/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/safe016_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 00:01:59,364 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 00:01:59,367 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 00:01:59,425 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-29 00:01:59,455 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 00:01:59,458 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 00:01:59,460 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 00:01:59,462 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 00:01:59,466 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 00:01:59,467 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 00:01:59,474 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 00:01:59,485 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 00:01:59,487 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 00:01:59,489 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 00:01:59,491 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 00:01:59,493 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 00:01:59,500 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 00:01:59,512 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 00:01:59,512 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 00:01:59,513 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 00:01:59,514 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 00:01:59,570 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 00:01:59,570 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 00:01:59,575 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 00:01:59,575 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 00:01:59,575 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 00:01:59,575 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 00:01:59,576 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 00:01:59,576 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 00:01:59,576 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 00:01:59,577 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 00:01:59,578 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 00:01:59,578 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 00:01:59,578 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 00:01:59,579 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 00:01:59,579 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 00:01:59,579 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 00:01:59,579 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 00:01:59,579 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 00:01:59,580 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 00:01:59,580 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 00:01:59,580 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 00:01:59,581 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:01:59,581 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 00:01:59,581 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 00:01:59,581 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 00:01:59,582 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 00:01:59,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 00:01:59,582 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 00:01:59,582 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 00:01:59,582 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 00:01:59,583 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 00:01:59,994 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 00:02:00,035 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 00:02:00,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 00:02:00,039 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 00:02:00,040 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 00:02:00,041 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_tso.opt.i [2021-04-29 00:02:00,138 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb5b3d148/b79eadc76c414196883aa9f134c87e44/FLAG0b6bea1c4 [2021-04-29 00:02:00,901 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 00:02:00,902 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_tso.opt.i [2021-04-29 00:02:00,922 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb5b3d148/b79eadc76c414196883aa9f134c87e44/FLAG0b6bea1c4 [2021-04-29 00:02:01,133 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb5b3d148/b79eadc76c414196883aa9f134c87e44 [2021-04-29 00:02:01,139 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 00:02:01,200 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 00:02:01,206 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 00:02:01,206 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 00:02:01,210 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 00:02:01,212 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:02:01" (1/1) ... [2021-04-29 00:02:01,214 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b5678a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:02:01, skipping insertion in model container [2021-04-29 00:02:01,214 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:02:01" (1/1) ... [2021-04-29 00:02:01,223 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 00:02:01,300 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 00:02:01,489 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/safe016_tso.opt.i[949,962] [2021-04-29 00:02:01,759 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:02:01,772 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 00:02:01,793 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/safe016_tso.opt.i[949,962] [2021-04-29 00:02:01,868 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:02:01,985 INFO L208 MainTranslator]: Completed translation [2021-04-29 00:02:01,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:02:01 WrapperNode [2021-04-29 00:02:01,986 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 00:02:01,987 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 00:02:01,987 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 00:02:01,987 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 00:02:01,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:02:01" (1/1) ... [2021-04-29 00:02:02,013 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:02:01" (1/1) ... [2021-04-29 00:02:02,036 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 00:02:02,037 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 00:02:02,037 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 00:02:02,037 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 00:02:02,046 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:02:01" (1/1) ... [2021-04-29 00:02:02,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:02:01" (1/1) ... [2021-04-29 00:02:02,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:02:01" (1/1) ... [2021-04-29 00:02:02,051 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:02:01" (1/1) ... [2021-04-29 00:02:02,058 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:02:01" (1/1) ... [2021-04-29 00:02:02,060 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:02:01" (1/1) ... [2021-04-29 00:02:02,062 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:02:01" (1/1) ... [2021-04-29 00:02:02,066 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 00:02:02,067 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 00:02:02,067 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 00:02:02,068 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 00:02:02,069 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:02:01" (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 00:02:02,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 00:02:02,158 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-29 00:02:02,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 00:02:02,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 00:02:02,159 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-29 00:02:02,159 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-29 00:02:02,159 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-29 00:02:02,159 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-29 00:02:02,159 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-29 00:02:02,159 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-29 00:02:02,160 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-04-29 00:02:02,160 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-04-29 00:02:02,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-29 00:02:02,160 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-29 00:02:02,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 00:02:02,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 00:02:02,162 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 00:02:02,543 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 00:02:02,543 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-29 00:02:02,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:02:02 BoogieIcfgContainer [2021-04-29 00:02:02,553 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 00:02:02,554 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 00:02:02,554 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 00:02:02,560 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 00:02:02,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 12:02:01" (1/3) ... [2021-04-29 00:02:02,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ec6bdcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:02:02, skipping insertion in model container [2021-04-29 00:02:02,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:02:01" (2/3) ... [2021-04-29 00:02:02,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ec6bdcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:02:02, skipping insertion in model container [2021-04-29 00:02:02,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:02:02" (3/3) ... [2021-04-29 00:02:02,567 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_tso.opt.i [2021-04-29 00:02:02,576 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 00:02:02,581 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 00:02:02,582 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 00:02:02,671 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,671 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,671 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,672 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,672 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,672 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,672 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,673 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,673 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,674 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,674 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,674 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,675 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,675 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,675 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,675 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,676 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,676 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,676 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,676 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,677 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,677 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,677 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,677 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,678 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,678 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,678 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,679 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,679 