 00:42:26,062 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:42:26,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:42:26,063 INFO L82 PathProgramCache]: Analyzing trace with hash -1129807422, now seen corresponding path program 1 times [2021-04-29 00:42:26,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:42:26,066 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252589803] [2021-04-29 00:42:26,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:42:26,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:42:26,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:42:26,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:42:26,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:42:26,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:42:26,156 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-29 00:42:26,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:42:26,167 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 00:42:26,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252589803] [2021-04-29 00:42:26,168 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:42:26,168 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:42:26,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683958112] [2021-04-29 00:42:26,168 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:42:26,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:42:26,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:42:26,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:42:26,171 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 164 [2021-04-29 00:42:26,171 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 106 transitions, 774 flow. Second operand has 4 states, 4 states have (on average 110.5) internal successors, (442), 4 states have internal predecessors, (442), 0 states have call successors, (0), 0 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 00:42:26,172 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:42:26,172 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 164 [2021-04-29 00:42:26,172 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:42:27,945 INFO L129 PetriNetUnfolder]: 8746/17371 cut-off events. [2021-04-29 00:42:27,946 INFO L130 PetriNetUnfolder]: For 16147/17503 co-relation queries the response was YES. [2021-04-29 00:42:27,998 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58874 conditions, 17371 events. 8746/17371 cut-off events. For 16147/17503 co-relation queries the response was YES. Maximal size of possible extension queue 4608. Compared 203858 event pairs, 1550 based on Foata normal form. 108/4839 useless extension candidates. Maximal degree in co-relation 58843. Up to 8786 conditions per place. [2021-04-29 00:42:28,021 INFO L132 encePairwiseOnDemand]: 157/164 looper letters, 7 selfloop transitions, 12 changer transitions 13/108 dead transitions. [2021-04-29 00:42:28,021 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 108 transitions, 854 flow [2021-04-29 00:42:28,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:42:28,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:42:28,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 452 transitions. [2021-04-29 00:42:28,024 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6890243902439024 [2021-04-29 00:42:28,024 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 452 transitions. [2021-04-29 00:42:28,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 452 transitions. [2021-04-29 00:42:28,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:42:28,025 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 452 transitions. [2021-04-29 00:42:28,026 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 0 states have call successors, (0), 0 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 00:42:28,029 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 00:42:28,029 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 00:42:28,030 INFO L185 Difference]: Start difference. First operand has 78 places, 106 transitions, 774 flow. Second operand 4 states and 452 transitions. [2021-04-29 00:42:28,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 108 transitions, 854 flow [2021-04-29 00:42:30,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 108 transitions, 848 flow, removed 3 selfloop flow, removed 0 redundant places. [2021-04-29 00:42:30,517 INFO L241 Difference]: Finished difference. Result has 82 places, 95 transitions, 700 flow [2021-04-29 00:42:30,518 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=768, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=700, PETRI_PLACES=82, PETRI_TRANSITIONS=95} [2021-04-29 00:42:30,518 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 4 predicate places. [2021-04-29 00:42:30,518 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:42:30,519 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 95 transitions, 700 flow [2021-04-29 00:42:30,519 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 95 transitions, 700 flow [2021-04-29 00:42:30,520 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 95 transitions, 700 flow [2021-04-29 00:42:31,433 INFO L129 PetriNetUnfolder]: 5089/11013 cut-off events. [2021-04-29 00:42:31,433 INFO L130 PetriNetUnfolder]: For 10493/11631 co-relation queries the response was YES. [2021-04-29 00:42:31,474 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38030 conditions, 11013 events. 5089/11013 cut-off events. For 10493/11631 co-relation queries the response was YES. Maximal size of possible extension queue 2853. Compared 130232 event pairs, 1118 based on Foata normal form. 10/3011 useless extension candidates. Maximal degree in co-relation 37998. Up to 6449 conditions per place. [2021-04-29 00:42:31,598 INFO L146 LiptonReduction]: Number of co-enabled transitions 1864 [2021-04-29 00:42:31,616 INFO L158 LiptonReduction]: Checked pairs total: 180 [2021-04-29 00:42:31,616 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:42:31,617 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1099 [2021-04-29 00:42:31,618 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 95 transitions, 700 flow [2021-04-29 00:42:31,619 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 110.5) internal successors, (442), 4 states have internal predecessors, (442), 0 states have call successors, (0), 0 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 00:42:31,619 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:42:31,619 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:42:31,619 