/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/safe011_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 23:46:20,068 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 23:46:20,071 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 23:46:20,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 23:46:20,108 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 23:46:20,109 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 23:46:20,111 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 23:46:20,114 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 23:46:20,116 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 23:46:20,118 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 23:46:20,119 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 23:46:20,121 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 23:46:20,121 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 23:46:20,123 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 23:46:20,124 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 23:46:20,126 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 23:46:20,127 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 23:46:20,128 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 23:46:20,131 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 23:46:20,133 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 23:46:20,138 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 23:46:20,141 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 23:46:20,143 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 23:46:20,144 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 23:46:20,152 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 23:46:20,174 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 23:46:20,175 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 23:46:20,177 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 23:46:20,178 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 [2021-04-28 23:46:20,240 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 23:46:20,241 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 23:46:20,246 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 23:46:20,246 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 23:46:20,247 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 23:46:20,247 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 23:46:20,247 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 23:46:20,247 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 23:46:20,248 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 23:46:20,249 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 23:46:20,251 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 23:46:20,251 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 23:46:20,251 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 23:46:20,251 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 23:46:20,252 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 23:46:20,252 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 23:46:20,252 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 23:46:20,252 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 23:46:20,253 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 23:46:20,253 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 23:46:20,253 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 23:46:20,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 23:46:20,254 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 23:46:20,254 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 23:46:20,254 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 23:46:20,254 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 23:46:20,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 23:46:20,255 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 23:46:20,255 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 23:46:20,255 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 23:46:20,255 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 23:46:20,710 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 23:46:20,760 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 23:46:20,763 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 23:46:20,765 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 23:46:20,766 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 23:46:20,767 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.oepc.i [2021-04-28 23:46:20,858 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0619b5817/4aab16cca1bd467686e9b892760b5db4/FLAGef30849b0 [2021-04-28 23:46:21,716 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 23:46:21,717 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe011_tso.oepc.i [2021-04-28 23:46:21,743 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0619b5817/4aab16cca1bd467686e9b892760b5db4/FLAGef30849b0 [2021-04-28 23:46:21,968 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0619b5817/4aab16cca1bd467686e9b892760b5db4 [2021-04-28 23:46:21,972 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 23:46:22,008 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 23:46:22,010 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 23:46:22,010 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 23:46:22,016 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 23:46:22,018 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 11:46:21" (1/1) ... [2021-04-28 23:46:22,020 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@382d6040 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:46:22, skipping insertion in model container [2021-04-28 23:46:22,020 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 11:46:21" (1/1) ... [2021-04-28 23:46:22,028 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 23:46:22,090 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 23:46:22,260 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/safe011_tso.oepc.i[950,963] [2021-04-28 23:46:22,625 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 23:46:22,638 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 23:46:22,654 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/safe011_tso.oepc.i[950,963] [2021-04-28 23:46:22,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 23:46:22,831 INFO L208 MainTranslator]: Completed translation [2021-04-28 23:46:22,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:46:22 WrapperNode [2021-04-28 23:46:22,833 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 23:46:22,835 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 23:46:22,836 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 23:46:22,836 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 23:46:22,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:46:22" (1/1) ... [2021-04-28 23:46:22,887 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:46:22" (1/1) ... [2021-04-28 23:46:22,912 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 23:46:22,913 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 23:46:22,913 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 23:46:22,913 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 23:46:22,923 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:46:22" (1/1) ... [2021-04-28 23:46:22,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:46:22" (1/1) ... [2021-04-28 23:46:22,926 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:46:22" (1/1) ... [2021-04-28 23:46:22,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:46:22" (1/1) ... [2021-04-28 23:46:22,933 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:46:22" (1/1) ... [2021-04-28 23:46:22,935 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:46:22" (1/1) ... [2021-04-28 23:46:22,938 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:46:22" (1/1) ... [2021-04-28 23:46:22,941 