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,679 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,679 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,680 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,680 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,680 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,681 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,681 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,681 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,681 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,682 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,682 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,686 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,686 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,686 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,687 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,687 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,687 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,688 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,688 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,691 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,691 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,691 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,692 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,697 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,698 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,698 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,698 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,701 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,702 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,702 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,702 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,705 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,705 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,705 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,706 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:02:02,708 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 00:02:02,734 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-04-29 00:02:02,763 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 00:02:02,764 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 00:02:02,764 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 00:02:02,764 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 00:02:02,764 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 00:02:02,764 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 00:02:02,765 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 00:02:02,765 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 00:02:02,780 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 96 places, 85 transitions, 190 flow [2021-04-29 00:02:02,832 INFO L129 PetriNetUnfolder]: 2/81 cut-off events. [2021-04-29 00:02:02,832 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:02:02,838 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 81 events. 2/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 64 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2021-04-29 00:02:02,838 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 85 transitions, 190 flow [2021-04-29 00:02:02,844 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 67 transitions, 146 flow [2021-04-29 00:02:02,846 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:02:02,863 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 67 transitions, 146 flow [2021-04-29 00:02:02,868 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 67 transitions, 146 flow [2021-04-29 00:02:02,870 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 79 places, 67 transitions, 146 flow [2021-04-29 00:02:02,896 INFO L129 PetriNetUnfolder]: 1/67 cut-off events. [2021-04-29 00:02:02,896 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:02:02,897 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 67 events. 1/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 55 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2021-04-29 00:02:02,905 INFO L146 LiptonReduction]: Number of co-enabled transitions 1250 [2021-04-29 00:02:07,968 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:02:08,473 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:02:08,623 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:02:09,542 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:02:09,706 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:02:09,873 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:02:10,037 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:02:10,211 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:02:10,375 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:02:11,734 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:02:11,908 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:02:12,090 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:02:12,275 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:02:12,596 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:02:12,765 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:02:12,951 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:02:13,390 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:02:13,573 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:02:13,793 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2021-04-29 00:02:14,037 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2021-04-29 00:02:14,299 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-04-29 00:02:14,561 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-04-29 00:02:15,015 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:02:15,208 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:02:15,303 INFO L158 LiptonReduction]: Checked pairs total: 10607 [2021-04-29 00:02:15,304 INFO L160 LiptonReduction]: Total number of compositions: 121 [2021-04-29 00:02:15,308 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12464 [2021-04-29 00:02:15,332 INFO L129 PetriNetUnfolder]: 0/82 cut-off events. [2021-04-29 00:02:15,332 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:02:15,333 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:02:15,334 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:02:15,334 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:02:15,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:02:15,340 INFO L82 PathProgramCache]: Analyzing trace with hash 888822923, now seen corresponding path program 1 times [2021-04-29 00:02:15,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:02:15,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354178828] [2021-04-29 00:02:15,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:02:15,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:02:15,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:02:15,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:02:15,668 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 00:02:15,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354178828] [2021-04-29 00:02:15,670 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:02:15,670 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:02:15,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041052513] [2021-04-29 00:02:15,681 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:02:15,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:02:15,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:02:15,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:02:15,699 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 206 [2021-04-29 00:02:15,707 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 85 transitions, 182 flow. Second operand has 3 states, 3 states have (on average 144.66666666666666) internal successors, (434), 3 states have internal predecessors, (434), 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 00:02:15,707 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:02:15,707 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 206 [2021-04-29 00:02:15,709 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:02:15,794 INFO L129 PetriNetUnfolder]: 5/95 cut-off events. [2021-04-29 00:02:15,794 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:02:15,795 INFO L84 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 95 events. 5/95 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 475 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 87. Up to 20 conditions per place. [2021-04-29 00:02:15,796 INFO L132 encePairwiseOnDemand]: 188/206 looper letters, 1 selfloop transitions, 2 changer transitions 59/90 dead transitions. [2021-04-29 00:02:15,797 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 90 transitions, 248 flow [2021-04-29 00:02:15,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:02:15,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:02:15,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 462 transitions. [2021-04-29 00:02:15,815 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7475728155339806 [2021-04-29 00:02:15,816 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 462 transitions. [2021-04-29 00:02:15,817 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 462 transitions. [2021-04-29 00:02:15,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:02:15,822 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 462 transitions. [2021-04-29 00:02:15,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 154.0) internal successors, (462), 3 states have internal predecessors, (462), 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 00:02:15,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 206.0) internal successors, (824), 4 states have internal predecessors, (824), 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 00:02:15,838 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 206.0) internal successors, (824), 4 states have internal predecessors, (824), 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 00:02:15,840 INFO L185 Difference]: Start difference. First operand has 98 places, 85 transitions, 182 flow. Second operand 3 states and 462 transitions. [2021-04-29 00:02:15,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 90 transitions, 248 flow [2021-04-29 00:02:15,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 90 transitions, 244 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-04-29 00:02:15,848 INFO L241 Difference]: Finished difference. Result has 97 places, 31 transitions, 78 flow [2021-04-29 00:02:15,851 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=97, PETRI_TRANSITIONS=31} [2021-04-29 00:02:15,852 INFO L343 CegarLoopForPetriNet]: 98 programPoint places, -1 predicate places. [2021-04-29 00:02:15,852 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:02:15,852 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 31 transitions, 78 flow [2021-04-29 00:02:15,853 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 31 transitions, 78 flow [2021-04-29 00:02:15,853 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 43 places, 31 transitions, 78 flow [2021-04-29 00:02:15,859 INFO L129 PetriNetUnfolder]: 0/31 cut-off events. [2021-04-29 00:02:15,859 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:02:15,859 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 31 events. 