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-29 00:42:31,619 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:42:31,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:42:31,620 INFO L82 PathProgramCache]: Analyzing trace with hash -686368811, now seen corresponding path program 1 times [2021-04-29 00:42:31,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:42:31,620 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047968966] [2021-04-29 00:42:31,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:42:31,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:42:31,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:42:31,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:42:31,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:42:31,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:42:31,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:42:31,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:42:31,684 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:42:31,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:42:31,697 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 00:42:31,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047968966] [2021-04-29 00:42:31,697 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:42:31,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 00:42:31,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320678846] [2021-04-29 00:42:31,698 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-29 00:42:31,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:42:31,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-29 00:42:31,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-29 00:42:31,701 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 164 [2021-04-29 00:42:31,702 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 95 transitions, 700 flow. Second operand has 6 states, 6 states have (on average 103.83333333333333) internal successors, (623), 6 states have internal predecessors, (623), 0 states have call successors, (0), 0 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 00:42:31,702 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:42:31,702 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 164 [2021-04-29 00:42:31,702 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:42:33,260 INFO L129 PetriNetUnfolder]: 4231/10854 cut-off events. [2021-04-29 00:42:33,261 INFO L130 PetriNetUnfolder]: For 13093/43215 co-relation queries the response was YES. [2021-04-29 00:42:33,322 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46572 conditions, 10854 events. 4231/10854 cut-off events. For 13093/43215 co-relation queries the response was YES. Maximal size of possible extension queue 2721. Compared 143218 event pairs, 2 based on Foata normal form. 245/3528 useless extension candidates. Maximal degree in co-relation 46538. Up to 5600 conditions per place. [2021-04-29 00:42:33,337 INFO L132 encePairwiseOnDemand]: 146/164 looper letters, 2 selfloop transitions, 28 changer transitions 70/114 dead transitions. [2021-04-29 00:42:33,338 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 114 transitions, 989 flow [2021-04-29 00:42:33,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-29 00:42:33,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-29 00:42:33,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1007 transitions. [2021-04-29 00:42:33,344 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6822493224932249 [2021-04-29 00:42:33,344 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1007 transitions. [2021-04-29 00:42:33,345 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1007 transitions. [2021-04-29 00:42:33,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:42:33,346 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1007 transitions. [2021-04-29 00:42:33,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 111.88888888888889) internal successors, (1007), 9 states have internal predecessors, (1007), 0 states have call successors, (0), 0 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 00:42:33,354 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 164.0) internal successors, (1640), 10 states have internal predecessors, (1640), 0 states have call successors, (0), 0 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 00:42:33,355 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 164.0) internal successors, (1640), 10 states have internal predecessors, (1640), 0 states have call successors, (0), 0 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 00:42:33,356 INFO L185 Difference]: Start difference. First operand has 82 places, 95 transitions, 700 flow. Second operand 9 states and 1007 transitions. [2021-04-29 00:42:33,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 114 transitions, 989 flow [2021-04-29 00:42:35,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 114 transitions, 953 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-29 00:42:35,915 INFO L241 Difference]: Finished difference. Result has 90 places, 44 transitions, 376 flow [2021-04-29 00:42:35,915 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=664, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=376, PETRI_PLACES=90, PETRI_TRANSITIONS=44} [2021-04-29 00:42:35,915 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 12 predicate places. [2021-04-29 00:42:35,915 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:42:35,916 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 44 transitions, 376 flow [2021-04-29 00:42:35,916 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 44 transitions, 376 flow [2021-04-29 00:42:35,917 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 44 transitions, 376 flow [2021-04-29 00:42:35,940 INFO L129 PetriNetUnfolder]: 81/213 cut-off events. [2021-04-29 00:42:35,940 INFO L130 PetriNetUnfolder]: For 1801/1963 co-relation queries the response was YES. [2021-04-29 00:42:35,941 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1247 conditions, 213 events. 