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 23:46:22,942 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 23:46:22,943 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 23:46:22,943 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 23:46:22,944 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:46:22" (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 [2021-04-28 23:46:23,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 23:46:23,064 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 23:46:23,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 23:46:23,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 23:46:23,066 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 23:46:23,066 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 23:46:23,067 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 23:46:23,067 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 23:46:23,068 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 23:46:23,068 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 23:46:23,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 23:46:23,068 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 23:46:23,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 23:46:23,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 23:46:23,071 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-28 23:46:23,568 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 23:46:23,568 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-28 23:46:23,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 11:46:23 BoogieIcfgContainer [2021-04-28 23:46:23,571 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 23:46:23,573 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 23:46:23,573 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 23:46:23,577 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 23:46:23,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 11:46:21" (1/3) ... [2021-04-28 23:46:23,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@128d993e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 11:46:23, skipping insertion in model container [2021-04-28 23:46:23,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:46:22" (2/3) ... [2021-04-28 23:46:23,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@128d993e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 11:46:23, skipping insertion in model container [2021-04-28 23:46:23,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 11:46:23" (3/3) ... [2021-04-28 23:46:23,582 INFO L111 eAbstractionObserver]: Analyzing ICFG safe011_tso.oepc.i [2021-04-28 23:46:23,591 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 23:46:23,598 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-28 23:46:23,600 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 23:46:23,642 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,643 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,643 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,644 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,644 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,644 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,644 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,645 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,645 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,645 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,646 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,646 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,647 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,647 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,647 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,647 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,648 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,648 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,648 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,648 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,649 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,649 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,649 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,650 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,650 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,650 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,651 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,651 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,651 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,651 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,652 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,652 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,652 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,653 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,653 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,653 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,656 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,656 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,657 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,657 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,663 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,663 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,664 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,664 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,667 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,667 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,668 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,668 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:23,671 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 23:46:23,702 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-04-28 23:46:23,731 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 23:46:23,731 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 23:46:23,731 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 23:46:23,732 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 23:46:23,732 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 23:46:23,732 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 23:46:23,732 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 23:46:23,732 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 23:46:23,749 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 74 transitions, 163 flow [2021-04-28 23:46:23,831 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2021-04-28 23:46:23,831 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:46:23,840 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 71 events. 2/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-04-28 23:46:23,841 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 74 transitions, 163 flow [2021-04-28 23:46:23,863 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 59 transitions, 127 flow [2021-04-28 23:46:23,866 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:46:23,889 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 59 transitions, 127 flow [2021-04-28 23:46:23,896 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 59 transitions, 127 flow [2021-04-28 23:46:23,899 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 59 transitions, 127 flow [2021-04-28 23:46:23,941 INFO L129 PetriNetUnfolder]: 1/59 cut-off events. [2021-04-28 23:46:23,942 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:46:23,943 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 59 events. 