0/31 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 70 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-04-29 00:02:15,860 INFO L146 LiptonReduction]: Number of co-enabled transitions 536 [2021-04-29 00:02:16,018 INFO L158 LiptonReduction]: Checked pairs total: 557 [2021-04-29 00:02:16,018 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:02:16,018 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 166 [2021-04-29 00:02:16,021 INFO L480 AbstractCegarLoop]: Abstraction has has 43 places, 31 transitions, 78 flow [2021-04-29 00:02:16,022 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 144.66666666666666) internal successors, (434), 3 states have internal predecessors, (434), 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 00:02:16,022 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:02:16,022 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:02:16,022 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 00:02:16,023 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:02:16,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:02:16,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1783704735, now seen corresponding path program 1 times [2021-04-29 00:02:16,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:02:16,024 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877647588] [2021-04-29 00:02:16,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:02:16,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:02:16,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:02:16,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:02:16,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:02:16,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:02:16,106 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 00:02:16,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877647588] [2021-04-29 00:02:16,107 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:02:16,107 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:02:16,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660973420] [2021-04-29 00:02:16,108 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:02:16,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:02:16,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:02:16,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:02:16,112 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 206 [2021-04-29 00:02:16,114 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 31 transitions, 78 flow. Second operand has 4 states, 4 states have (on average 133.75) internal successors, (535), 4 states have internal predecessors, (535), 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 00:02:16,114 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:02:16,114 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 206 [2021-04-29 00:02:16,114 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:02:16,149 INFO L129 PetriNetUnfolder]: 6/70 cut-off events. [2021-04-29 00:02:16,149 INFO L130 PetriNetUnfolder]: For 9/18 co-relation queries the response was YES. [2021-04-29 00:02:16,150 INFO L84 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 70 events. 6/70 cut-off events. For 9/18 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 296 event pairs, 0 based on Foata normal form. 4/48 useless extension candidates. Maximal degree in co-relation 104. Up to 11 conditions per place. [2021-04-29 00:02:16,150 INFO L132 encePairwiseOnDemand]: 201/206 looper letters, 5 selfloop transitions, 4 changer transitions 1/36 dead transitions. [2021-04-29 00:02:16,150 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 36 transitions, 111 flow [2021-04-29 00:02:16,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:02:16,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:02:16,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 544 transitions. [2021-04-29 00:02:16,155 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6601941747572816 [2021-04-29 00:02:16,155 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 544 transitions. [2021-04-29 00:02:16,155 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 544 transitions. [2021-04-29 00:02:16,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:02:16,156 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 544 transitions. [2021-04-29 00:02:16,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 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 00:02:16,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 206.0) internal successors, (1030), 5 states have internal predecessors, (1030), 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 00:02:16,163 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 206.0) internal successors, (1030), 5 states have internal predecessors, (1030), 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 00:02:16,163 INFO L185 Difference]: Start difference. First operand has 43 places, 31 transitions, 78 flow. Second operand 4 states and 544 transitions. [2021-04-29 00:02:16,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 36 transitions, 111 flow [2021-04-29 00:02:16,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 36 transitions, 105 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:02:16,165 INFO L241 Difference]: Finished difference. Result has 46 places, 33 transitions, 100 flow [2021-04-29 00:02:16,165 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=100, PETRI_PLACES=46, PETRI_TRANSITIONS=33} [2021-04-29 00:02:16,166 INFO L343 CegarLoopForPetriNet]: 98 programPoint places, -52 predicate places. [2021-04-29 00:02:16,166 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:02:16,166 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 33 transitions, 100 flow [2021-04-29 00:02:16,167 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 33 transitions, 100 flow [2021-04-29 00:02:16,167 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 33 transitions, 100 flow [2021-04-29 00:02:16,175 INFO L129 PetriNetUnfolder]: 3/48 cut-off events. [2021-04-29 00:02:16,175 INFO L130 PetriNetUnfolder]: For 9/10 co-relation queries the response was YES. [2021-04-29 00:02:16,176 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 48 events. 3/48 cut-off events. For 9/10 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 146 event pairs, 1 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 75. Up to 10 conditions per place. [2021-04-29 00:02:16,177 INFO L146 LiptonReduction]: Number of co-enabled transitions 514 [2021-04-29 00:02:16,188 INFO L158 LiptonReduction]: Checked pairs total: 325 [2021-04-29 00:02:16,188 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:02:16,188 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22 [2021-04-29 00:02:16,190 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 33 transitions, 100 flow [2021-04-29 00:02:16,191 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 133.75) internal successors, (535), 4 states have internal predecessors, (535), 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 00:02:16,191 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:02:16,191 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:02:16,191 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 00:02:16,191 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:02:16,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:02:16,192 INFO L82 PathProgramCache]: Analyzing trace with hash -540503336, now seen corresponding path program 1 times [2021-04-29 00:02:16,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:02:16,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965849208] [2021-04-29 00:02:16,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:02:16,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:02:16,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:02:16,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:02:16,334 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 00:02:16,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965849208] [2021-04-29 00:02:16,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:02:16,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:02:16,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994809276] [2021-04-29 00:02:16,336 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:02:16,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:02:16,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:02:16,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:02:16,341 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 206 [2021-04-29 00:02:16,342 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 33 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 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 00:02:16,343 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:02:16,343 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 206 [2021-04-29 00:02:16,343 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:02:16,361 INFO L129 PetriNetUnfolder]: 3/48 cut-off events. [2021-04-29 00:02:16,361 INFO L130 PetriNetUnfolder]: For 23/26 co-relation queries the response was YES. [2021-04-29 00:02:16,362 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 48 events. 3/48 cut-off events. For 23/26 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 149 event pairs, 1 based on Foata normal form. 2/35 useless extension candidates. Maximal degree in co-relation 79. Up to 10 conditions per place. [2021-04-29 00:02:16,363 INFO L132 encePairwiseOnDemand]: 203/206 looper letters, 1 selfloop transitions, 2 changer transitions 1/33 dead transitions. [2021-04-29 00:02:16,363 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 33 transitions, 106 flow [2021-04-29 00:02:16,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:02:16,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:02:16,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 442 transitions. [2021-04-29 00:02:16,365 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7152103559870551 [2021-04-29 00:02:16,366 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 442 transitions. [2021-04-29 00:02:16,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 442 transitions. [2021-04-29 00:02:16,366 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:02:16,366 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 442 transitions. [2021-04-29 00:02:16,368 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 147.33333333333334) internal successors, (442), 3 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 00:02:16,370 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 206.0) internal successors, (824), 4 states have internal predecessors, (824), 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 00:02:16,371 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 206.0) internal successors, (824), 4 states have internal predecessors, (824), 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 00:02:16,372 INFO L185 Difference]: Start difference. First operand has 46 places, 33 transitions, 100 flow. Second operand 3 states and 442 transitions. [2021-04-29 00:02:16,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 33 transitions, 106 flow [2021-04-29 00:02:16,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 33 transitions, 97 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-04-29 00:02:16,374 INFO L241 Difference]: Finished difference. Result has 46 places, 32 transitions, 97 flow [2021-04-29 00:02:16,374 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=97, PETRI_PLACES=46, PETRI_TRANSITIONS=32} [2021-04-29 00:02:16,375 INFO L343 CegarLoopForPetriNet]: 98 programPoint places, -52 predicate places. [2021-04-29 00:02:16,375 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:02:16,375 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 32 transitions, 97 flow [2021-04-29 00:02:16,376 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 32 transitions, 97 flow [2021-04-29 00:02:16,376 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 32 transitions, 97 flow [2021-04-29 00:02:16,385 INFO L129 PetriNetUnfolder]: 3/47 cut-off events. [2021-04-29 00:02:16,385 INFO L130 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2021-04-29 00:02:16,386 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 47 events. 