81/213 cut-off events. For 1801/1963 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 1174 event pairs, 0 based on Foata normal form. 0/101 useless extension candidates. Maximal degree in co-relation 1213. Up to 136 conditions per place. [2021-04-29 00:42:35,944 INFO L146 LiptonReduction]: Number of co-enabled transitions 256 [2021-04-29 00:42:35,989 INFO L158 LiptonReduction]: Checked pairs total: 5 [2021-04-29 00:42:35,990 INFO L160 LiptonReduction]: Total number of compositions: 1 [2021-04-29 00:42:35,990 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 75 [2021-04-29 00:42:35,991 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 44 transitions, 376 flow [2021-04-29 00:42:35,992 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 103.83333333333333) internal successors, (623), 6 states have internal predecessors, (623), 0 states have call successors, (0), 0 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 00:42:35,992 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:42:35,993 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:42:35,993 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-29 00:42:35,993 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:42:35,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:42:35,994 INFO L82 PathProgramCache]: Analyzing trace with hash 1497703135, now seen corresponding path program 1 times [2021-04-29 00:42:35,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:42:35,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577218469] [2021-04-29 00:42:35,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:42:36,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:42:36,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:42:36,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:42:36,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:42:36,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:42:36,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:42:36,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:42:36,046 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 00:42:36,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577218469] [2021-04-29 00:42:36,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:42:36,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:42:36,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449154966] [2021-04-29 00:42:36,048 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:42:36,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:42:36,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:42:36,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:42:36,050 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 165 [2021-04-29 00:42:36,051 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 44 transitions, 376 flow. Second operand has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 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 00:42:36,052 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:42:36,052 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 165 [2021-04-29 00:42:36,052 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:42:36,093 INFO L129 PetriNetUnfolder]: 81/186 cut-off events. [2021-04-29 00:42:36,094 INFO L130 PetriNetUnfolder]: For 2113/2278 co-relation queries the response was YES. [2021-04-29 00:42:36,095 INFO L84 FinitePrefix]: Finished finitePrefix Result has 928 conditions, 186 events. 81/186 cut-off events. For 2113/2278 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 753 event pairs, 0 based on Foata normal form. 28/102 useless extension candidates. Maximal degree in co-relation 903. Up to 136 conditions per place. [2021-04-29 00:42:36,096 INFO L132 encePairwiseOnDemand]: 161/165 looper letters, 0 selfloop transitions, 0 changer transitions 43/43 dead transitions. [2021-04-29 00:42:36,096 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 43 transitions, 360 flow [2021-04-29 00:42:36,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:42:36,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:42:36,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 473 transitions. [2021-04-29 00:42:36,099 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7166666666666667 [2021-04-29 00:42:36,099 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 473 transitions. [2021-04-29 00:42:36,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 473 transitions. [2021-04-29 00:42:36,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:42:36,100 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 473 transitions. [2021-04-29 00:42:36,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 118.25) internal successors, (473), 4 states have internal predecessors, (473), 0 states have call successors, (0), 0 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 00:42:36,104 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 0 states have call successors, (0), 0 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 00:42:36,105 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 0 states have call successors, (0), 0 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 00:42:36,105 INFO L185 Difference]: Start difference. First operand has 69 places, 44 transitions, 376 flow. Second operand 4 states and 473 transitions. [2021-04-29 00:42:36,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 43 transitions, 360 flow [2021-04-29 00:42:36,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 43 transitions, 202 flow, removed 29 selfloop flow, removed 23 redundant places. [2021-04-29 00:42:36,109 INFO L241 Difference]: Finished difference. Result has 48 places, 0 transitions, 0 flow [2021-04-29 00:42:36,109 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=48, PETRI_TRANSITIONS=0} [2021-04-29 00:42:36,110 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -30 predicate places. [2021-04-29 00:42:36,110 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:42:36,110 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 0 transitions, 0 flow [2021-04-29 00:42:36,111 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 0 transitions, 0 flow [2021-04-29 00:42:36,111 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 00:42:36,111 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 00:42:36,111 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:42:36,112 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 00:42:36,112 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 00:42:36,112 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:42:36,112 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:42:36,112 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-29 00:42:36,114 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 00:42:36,114 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 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 00:42:36,115 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-29 00:42:36,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 12:42:36 BasicIcfg [2021-04-29 00:42:36,120 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 00:42:36,122 INFO L168 Benchmark]: Toolchain (without parser) took 33920.68 ms. Allocated memory was 302.0 MB in the beginning and 5.8 GB in the end (delta: 5.4 GB). Free memory was 275.6 MB in the beginning and 4.6 GB in the end (delta: -4.3 GB). Peak memory consumption was 1.1 GB. Max. memory is 16.0 GB. [2021-04-29 00:42:36,122 INFO L168 Benchmark]: CDTParser took 1.04 ms. Allocated memory is still 302.0 MB. Free memory is still 270.4 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:42:36,123 INFO L168 Benchmark]: CACSL2BoogieTranslator took 796.71 ms. Allocated memory is still 302.0 MB. Free memory was 272.6 MB in the beginning and 271.