1/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-04-28 23:46:23,949 INFO L146 LiptonReduction]: Number of co-enabled transitions 864 [2021-04-28 23:46:30,767 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 23:46:31,006 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 23:46:31,235 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:46:31,490 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:46:31,728 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 23:46:31,960 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 23:46:32,236 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-28 23:46:32,551 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-28 23:46:32,811 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 23:46:33,035 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 23:46:33,622 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 23:46:33,918 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 23:46:34,203 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:46:34,478 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:46:34,711 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 23:46:34,935 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 23:46:35,246 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:46:35,593 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:46:35,698 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 23:46:35,920 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 23:46:36,032 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 23:46:36,239 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 23:46:36,462 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 23:46:36,572 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 23:46:36,775 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 23:46:36,892 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 23:46:37,005 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 23:46:37,118 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 23:46:37,231 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 23:46:37,340 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 23:46:37,448 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 23:46:37,560 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 23:46:37,675 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 23:46:37,785 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 23:46:37,892 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 23:46:38,006 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 23:46:38,120 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 23:46:38,464 WARN L205 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-04-28 23:46:38,620 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 23:46:38,962 WARN L205 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-04-28 23:46:39,118 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 23:46:39,455 WARN L205 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-04-28 23:46:39,621 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-04-28 23:46:39,948 WARN L205 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-04-28 23:46:40,089 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-04-28 23:46:40,125 INFO L158 LiptonReduction]: Checked pairs total: 6642 [2021-04-28 23:46:40,126 INFO L160 LiptonReduction]: Total number of compositions: 93 [2021-04-28 23:46:40,130 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16266 [2021-04-28 23:46:40,153 INFO L129 PetriNetUnfolder]: 0/66 cut-off events. [2021-04-28 23:46:40,153 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:46:40,154 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:46:40,155 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:46:40,155 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:46:40,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:46:40,162 INFO L82 PathProgramCache]: Analyzing trace with hash 5128213, now seen corresponding path program 1 times [2021-04-28 23:46:40,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:46:40,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573881661] [2021-04-28 23:46:40,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:46:40,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:46:40,478 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-28 23:46:40,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:46:40,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:46:40,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573881661] [2021-04-28 23:46:40,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:46:40,507 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 23:46:40,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670880690] [2021-04-28 23:46:40,519 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 23:46:40,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:46:40,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 23:46:40,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 23:46:40,543 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 167 [2021-04-28 23:46:40,547 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 70 transitions, 149 flow. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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) [2021-04-28 23:46:40,548 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:46:40,548 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 167 [2021-04-28 23:46:40,550 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:46:40,824 INFO L129 PetriNetUnfolder]: 278/931 cut-off events. [2021-04-28 23:46:40,825 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:46:40,833 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1429 conditions, 931 events. 278/931 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 8419 event pairs, 101 based on Foata normal form. 0/513 useless extension candidates. Maximal degree in co-relation 1385. Up to 293 conditions per place. [2021-04-28 23:46:40,838 INFO L132 encePairwiseOnDemand]: 148/167 looper letters, 6 selfloop transitions, 6 changer transitions 36/80 dead transitions. [2021-04-28 23:46:40,839 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 80 transitions, 237 flow [2021-04-28 23:46:40,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 23:46:40,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 23:46:40,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 360 transitions. [2021-04-28 23:46:40,857 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.718562874251497 [2021-04-28 23:46:40,858 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 360 transitions. [2021-04-28 23:46:40,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 360 transitions. [2021-04-28 23:46:40,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:46:40,864 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 360 transitions. [2021-04-28 23:46:40,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:46:40,882 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 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) [2021-04-28 23:46:40,883 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 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) [2021-04-28 23:46:40,885 INFO L185 Difference]: Start difference. First operand has 80 places, 70 transitions, 149 flow. Second operand 3 states and 360 transitions. [2021-04-28 23:46:40,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 80 transitions, 237 flow [2021-04-28 23:46:40,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 80 transitions, 234 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-28 23:46:40,894 INFO L241 Difference]: Finished difference. Result has 81 places, 44 transitions, 130 flow [2021-04-28 23:46:40,897 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=81, PETRI_TRANSITIONS=44} [2021-04-28 23:46:40,898 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, 1 predicate places. [2021-04-28 23:46:40,899 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:46:40,899 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 44 transitions, 130 flow [2021-04-28 23:46:40,900 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 44 transitions, 130 flow [2021-04-28 23:46:40,900 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 44 transitions, 130 flow [2021-04-28 23:46:40,924 INFO L129 PetriNetUnfolder]: 45/220 cut-off events. [2021-04-28 23:46:40,924 INFO L130 PetriNetUnfolder]: For 13/15 co-relation queries the response was YES. [2021-04-28 23:46:40,925 INFO L84 FinitePrefix]: Finished finitePrefix Result has 369 conditions, 220 events. 