3/47 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 140 event pairs, 1 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 72. Up to 10 conditions per place. [2021-04-29 00:02:16,387 INFO L146 LiptonReduction]: Number of co-enabled transitions 474 [2021-04-29 00:02:16,392 INFO L158 LiptonReduction]: Checked pairs total: 274 [2021-04-29 00:02:16,392 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:02:16,392 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 17 [2021-04-29 00:02:16,394 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 32 transitions, 97 flow [2021-04-29 00:02:16,395 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 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 00:02:16,395 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:02:16,395 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:02:16,395 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 00:02:16,396 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:02:16,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:02:16,396 INFO L82 PathProgramCache]: Analyzing trace with hash -1393370230, now seen corresponding path program 1 times [2021-04-29 00:02:16,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:02:16,397 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502154507] [2021-04-29 00:02:16,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:02:16,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:02:16,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:02:16,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:02:16,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:02:16,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:02:16,455 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:02:16,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:02:16,466 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 00:02:16,466 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502154507] [2021-04-29 00:02:16,466 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:02:16,467 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:02:16,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601180742] [2021-04-29 00:02:16,467 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:02:16,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:02:16,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:02:16,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:02:16,471 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 206 [2021-04-29 00:02:16,472 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 32 transitions, 97 flow. Second operand has 4 states, 4 states have (on average 126.25) internal successors, (505), 4 states have internal predecessors, (505), 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 00:02:16,472 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:02:16,472 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 206 [2021-04-29 00:02:16,472 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:02:16,533 INFO L129 PetriNetUnfolder]: 42/206 cut-off events. [2021-04-29 00:02:16,533 INFO L130 PetriNetUnfolder]: For 111/111 co-relation queries the response was YES. [2021-04-29 00:02:16,534 INFO L84 FinitePrefix]: Finished finitePrefix Result has 402 conditions, 206 events. 42/206 cut-off events. For 111/111 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1247 event pairs, 5 based on Foata normal form. 12/150 useless extension candidates. Maximal degree in co-relation 390. Up to 53 conditions per place. [2021-04-29 00:02:16,536 INFO L132 encePairwiseOnDemand]: 199/206 looper letters, 8 selfloop transitions, 9 changer transitions 0/39 dead transitions. [2021-04-29 00:02:16,536 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 39 transitions, 154 flow [2021-04-29 00:02:16,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:02:16,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:02:16,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 518 transitions. [2021-04-29 00:02:16,539 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6286407766990292 [2021-04-29 00:02:16,539 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 518 transitions. [2021-04-29 00:02:16,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 518 transitions. [2021-04-29 00:02:16,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:02:16,540 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 518 transitions. [2021-04-29 00:02:16,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 129.5) internal successors, (518), 4 states have internal predecessors, (518), 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 00:02:16,548 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 206.0) internal successors, (1030), 5 states have internal predecessors, (1030), 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 00:02:16,549 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 206.0) internal successors, (1030), 5 states have internal predecessors, (1030), 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 00:02:16,549 INFO L185 Difference]: Start difference. First operand has 45 places, 32 transitions, 97 flow. Second operand 4 states and 518 transitions. [2021-04-29 00:02:16,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 39 transitions, 154 flow [2021-04-29 00:02:16,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 39 transitions, 148 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:02:16,552 INFO L241 Difference]: Finished difference. Result has 49 places, 37 transitions, 157 flow [2021-04-29 00:02:16,552 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=157, PETRI_PLACES=49, PETRI_TRANSITIONS=37} [2021-04-29 00:02:16,552 INFO L343 CegarLoopForPetriNet]: 98 programPoint places, -49 predicate places. [2021-04-29 00:02:16,552 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:02:16,553 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 37 transitions, 157 flow [2021-04-29 00:02:16,553 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 37 transitions, 157 flow [2021-04-29 00:02:16,554 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 37 transitions, 157 flow [2021-04-29 00:02:16,578 INFO L129 PetriNetUnfolder]: 25/187 cut-off events. [2021-04-29 00:02:16,578 INFO L130 PetriNetUnfolder]: For 119/121 co-relation queries the response was YES. [2021-04-29 00:02:16,580 INFO L84 FinitePrefix]: Finished finitePrefix Result has 383 conditions, 187 events. 25/187 cut-off events. For 119/121 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1177 event pairs, 4 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 370. Up to 40 conditions per place. [2021-04-29 00:02:16,584 INFO L146 LiptonReduction]: Number of co-enabled transitions 558 [2021-04-29 00:02:16,589 INFO L158 LiptonReduction]: Checked pairs total: 27 [2021-04-29 00:02:16,589 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:02:16,589 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 37 [2021-04-29 00:02:16,591 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 37 transitions, 157 flow [2021-04-29 00:02:16,592 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 126.25) internal successors, (505), 4 states have internal predecessors, (505), 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 00:02:16,592 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:02:16,592 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:02:16,592 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 00:02:16,592 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:02:16,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:02:16,593 INFO L82 PathProgramCache]: Analyzing trace with hash 448817216, now seen corresponding path program 1 times [2021-04-29 00:02:16,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:02:16,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419755724] [2021-04-29 00:02:16,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:02:16,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:02:16,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:02:16,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:02:16,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:02:16,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:02:16,685 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 00:02:16,686 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419755724] [2021-04-29 00:02:16,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:02:16,686 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:02:16,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276803300] [2021-04-29 00:02:16,687 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:02:16,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:02:16,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:02:16,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:02:16,696 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 206 [2021-04-29 00:02:16,697 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 37 transitions, 157 flow. Second operand has 4 states, 4 states have (on average 134.75) internal successors, (539), 4 states have internal predecessors, (539), 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 00:02:16,697 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:02:16,697 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 206 [2021-04-29 00:02:16,697 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:02:16,749 INFO L129 PetriNetUnfolder]: 17/191 cut-off events. [2021-04-29 00:02:16,749 INFO L130 PetriNetUnfolder]: For 222/237 co-relation queries the response was YES. [2021-04-29 00:02:16,750 INFO L84 FinitePrefix]: Finished finitePrefix Result has 414 conditions, 191 events. 17/191 cut-off events. For 222/237 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1340 event pairs, 2 based on Foata normal form. 10/125 useless extension candidates. Maximal degree in co-relation 399. Up to 33 conditions per place. [2021-04-29 00:02:16,751 INFO L132 encePairwiseOnDemand]: 201/206 looper letters, 6 selfloop transitions, 6 changer transitions 6/46 dead transitions. [2021-04-29 00:02:16,751 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 46 transitions, 237 flow [2021-04-29 00:02:16,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:02:16,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:02:16,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 548 transitions. [2021-04-29 00:02:16,754 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6650485436893204 [2021-04-29 00:02:16,754 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 548 transitions. [2021-04-29 00:02:16,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 548 transitions. [2021-04-29 00:02:16,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:02:16,755 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 548 transitions. [2021-04-29 00:02:16,757 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 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 00:02:16,759 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 206.0) internal successors, (1030), 5 states have internal predecessors, (1030), 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 00:02:16,760 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 206.0) internal successors, (1030), 5 states have internal predecessors, (1030), 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 00:02:16,760 INFO L185 Difference]: Start difference. First operand has 49 places, 37 transitions, 157 flow. Second operand 4 states and 548 transitions. [2021-04-29 00:02:16,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 46 transitions, 237 flow [2021-04-29 00:02:16,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 46 transitions, 235 flow, removed 1 selfloop flow, removed 0 redundant places. [2021-04-29 00:02:16,765 INFO L241 Difference]: Finished difference. Result has 54 places, 39 transitions, 202 flow [2021-04-29 00:02:16,765 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=202, PETRI_PLACES=54, PETRI_TRANSITIONS=39} [2021-04-29 00:02:16,766 INFO L343 CegarLoopForPetriNet]: 98 programPoint places, -44 predicate places. [2021-04-29 00:02:16,766 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:02:16,766 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 39 transitions, 202 flow [2021-04-29 00:02:16,766 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 39 transitions, 202 flow [2021-04-29 00:02:16,767 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 39 transitions, 202 flow [2021-04-29 00:02:16,782 INFO L129 PetriNetUnfolder]: 9/111 cut-off events. [2021-04-29 00:02:16,783 INFO L130 PetriNetUnfolder]: For 130/131 co-relation queries the response was YES. [2021-04-29 00:02:16,783 INFO L84 FinitePrefix]: Finished finitePrefix Result has 273 conditions, 111 events. 