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 24.6 MB. Max. memory is 16.0 GB. [2021-04-29 00:42:36,123 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.98 ms. Allocated memory is still 302.0 MB. Free memory was 271.5 MB in the beginning and 269.4 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:42:36,123 INFO L168 Benchmark]: Boogie Preprocessor took 60.19 ms. Allocated memory is still 302.0 MB. Free memory was 269.4 MB in the beginning and 268.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:42:36,124 INFO L168 Benchmark]: RCFGBuilder took 721.53 ms. Allocated memory is still 302.0 MB. Free memory was 268.2 MB in the beginning and 244.3 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:42:36,124 INFO L168 Benchmark]: TraceAbstraction took 32209.86 ms. Allocated memory was 302.0 MB in the beginning and 5.8 GB in the end (delta: 5.4 GB). Free memory was 244.3 MB in the beginning and 4.6 GB in the end (delta: -4.3 GB). Peak memory consumption was 1.1 GB. Max. memory is 16.0 GB. [2021-04-29 00:42:36,127 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.04 ms. Allocated memory is still 302.0 MB. Free memory is still 270.4 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 796.71 ms. Allocated memory is still 302.0 MB. Free memory was 272.6 MB in the beginning and 271.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 24.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 81.98 ms. Allocated memory is still 302.0 MB. Free memory was 271.5 MB in the beginning and 269.4 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 60.19 ms. Allocated memory is still 302.0 MB. Free memory was 269.4 MB in the beginning and 268.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 721.53 ms. Allocated memory is still 302.0 MB. Free memory was 268.2 MB in the beginning and 244.3 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 32209.86 ms. Allocated memory was 302.0 MB in the beginning and 5.8 GB in the end (delta: 5.4 GB). Free memory was 244.3 MB in the beginning and 4.6 GB in the end (delta: -4.3 GB). Peak memory consumption was 1.1 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9475.2ms, 68 PlacesBefore, 78 PlacesAfterwards, 59 TransitionsBefore, 68 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 7 FixpointIterations, 45 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 90 TotalNumberOfCompositions, 6612 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1838, positive: 1638, positive conditional: 1638, positive unconditional: 0, negative: 200, negative conditional: 200, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 935, positive: 864, positive conditional: 0, positive unconditional: 864, negative: 71, negative conditional: 0, negative unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 935, positive: 864, positive conditional: 0, positive unconditional: 864, negative: 71, negative conditional: 0, negative unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 935, positive: 849, positive conditional: 0, positive unconditional: 849, negative: 86, negative conditional: 0, negative unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 86, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 71, negative conditional: 0, negative unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 437, positive: 92, positive conditional: 0, positive unconditional: 92, negative: 345, negative conditional: 0, negative unconditional: 345, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1838, positive: 774, positive conditional: 774, positive unconditional: 0, negative: 129, negative conditional: 129, negative unconditional: 0, unknown: 935, unknown conditional: 935, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 930, Positive cache size: 859, Positive conditional cache size: 859, Positive unconditional cache size: 0, Negative cache size: 71, Negative conditional cache size: 71, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 42.6ms, 79 PlacesBefore, 50 PlacesAfterwards, 44 TransitionsBefore, 44 TransitionsAfterwards, 988 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 87 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 45, positive: 42, positive conditional: 42, 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: 10, positive: 9, positive conditional: 2, positive unconditional: 7, 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: 10, positive: 9, positive conditional: 2, positive unconditional: 7, 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: 10, positive: 9, positive conditional: 0, positive unconditional: 9, 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: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 45, positive: 33, positive conditional: 33, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 10, unknown conditional: 10, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 940, Positive cache size: 868, Positive conditional cache size: 868, Positive unconditional cache size: 0, Negative cache size: 72, Negative conditional cache size: 72, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 44.7ms, 53 PlacesBefore, 53 PlacesAfterwards, 49 TransitionsBefore, 49 TransitionsAfterwards, 1138 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 160 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 83, positive: 78, positive conditional: 78, 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: 4, positive: 3, positive conditional: 2, positive unconditional: 1, 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: 4, positive: 3, positive conditional: 2, positive unconditional: 1, 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: 4, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 83, positive: 75, positive conditional: 75, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 944, Positive cache size: 871, Positive conditional cache size: 871, Positive unconditional cache size: 0, Negative