45/220 cut-off events. For 13/15 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1405 event pairs, 19 based on Foata normal form. 0/138 useless extension candidates. Maximal degree in co-relation 360. Up to 62 conditions per place. [2021-04-28 23:46:40,930 INFO L146 LiptonReduction]: Number of co-enabled transitions 998 [2021-04-28 23:46:40,949 INFO L158 LiptonReduction]: Checked pairs total: 221 [2021-04-28 23:46:40,949 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:46:40,950 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 51 [2021-04-28 23:46:40,952 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 44 transitions, 130 flow [2021-04-28 23:46:40,952 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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) [2021-04-28 23:46:40,953 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:46:40,953 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:46:40,953 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 23:46:40,953 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:46:40,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:46:40,954 INFO L82 PathProgramCache]: Analyzing trace with hash 158972960, now seen corresponding path program 1 times [2021-04-28 23:46:40,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:46:40,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630500980] [2021-04-28 23:46:40,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:46:40,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:46:41,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:46:41,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:46:41,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:46:41,078 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630500980] [2021-04-28 23:46:41,079 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:46:41,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 23:46:41,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102150024] [2021-04-28 23:46:41,083 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 23:46:41,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:46:41,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 23:46:41,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 23:46:41,098 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 167 [2021-04-28 23:46:41,099 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 44 transitions, 130 flow. Second operand has 3 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 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) [2021-04-28 23:46:41,100 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:46:41,100 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 167 [2021-04-28 23:46:41,100 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:46:41,142 INFO L129 PetriNetUnfolder]: 36/191 cut-off events. [2021-04-28 23:46:41,143 INFO L130 PetriNetUnfolder]: For 38/42 co-relation queries the response was YES. [2021-04-28 23:46:41,144 INFO L84 FinitePrefix]: Finished finitePrefix Result has 339 conditions, 191 events. 36/191 cut-off events. For 38/42 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1135 event pairs, 14 based on Foata normal form. 1/121 useless extension candidates. Maximal degree in co-relation 328. Up to 49 conditions per place. [2021-04-28 23:46:41,146 INFO L132 encePairwiseOnDemand]: 164/167 looper letters, 1 selfloop transitions, 3 changer transitions 0/44 dead transitions. [2021-04-28 23:46:41,146 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 44 transitions, 138 flow [2021-04-28 23:46:41,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 23:46:41,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 23:46:41,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 373 transitions. [2021-04-28 23:46:41,155 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7445109780439122 [2021-04-28 23:46:41,155 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 373 transitions. [2021-04-28 23:46:41,155 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 373 transitions. [2021-04-28 23:46:41,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:46:41,156 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 373 transitions. [2021-04-28 23:46:41,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 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) [2021-04-28 23:46:41,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 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) [2021-04-28 23:46:41,166 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 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) [2021-04-28 23:46:41,166 INFO L185 Difference]: Start difference. First operand has 50 places, 44 transitions, 130 flow. Second operand 3 states and 373 transitions. [2021-04-28 23:46:41,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 44 transitions, 138 flow [2021-04-28 23:46:41,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 44 transitions, 126 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 23:46:41,175 INFO L241 Difference]: Finished difference. Result has 51 places, 44 transitions, 129 flow [2021-04-28 23:46:41,176 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=129, PETRI_PLACES=51, PETRI_TRANSITIONS=44} [2021-04-28 23:46:41,176 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -29 predicate places. [2021-04-28 23:46:41,177 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:46:41,184 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 44 transitions, 129 flow [2021-04-28 23:46:41,184 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 44 transitions, 129 flow [2021-04-28 23:46:41,185 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 44 transitions, 129 flow [2021-04-28 23:46:41,208 INFO L129 PetriNetUnfolder]: 36/199 cut-off events. [2021-04-28 23:46:41,208 INFO L130 PetriNetUnfolder]: For 14/18 co-relation queries the response was YES. [2021-04-28 23:46:41,209 INFO L84 FinitePrefix]: Finished finitePrefix Result has 313 conditions, 199 events. 36/199 cut-off events. For 14/18 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1262 event pairs, 15 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 303. Up to 49 conditions per place. [2021-04-28 23:46:41,213 INFO L146 LiptonReduction]: Number of co-enabled transitions 996 [2021-04-28 23:46:41,229 INFO L158 LiptonReduction]: Checked pairs total: 221 [2021-04-28 23:46:41,229 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:46:41,230 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 53 [2021-04-28 23:46:41,239 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 44 transitions, 129 flow [2021-04-28 23:46:41,240 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 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) [2021-04-28 23:46:41,240 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:46:41,240 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:46:41,240 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 23:46:41,240 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:46:41,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:46:41,241 INFO L82 PathProgramCache]: Analyzing trace with hash 158952624, now seen corresponding path program 1 times [2021-04-28 23:46:41,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:46:41,241 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271755595] [2021-04-28 23:46:41,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:46:41,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:46:41,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:46:41,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:46:41,362 