9/111 cut-off events. For 130/131 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 589 event pairs, 1 based on Foata normal form. 1/71 useless extension candidates. Maximal degree in co-relation 256. Up to 21 conditions per place. [2021-04-29 00:02:16,786 INFO L146 LiptonReduction]: Number of co-enabled transitions 508 [2021-04-29 00:02:16,790 INFO L158 LiptonReduction]: Checked pairs total: 29 [2021-04-29 00:02:16,791 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:02:16,791 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 25 [2021-04-29 00:02:16,793 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 39 transitions, 202 flow [2021-04-29 00:02:16,793 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 134.75) internal successors, (539), 4 states have internal predecessors, (539), 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 00:02:16,794 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:02:16,794 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:02:16,794 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-29 00:02:16,794 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:02:16,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:02:16,795 INFO L82 PathProgramCache]: Analyzing trace with hash 147077179, now seen corresponding path program 1 times [2021-04-29 00:02:16,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:02:16,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501720587] [2021-04-29 00:02:16,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:02:16,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:02:16,861 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-29 00:02:16,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-29 00:02:16,867 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:02:16,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:02:16,875 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 00:02:16,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501720587] [2021-04-29 00:02:16,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:02:16,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:02:16,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697371469] [2021-04-29 00:02:16,876 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:02:16,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:02:16,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:02:16,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:02:16,879 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 206 [2021-04-29 00:02:16,880 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 39 transitions, 202 flow. Second operand has 4 states, 4 states have (on average 130.75) internal successors, (523), 4 states have internal predecessors, (523), 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 00:02:16,880 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:02:16,881 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 206 [2021-04-29 00:02:16,881 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:02:18,776 INFO L129 PetriNetUnfolder]: 8520/12464 cut-off events. [2021-04-29 00:02:18,776 INFO L130 PetriNetUnfolder]: For 23553/25427 co-relation queries the response was YES. [2021-04-29 00:02:18,833 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28277 conditions, 12464 events. 8520/12464 cut-off events. For 23553/25427 co-relation queries the response was YES. Maximal size of possible extension queue 2019. Compared 91832 event pairs, 4924 based on Foata normal form. 394/5161 useless extension candidates. Maximal degree in co-relation 28258. Up to 9430 conditions per place. [2021-04-29 00:02:18,897 INFO L132 encePairwiseOnDemand]: 191/206 looper letters, 26 selfloop transitions, 26 changer transitions 0/76 dead transitions. [2021-04-29 00:02:18,897 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 76 transitions, 380 flow [2021-04-29 00:02:18,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:02:18,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:02:18,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 704 transitions. [2021-04-29 00:02:18,900 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.683495145631068 [2021-04-29 00:02:18,900 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 704 transitions. [2021-04-29 00:02:18,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 704 transitions. [2021-04-29 00:02:18,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:02:18,901 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 704 transitions. [2021-04-29 00:02:18,904 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 140.8) internal successors, (704), 5 states have internal predecessors, (704), 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 00:02:18,906 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 206.0) internal successors, (1236), 6 states have internal predecessors, (1236), 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 00:02:18,907 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 206.0) internal successors, (1236), 6 states have internal predecessors, (1236), 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 00:02:18,907 INFO L185 Difference]: Start difference. First operand has 53 places, 39 transitions, 202 flow. Second operand 5 states and 704 transitions. [2021-04-29 00:02:18,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 76 transitions, 380 flow [2021-04-29 00:02:18,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 76 transitions, 370 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-04-29 00:02:18,916 INFO L241 Difference]: Finished difference. Result has 58 places, 64 transitions, 387 flow [2021-04-29 00:02:18,916 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=387, PETRI_PLACES=58, PETRI_TRANSITIONS=64} [2021-04-29 00:02:18,916 INFO L343 CegarLoopForPetriNet]: 98 programPoint places, -40 predicate places. [2021-04-29 00:02:18,916 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:02:18,917 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 64 transitions, 387 flow [2021-04-29 00:02:18,917 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 64 transitions, 387 flow [2021-04-29 00:02:18,918 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 64 transitions, 387 flow [2021-04-29 00:02:20,600 INFO L129 PetriNetUnfolder]: 8498/12442 cut-off events. [2021-04-29 00:02:20,601 INFO L130 PetriNetUnfolder]: For 17366/31748 co-relation queries the response was YES. [2021-04-29 00:02:20,664 INFO L84 FinitePrefix]: Finished finitePrefix Result has 39044 conditions, 12442 events. 8498/12442 cut-off events. For 17366/31748 co-relation queries the response was YES. Maximal size of possible extension queue 2005. Compared 90868 event pairs, 4924 based on Foata normal form. 3/4800 useless extension candidates. Maximal degree in co-relation 39024. Up to 11738 conditions per place. [2021-04-29 00:02:20,812 INFO L146 LiptonReduction]: Number of co-enabled transitions 826 [2021-04-29 00:02:20,844 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:02:20,844 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:02:20,845 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1929 [2021-04-29 00:02:20,846 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 64 transitions, 387 flow [2021-04-29 00:02:20,848 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 130.75) internal successors, (523), 4 states have internal predecessors, (523), 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 00:02:20,848 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:02:20,849 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:02:20,849 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-29 00:02:20,849 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:02:20,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:02:20,850 INFO L82 PathProgramCache]: Analyzing trace with hash -1843823543, now seen corresponding path program 1 times [2021-04-29 00:02:20,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:02:20,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972127547] [2021-04-29 00:02:20,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:02:20,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:02:20,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:02:20,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:02:20,970 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-29 00:02:20,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-29 00:02:20,977 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:02:20,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:02:20,986 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 00:02:20,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972127547] [2021-04-29 00:02:20,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:02:20,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:02:20,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429596279] [2021-04-29 00:02:20,987 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:02:20,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:02:20,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:02:20,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:02:20,990 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 206 [2021-04-29 00:02:20,992 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 64 transitions, 387 flow. Second operand has 5 states, 5 states have (on average 130.8) internal successors, (654), 5 states have internal predecessors, (654), 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 00:02:20,992 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:02:20,992 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 206 [2021-04-29 00:02:20,992 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:02:23,105 INFO L129 PetriNetUnfolder]: 9105/13790 cut-off events. [2021-04-29 00:02:23,106 INFO L130 PetriNetUnfolder]: For 27037/81594 co-relation queries the response was YES. [2021-04-29 00:02:23,183 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56391 conditions, 13790 events. 