cache size: 73, Negative conditional cache size: 73, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 46.5ms, 59 PlacesBefore, 59 PlacesAfterwards, 54 TransitionsBefore, 54 TransitionsAfterwards, 1284 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 203 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 100, positive: 94, positive conditional: 94, 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: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 100, positive: 90, positive conditional: 90, 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): 949, Positive cache size: 875, Positive conditional cache size: 875, Positive unconditional cache size: 0, Negative cache size: 74, Negative conditional cache size: 74, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1297.1ms, 66 PlacesBefore, 66 PlacesAfterwards, 79 TransitionsBefore, 79 TransitionsAfterwards, 1788 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 265 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 60, positive: 55, positive conditional: 55, 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: 6, positive: 6, positive conditional: 3, positive unconditional: 3, 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: 6, positive: 6, positive conditional: 3, positive unconditional: 3, 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: 6, positive: 6, positive conditional: 0, positive unconditional: 6, 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: 60, positive: 49, positive conditional: 49, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 6, unknown conditional: 6, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 955, Positive cache size: 881, Positive conditional cache size: 881, Positive unconditional cache size: 0, Negative cache size: 74, Negative conditional cache size: 74, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1267.5ms, 75 PlacesBefore, 75 PlacesAfterwards, 104 TransitionsBefore, 104 TransitionsAfterwards, 2134 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 330 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 95, positive: 90, positive conditional: 90, 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: 13, positive: 13, positive conditional: 10, positive unconditional: 3, 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: 13, positive: 13, positive conditional: 10, positive unconditional: 3, 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: 13, positive: 13, positive conditional: 0, positive unconditional: 13, 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: 95, positive: 77, positive conditional: 77, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 13, unknown conditional: 13, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 968, Positive cache size: 894, Positive conditional cache size: 894, Positive unconditional cache size: 0, Negative cache size: 74, Negative conditional cache size: 74, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1315.1ms, 78 PlacesBefore, 78 PlacesAfterwards, 106 TransitionsBefore, 106 TransitionsAfterwards, 2332 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 330 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 115, positive: 110, positive conditional: 110, 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: 16, positive: 15, positive conditional: 13, 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: 16, positive: 15, positive conditional: 13, 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: 16, positive: 15, positive conditional: 0, positive unconditional: 15, 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: 8, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 115, positive: 95, positive conditional: 95, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 16, unknown conditional: 16, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 984, Positive cache size: 909, Positive conditional cache size: 909, Positive unconditional cache size: 0, Negative cache size: 75, Negative conditional cache size: 75, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1097.7ms, 82 PlacesBefore, 82 PlacesAfterwards, 95 TransitionsBefore, 95 TransitionsAfterwards, 1864 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 180 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 72, positive: 69, positive conditional: 69, 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: 3, positive: 3, positive conditional: 3, 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: 3, positive: 3, positive conditional: 3, 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: 3, positive: 3, positive conditional: 0, positive unconditional: 3, 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: 72, positive: 66, positive conditional: 66, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 987, Positive cache size: 912, Positive conditional cache size: 912, Positive unconditional cache size: 0, Negative cache size: 75, Negative conditional cache size: 75, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 73.7ms, 90 PlacesBefore, 69 PlacesAfterwards, 44 TransitionsBefore, 44 TransitionsAfterwards, 256 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 5 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 5, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 988, Positive cache size: 913, Positive conditional cache size: 913, Positive unconditional cache size: 0, Negative cache size: 75, Negative conditional cache size: 75, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.4ms, 48 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): 988, Positive cache size: 913, Positive conditional cache size: 913, Positive unconditional cache size: 0, Negative cache size: 75, Negative conditional cache size: 75, 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: 12.8ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 32010.3ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 15982.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9602.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 87 SDtfs, 68 SDslu, 31 SDs, 0 SdLazy, 336 SolverSat, 130 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 434.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 170.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=808occurred 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: 39.6ms SsaConstructionTime, 237.7ms SatisfiabilityAnalysisTime, 649.5ms InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 98 ConstructedInterpolants, 0 QuantifiedInterpolants, 448 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...