9105/13790 cut-off events. For 27037/81594 co-relation queries the response was YES. Maximal size of possible extension queue 2559. Compared 107040 event pairs, 2134 based on Foata normal form. 527/5694 useless extension candidates. Maximal degree in co-relation 56369. Up to 13178 conditions per place. [2021-04-29 00:02:23,257 INFO L132 encePairwiseOnDemand]: 191/206 looper letters, 26 selfloop transitions, 51 changer transitions 0/101 dead transitions. [2021-04-29 00:02:23,258 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 101 transitions, 761 flow [2021-04-29 00:02:23,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-29 00:02:23,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-29 00:02:23,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 989 transitions. [2021-04-29 00:02:23,263 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6858529819694869 [2021-04-29 00:02:23,263 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 989 transitions. [2021-04-29 00:02:23,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 989 transitions. [2021-04-29 00:02:23,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:02:23,264 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 989 transitions. [2021-04-29 00:02:23,267 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 141.28571428571428) internal successors, (989), 7 states have internal predecessors, (989), 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 00:02:23,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 206.0) internal successors, (1648), 8 states have internal predecessors, (1648), 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 00:02:23,272 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 206.0) internal successors, (1648), 8 states have internal predecessors, (1648), 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 00:02:23,272 INFO L185 Difference]: Start difference. First operand has 58 places, 64 transitions, 387 flow. Second operand 7 states and 989 transitions. [2021-04-29 00:02:23,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 101 transitions, 761 flow [2021-04-29 00:02:23,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 101 transitions, 748 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 00:02:23,304 INFO L241 Difference]: Finished difference. Result has 66 places, 89 transitions, 740 flow [2021-04-29 00:02:23,304 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=740, PETRI_PLACES=66, PETRI_TRANSITIONS=89} [2021-04-29 00:02:23,304 INFO L343 CegarLoopForPetriNet]: 98 programPoint places, -32 predicate places. [2021-04-29 00:02:23,305 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:02:23,305 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 89 transitions, 740 flow [2021-04-29 00:02:23,305 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 89 transitions, 740 flow [2021-04-29 00:02:23,306 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 89 transitions, 740 flow [2021-04-29 00:02:25,052 INFO L129 PetriNetUnfolder]: 9105/13784 cut-off events. [2021-04-29 00:02:25,052 INFO L130 PetriNetUnfolder]: For 38046/74071 co-relation queries the response was YES. [2021-04-29 00:02:25,212 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68921 conditions, 13784 events. 9105/13784 cut-off events. For 38046/74071 co-relation queries the response was YES. Maximal size of possible extension queue 2507. Compared 111362 event pairs, 2134 based on Foata normal form. 12/5187 useless extension candidates. Maximal degree in co-relation 68897. Up to 13184 conditions per place. [2021-04-29 00:02:25,387 INFO L146 LiptonReduction]: Number of co-enabled transitions 1256 [2021-04-29 00:02:25,413 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:02:25,414 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:02:25,414 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2109 [2021-04-29 00:02:25,415 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 89 transitions, 740 flow [2021-04-29 00:02:25,416 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 130.8) internal successors, (654), 5 states have internal predecessors, (654), 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 00:02:25,416 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:02:25,416 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:02:25,416 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-29 00:02:25,417 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:02:25,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:02:25,417 INFO L82 PathProgramCache]: Analyzing trace with hash -1978613692, now seen corresponding path program 1 times [2021-04-29 00:02:25,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:02:25,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095884570] [2021-04-29 00:02:25,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:02:25,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:02:25,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:02:25,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:02:25,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:02:25,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:02:25,470 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-29 00:02:25,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-29 00:02:25,476 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:02:25,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:02:25,486 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 00:02:25,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095884570] [2021-04-29 00:02:25,487 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:02:25,487 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 00:02:25,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541762133] [2021-04-29 00:02:25,487 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-29 00:02:25,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:02:25,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-29 00:02:25,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-29 00:02:25,491 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 206 [2021-04-29 00:02:25,492 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 89 transitions, 740 flow. Second operand has 6 states, 6 states have (on average 130.83333333333334) internal successors, (785), 6 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:02:25,492 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:02:25,492 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 206 [2021-04-29 00:02:25,492 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:02:27,485 INFO L129 PetriNetUnfolder]: 8376/13313 cut-off events. [2021-04-29 00:02:27,486 INFO L130 PetriNetUnfolder]: For 38004/150544 co-relation queries the response was YES. [2021-04-29 00:02:27,524 INFO L84 FinitePrefix]: Finished finitePrefix Result has 79148 conditions, 13313 events. 8376/13313 cut-off events. For 38004/150544 co-relation queries the response was YES. Maximal size of possible extension queue 2694. Compared 110752 event pairs, 325 based on Foata normal form. 627/5496 useless extension candidates. Maximal degree in co-relation 79122. Up to 12935 conditions per place. [2021-04-29 00:02:27,565 INFO L132 encePairwiseOnDemand]: 191/206 looper letters, 14 selfloop transitions, 76 changer transitions 12/126 dead transitions. [2021-04-29 00:02:27,566 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 126 transitions, 1310 flow [2021-04-29 00:02:27,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-29 00:02:27,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-29 00:02:27,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1274 transitions. [2021-04-29 00:02:27,571 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6871628910463862 [2021-04-29 00:02:27,571 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1274 transitions. [2021-04-29 00:02:27,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1274 transitions. [2021-04-29 00:02:27,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:02:27,572 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1274 transitions. [2021-04-29 00:02:27,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 141.55555555555554) internal successors, (1274), 9 states have internal predecessors, (1274), 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 00:02:27,581 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 206.0) internal successors, (2060), 10 states have internal predecessors, (2060), 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 00:02:27,582 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 206.0) internal successors, (2060), 10 states have internal predecessors, (2060), 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 00:02:27,582 INFO L185 Difference]: Start difference. First operand has 66 places, 89 transitions, 740 flow. Second operand 9 states and 1274 transitions. [2021-04-29 00:02:27,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 126 transitions, 1310 flow [2021-04-29 00:02:27,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 126 transitions, 1172 flow, removed 49 selfloop flow, removed 3 redundant places. [2021-04-29 00:02:27,742 INFO L241 Difference]: Finished difference. Result has 74 places, 114 transitions, 1092 flow [2021-04-29 00:02:27,742 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1092, PETRI_PLACES=74, PETRI_TRANSITIONS=114} [2021-04-29 00:02:27,742 INFO L343 CegarLoopForPetriNet]: 98 programPoint places, -24 predicate places. [2021-04-29 00:02:27,743 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:02:27,743 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 114 transitions, 1092 flow [2021-04-29 00:02:27,743 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 114 transitions, 1092 flow [2021-04-29 00:02:27,744 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 114 transitions, 1092 flow [2021-04-29 00:02:28,775 INFO L129 PetriNetUnfolder]: 6189/10397 cut-off events. [2021-04-29 00:02:28,776 INFO L130 PetriNetUnfolder]: For 48980/91368 co-relation queries the response was YES. [2021-04-29 00:02:28,955 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63992 conditions, 10397 events. 6189/10397 cut-off events. For 48980/91368 co-relation queries the response was YES. Maximal size of possible extension queue 1999. Compared 94105 event pairs, 325 based on Foata normal form. 34/3962 useless extension candidates. Maximal degree in co-relation 63965. Up to 9037 conditions per place. [2021-04-29 00:02:29,024 INFO L146 LiptonReduction]: Number of co-enabled transitions 1454 [2021-04-29 00:02:29,046 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:02:29,046 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:02:29,046 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1303 [2021-04-29 00:02:29,047 INFO L480 AbstractCegarLoop]: Abstraction has has 74 places, 114 transitions, 1092 flow [2021-04-29 00:02:29,048 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 130.83333333333334) internal successors, (785), 6 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:02:29,048 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:02:29,048 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:02:29,048 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-29 00:02:29,048 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:02:29,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:02:29,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1636984601, now seen corresponding path program 1 times [2021-04-29 00:02:29,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:02:29,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999577398] [2021-04-29 00:02:29,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:02:29,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:02:29,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:02:29,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:02:29,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:02:29,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:02:29,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:02:29,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:02:29,105 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-29 00:02:29,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-29 00:02:29,112 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:02:29,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:02:29,122 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 00:02:29,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999577398] [2021-04-29 00:02:29,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:02:29,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-29 00:02:29,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058718409] [2021-04-29 00:02:29,123 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-29 00:02:29,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:02:29,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-29 00:02:29,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-04-29 00:02:29,126 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 206 [2021-04-29 00:02:29,127 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 114 transitions, 1092 flow. Second operand has 7 states, 7 states have (on average 130.85714285714286) internal successors, (916), 7 states have internal predecessors, (916), 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 00:02:29,127 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:02:29,127 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 206 [2021-04-29 00:02:29,127 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:02:30,583 INFO L129 PetriNetUnfolder]: 5622/9695 cut-off events. [2021-04-29 00:02:30,583 INFO L130 PetriNetUnfolder]: For 47600/179783 co-relation queries the response was YES. [2021-04-29 00:02:30,632 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68414 conditions, 9695 events. 5622/9695 cut-off events. For 47600/179783 co-relation queries the response was YES. Maximal size of possible extension queue 2328. Compared 87718 event pairs, 1 based on Foata normal form. 538/4057 useless extension candidates. Maximal degree in co-relation 68385. Up to 8551 conditions per place. [2021-04-29 00:02:30,651 INFO L132 encePairwiseOnDemand]: 191/206 looper letters, 2 selfloop transitions, 49 changer transitions 62/127 dead transitions. [2021-04-29 00:02:30,651 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 127 transitions, 1450 flow [2021-04-29 00:02:30,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-29 00:02:30,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-04-29 00:02:30,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1535 transitions. [2021-04-29 00:02:30,658 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.677405119152692 [2021-04-29 00:02:30,658 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1535 transitions. [2021-04-29 00:02:30,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1535 transitions. [2021-04-29 00:02:30,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:02:30,660 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1535 transitions. [2021-04-29 00:02:30,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 139.54545454545453) internal successors, (1535), 11 states have internal predecessors, (1535), 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 00:02:30,670 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 206.0) internal successors, (2472), 12 states have internal predecessors, (2472), 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 00:02:30,671 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 206.0) internal successors, (2472), 12 states have internal predecessors, (2472), 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 00:02:30,671 INFO L185 Difference]: Start difference. First operand has 74 places, 114 transitions, 1092 flow. Second operand 11 states and 1535 transitions. [2021-04-29 00:02:30,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 127 transitions, 1450 flow [2021-04-29 00:02:32,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 127 transitions, 1177 flow, removed 98 selfloop flow, removed 4 redundant places. [2021-04-29 00:02:32,545 INFO L241 Difference]: Finished difference. Result has 83 places, 65 transitions, 593 flow [2021-04-29 00:02:32,545 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=819, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=593, PETRI_PLACES=83, PETRI_TRANSITIONS=65} [2021-04-29 00:02:32,545 INFO L343 CegarLoopForPetriNet]: 98 programPoint places, -15 predicate places. [2021-04-29 00:02:32,545 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:02:32,546 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 65 transitions, 593 flow [2021-04-29 00:02:32,546 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 65 transitions, 593 flow [2021-04-29 00:02:32,546 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 65 transitions, 593 flow [2021-04-29 00:02:32,680 INFO L129 PetriNetUnfolder]: 1017/1771 cut-off events. [2021-04-29 00:02:32,681 INFO L130 PetriNetUnfolder]: For 12230/15881 co-relation queries the response was YES. [2021-04-29 00:02:32,685 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10736 conditions, 1771 events. 1017/1771 cut-off events. For 12230/15881 co-relation queries the response was YES. Maximal size of possible extension queue 380. Compared 12589 event pairs, 0 based on Foata normal form. 1/648 useless extension candidates. Maximal degree in co-relation 10705. Up to 1297 conditions per place. [2021-04-29 00:02:32,703 INFO L146 LiptonReduction]: Number of co-enabled transitions 344 [2021-04-29 00:02:32,709 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:02:32,709 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:02:32,709 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 164 [2021-04-29 00:02:32,710 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 65 transitions, 593 flow [2021-04-29 00:02:32,711 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 130.85714285714286) internal successors, (916), 7 states have internal predecessors, (916), 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 00:02:32,711 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:02:32,711 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:02:32,711 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-29 00:02:32,711 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:02:32,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:02:32,712 INFO L82 PathProgramCache]: Analyzing trace with hash 459816711, now seen corresponding path program 1 times [2021-04-29 00:02:32,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:02:32,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463838319] [2021-04-29 00:02:32,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:02:32,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:02:32,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:02:32,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:02:32,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:02:32,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:02:32,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:02:32,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:02:32,755 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 00:02:32,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463838319] [2021-04-29 00:02:32,755 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:02:32,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:02:32,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525937675] [2021-04-29 00:02:32,756 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:02:32,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:02:32,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:02:32,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:02:32,758 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 206 [2021-04-29 00:02:32,759 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 65 transitions, 593 flow. Second operand has 4 states, 4 states have (on average 134.25) internal successors, (537), 4 states have internal predecessors, (537), 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 00:02:32,759 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:02:32,759 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 206 [2021-04-29 00:02:32,760 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:02:32,989 INFO L129 PetriNetUnfolder]: 1521/2518 cut-off events. [2021-04-29 00:02:32,990 INFO L130 PetriNetUnfolder]: For 14886/18873 co-relation queries the response was YES. [2021-04-29 00:02:32,996 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14215 conditions, 2518 events. 1521/2518 cut-off events. For 14886/18873 co-relation queries the response was YES. Maximal size of possible extension queue 549. Compared 16938 event pairs, 0 based on Foata normal form. 82/945 useless extension candidates. Maximal degree in co-relation 14192. Up to 1945 conditions per place. [2021-04-29 00:02:32,999 INFO L132 encePairwiseOnDemand]: 202/206 looper letters, 0 selfloop transitions, 0 changer transitions 66/66 dead transitions. [2021-04-29 00:02:32,999 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 66 transitions, 584 flow [2021-04-29 00:02:32,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:02:33,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:02:33,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 672 transitions. [2021-04-29 00:02:33,002 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6524271844660194 [2021-04-29 00:02:33,003 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 672 transitions. [2021-04-29 00:02:33,003 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 672 transitions. [2021-04-29 00:02:33,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:02:33,004 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 672 transitions. [2021-04-29 00:02:33,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 134.4) internal successors, (672), 5 states have internal predecessors, (672), 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 00:02:33,008 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 206.0) internal successors, (1236), 6 states have internal predecessors, (1236), 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 00:02:33,009 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 206.0) internal successors, (1236), 6 states have internal predecessors, (1236), 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 00:02:33,009 INFO L185 Difference]: Start difference. First operand has 71 places, 65 transitions, 593 flow. Second operand 5 states and 672 transitions. [2021-04-29 00:02:33,009 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 66 transitions, 584 flow [2021-04-29 00:02:33,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 66 transitions, 349 flow, removed 63 selfloop flow, removed 16 redundant places. [2021-04-29 00:02:33,224 INFO L241 Difference]: Finished difference. Result has 58 places, 0 transitions, 0 flow [2021-04-29 00:02:33,224 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=58, PETRI_TRANSITIONS=0} [2021-04-29 00:02:33,225 INFO L343 CegarLoopForPetriNet]: 98 programPoint places, -40 predicate places. [2021-04-29 00:02:33,225 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:02:33,225 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 0 transitions, 0 flow [2021-04-29 00:02:33,225 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 0 transitions, 0 flow [2021-04-29 00:02:33,225 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 00:02:33,226 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 00:02:33,226 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:02:33,226 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 00:02:33,226 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 00:02:33,226 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:02:33,226 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:02:33,227 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-29 00:02:33,228 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 00:02:33,228 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 134.25) internal successors, (537), 4 states have internal predecessors, (537), 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 00:02:33,228 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-29 00:02:33,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 12:02:33 BasicIcfg [2021-04-29 00:02:33,233 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 00:02:33,234 INFO L168 Benchmark]: Toolchain (without parser) took 32091.27 ms. Allocated memory was 306.2 MB in the beginning and 8.1 GB in the end (delta: 7.8 GB). Free memory was 279.9 MB in the beginning and 7.2 GB in the end (delta: -6.9 GB). Peak memory consumption was 875.9 MB. Max. memory is 16.0 GB. [2021-04-29 00:02:33,235 INFO L168 Benchmark]: CDTParser took 0.80 ms. Allocated memory is still 306.2 MB. Free memory was 274.2 MB in the beginning and 274.1 MB in the end (delta: 153.8 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:02:33,235 INFO L168 Benchmark]: CACSL2BoogieTranslator took 780.49 ms. Allocated memory is still 306.2 MB. Free memory was 276.8 MB in the beginning and 278.6 MB in the end (delta: -1.8 MB). Peak memory consumption was 28.7 MB. Max. memory is 16.0 GB. [2021-04-29 00:02:33,236 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.23 ms. Allocated memory is still 306.2 MB. Free memory was 278.6 MB in the beginning and 276.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:02:33,236 INFO L168 Benchmark]: Boogie Preprocessor took 29.48 ms. Allocated memory is still 306.2 MB. Free memory was 276.7 MB in the beginning and 274.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:02:33,236 INFO L168 Benchmark]: RCFGBuilder took 485.43 ms. Allocated memory is still 306.2 MB. Free memory was 274.6 MB in the beginning and 249.5 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-04-29 00:02:33,237 INFO L168 Benchmark]: TraceAbstraction took 30678.89 ms. Allocated memory was 306.2 MB in the beginning and 8.1 GB in the end (delta: 7.8 GB). Free memory was 249.5 MB in the beginning and 7.2 GB in the end (delta: -6.9 GB). Peak memory consumption was 840.9 MB. Max. memory is 16.0 GB. [2021-04-29 00:02:33,239 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80 ms. Allocated memory is still 306.2 MB. Free memory was 274.2 MB in the beginning and 274.1 MB in the end (delta: 153.8 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 780.49 ms. Allocated memory is still 306.2 MB. Free memory was 276.8 MB in the beginning and 278.6 MB in the end (delta: -1.8 MB). Peak memory consumption was 28.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 49.23 ms. Allocated memory is still 306.2 MB. Free memory was 278.6 MB in the beginning and 276.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.48 ms. Allocated memory is still 306.2 MB. Free memory was 276.7 MB in the beginning and 274.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 485.43 ms. Allocated memory is still 306.2 MB. Free memory was 274.6 MB in the beginning and 249.5 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 30678.89 ms. Allocated memory was 306.2 MB in the beginning and 8.1 GB in the end (delta: 7.8 GB). Free memory was 249.5 MB in the beginning and 7.2 GB in the end (delta: -6.9 GB). Peak memory consumption was 840.9 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12436.2ms, 79 PlacesBefore, 98 PlacesAfterwards, 67 TransitionsBefore, 85 TransitionsAfterwards, 1250 CoEnabledTransitionPairs, 8 FixpointIterations, 71 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 121 TotalNumberOfCompositions, 10607 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2937, positive: 2669, positive conditional: 2669, positive unconditional: 0, negative: 268, negative conditional: 268, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1310, positive: 1255, positive conditional: 0, positive unconditional: 1255, negative: 55, negative conditional: 0, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1310, positive: 1255, positive conditional: 0, positive unconditional: 1255, negative: 55, negative conditional: 0, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1310, positive: 1196, positive conditional: 0, positive unconditional: 1196, negative: 114, negative conditional: 0, negative unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 114, positive: 59, positive conditional: 0, positive unconditional: 59, negative: 55, negative conditional: 0, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 525, positive: 267, positive conditional: 0, positive unconditional: 267, negative: 258, negative conditional: 0, negative unconditional: 258, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2937, positive: 1414, positive conditional: 1414, positive unconditional: 0, negative: 213, negative conditional: 213, negative unconditional: 0, unknown: 1310, unknown conditional: 1310, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1294, Positive cache size: 1239, Positive conditional cache size: 1239, Positive unconditional cache size: 0, Negative cache size: 55, Negative conditional cache size: 55, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 165.2ms, 97 PlacesBefore, 43 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 536 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 557 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 267, positive: 240, positive conditional: 240, positive unconditional: 0, negative: 27, negative conditional: 27, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 119, positive: 105, positive conditional: 11, positive unconditional: 94, negative: 14, negative conditional: 3, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 119, positive: 105, positive conditional: 11, positive unconditional: 94, negative: 14, negative conditional: 3, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 119, positive: 77, positive conditional: 0, positive unconditional: 77, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 42, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 14, negative conditional: 3, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 143, positive: 88, positive conditional: 0, positive unconditional: 88, negative: 55, negative conditional: 14, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 267, positive: 135, positive conditional: 135, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 119, unknown conditional: 119, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1413, Positive cache size: 1344, Positive conditional cache size: 1344, Positive unconditional cache size: 0, Negative cache size: 69, Negative conditional cache size: 69, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.2ms, 46 PlacesBefore, 46 PlacesAfterwards, 33 TransitionsBefore, 33 TransitionsAfterwards, 514 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 325 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 146, positive: 131, positive conditional: 131, positive unconditional: 0, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 17, positive: 16, positive conditional: 4, positive unconditional: 12, 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: 17, positive: 16, positive conditional: 4, positive unconditional: 12, 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: 17, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 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: 146, positive: 115, positive conditional: 115, positive unconditional: 0, negative: 14, negative conditional: 14, negative unconditional: 0, unknown: 17, unknown conditional: 17, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1430, Positive cache size: 1360, Positive conditional cache size: 1360, Positive unconditional cache size: 0, Negative cache size: 70, Negative conditional cache size: 70, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.5ms, 46 PlacesBefore, 45 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 474 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 274 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 143, positive: 130, positive conditional: 130, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 21, positive: 21, positive conditional: 14, positive unconditional: 7, 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: 21, positive: 21, positive conditional: 14, positive unconditional: 7, 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: 21, positive: 21, positive conditional: 0, positive unconditional: 21, 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: 143, positive: 109, positive conditional: 109, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 21, unknown conditional: 21, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1451, Positive cache size: 1381, Positive conditional cache size: 1381, Positive unconditional cache size: 0, Negative cache size: 70, Negative conditional cache size: 70, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 35.8ms, 49 PlacesBefore, 49 PlacesAfterwards, 37 TransitionsBefore, 37 TransitionsAfterwards, 558 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 27 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 2, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1451, Positive cache size: 1381, Positive conditional cache size: 1381, Positive unconditional cache size: 0, Negative cache size: 70, Negative conditional cache size: 70, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 24.4ms, 54 PlacesBefore, 53 PlacesAfterwards, 39 TransitionsBefore, 39 TransitionsAfterwards, 508 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 29 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 2, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1451, Positive cache size: 1381, Positive conditional cache size: 1381, Positive unconditional cache size: 0, Negative cache size: 70, Negative conditional cache size: 70, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1927.6ms, 58 PlacesBefore, 58 PlacesAfterwards, 64 TransitionsBefore, 64 TransitionsAfterwards, 826 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): 1451, Positive cache size: 1381, Positive conditional cache size: 1381, Positive unconditional cache size: 0, Negative cache size: 70, Negative conditional cache size: 70, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2108.5ms, 66 PlacesBefore, 66 PlacesAfterwards, 89 TransitionsBefore, 89 TransitionsAfterwards, 1256 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): 1451, Positive cache size: 1381, Positive conditional cache size: 1381, Positive unconditional cache size: 0, Negative cache size: 70, Negative conditional cache size: 70, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1302.7ms, 74 PlacesBefore, 74 PlacesAfterwards, 114 TransitionsBefore, 114 TransitionsAfterwards, 1454 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): 1451, Positive cache size: 1381, Positive conditional cache size: 1381, Positive unconditional cache size: 0, Negative cache size: 70, Negative conditional cache size: 70, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 163.3ms, 83 PlacesBefore, 71 PlacesAfterwards, 65 TransitionsBefore, 65 TransitionsAfterwards, 344 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): 1451, Positive cache size: 1381, Positive conditional cache size: 1381, Positive unconditional cache size: 0, Negative cache size: 70, Negative conditional cache size: 70, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.2ms, 58 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): 1451, Positive cache size: 1381, Positive conditional cache size: 1381, Positive unconditional cache size: 0, Negative cache size: 70, Negative conditional cache size: 70, Negative unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 84 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 16.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 30471.2ms, OverallIterations: 10, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 10915.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12550.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 73 SDtfs, 61 SDslu, 32 SDs, 0 SdLazy, 504 SolverSat, 217 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 635.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 171.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1092occurred in iteration=8, InterpolantAutomatonStates: 55, 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: 29.2ms SsaConstructionTime, 247.9ms SatisfiabilityAnalysisTime, 678.5ms InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 132 ConstructedInterpolants, 0 QuantifiedInterpolants, 438 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...