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-28 23:46:41,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:46:41,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:46:41,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271755595] [2021-04-28 23:46:41,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:46:41,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:46:41,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311984475] [2021-04-28 23:46:41,381 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:46:41,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:46:41,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:46:41,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:46:41,384 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 167 [2021-04-28 23:46:41,386 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 44 transitions, 129 flow. Second operand has 4 states, 4 states have (on average 108.75) internal successors, (435), 4 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:46:41,386 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:46:41,386 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 167 [2021-04-28 23:46:41,386 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:46:41,442 INFO L129 PetriNetUnfolder]: 30/179 cut-off events. [2021-04-28 23:46:41,442 INFO L130 PetriNetUnfolder]: For 32/69 co-relation queries the response was YES. [2021-04-28 23:46:41,443 INFO L84 FinitePrefix]: Finished finitePrefix Result has 351 conditions, 179 events. 30/179 cut-off events. For 32/69 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1046 event pairs, 8 based on Foata normal form. 9/122 useless extension candidates. Maximal degree in co-relation 339. Up to 41 conditions per place. [2021-04-28 23:46:41,444 INFO L132 encePairwiseOnDemand]: 160/167 looper letters, 10 selfloop transitions, 9 changer transitions 0/51 dead transitions. [2021-04-28 23:46:41,445 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 51 transitions, 201 flow [2021-04-28 23:46:41,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:46:41,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:46:41,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 449 transitions. [2021-04-28 23:46:41,448 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6721556886227545 [2021-04-28 23:46:41,448 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 449 transitions. [2021-04-28 23:46:41,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 449 transitions. [2021-04-28 23:46:41,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:46:41,449 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 449 transitions. [2021-04-28 23:46:41,451 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 112.25) internal successors, (449), 4 states have internal predecessors, (449), 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) [2021-04-28 23:46:41,453 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 167.0) internal successors, (835), 5 states have internal predecessors, (835), 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) [2021-04-28 23:46:41,454 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 167.0) internal successors, (835), 5 states have internal predecessors, (835), 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) [2021-04-28 23:46:41,454 INFO L185 Difference]: Start difference. First operand has 51 places, 44 transitions, 129 flow. Second operand 4 states and 449 transitions. [2021-04-28 23:46:41,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 51 transitions, 201 flow [2021-04-28 23:46:41,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 51 transitions, 191 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 23:46:41,457 INFO L241 Difference]: Finished difference. Result has 54 places, 49 transitions, 180 flow [2021-04-28 23:46:41,457 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=123, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=180, PETRI_PLACES=54, PETRI_TRANSITIONS=49} [2021-04-28 23:46:41,458 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -26 predicate places. [2021-04-28 23:46:41,458 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:46:41,458 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 49 transitions, 180 flow [2021-04-28 23:46:41,458 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 49 transitions, 180 flow [2021-04-28 23:46:41,459 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 49 transitions, 180 flow [2021-04-28 23:46:41,478 INFO L129 PetriNetUnfolder]: 30/167 cut-off events. [2021-04-28 23:46:41,479 INFO L130 PetriNetUnfolder]: For 57/64 co-relation queries the response was YES. [2021-04-28 23:46:41,480 INFO L84 FinitePrefix]: Finished finitePrefix Result has 330 conditions, 167 events. 30/167 cut-off events. For 57/64 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 959 event pairs, 7 based on Foata normal form. 1/108 useless extension candidates. Maximal degree in co-relation 318. Up to 41 conditions per place. [2021-04-28 23:46:41,484 INFO L146 LiptonReduction]: Number of co-enabled transitions 1150 [2021-04-28 23:46:41,498 INFO L158 LiptonReduction]: Checked pairs total: 238 [2021-04-28 23:46:41,498 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:46:41,498 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 40 [2021-04-28 23:46:41,500 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 49 transitions, 180 flow [2021-04-28 23:46:41,501 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 108.75) internal successors, (435), 4 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:46:41,501 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:46:41,501 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:46:41,502 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 23:46:41,502 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:46:41,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:46:41,503 INFO L82 PathProgramCache]: Analyzing trace with hash 1877434295, now seen corresponding path program 1 times [2021-04-28 23:46:41,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:46:41,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040179270] [2021-04-28 23:46:41,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:46:41,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:46:41,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:46:41,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:46:41,568 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-28 23:46:41,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:46:41,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:46:41,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040179270] [2021-04-28 23:46:41,586 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:46:41,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:46:41,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442596127] [2021-04-28 23:46:41,587 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:46:41,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:46:41,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:46:41,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:46:41,590 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 167 [2021-04-28 23:46:41,591 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 49 transitions, 180 flow. Second operand has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 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) [2021-04-28 23:46:41,591 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:46:41,591 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 167 [2021-04-28 23:46:41,591 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:46:41,646 INFO L129 PetriNetUnfolder]: 23/146 cut-off events. [2021-04-28 23:46:41,646 INFO L130 PetriNetUnfolder]: For 71/115 co-relation queries the response was YES. [2021-04-28 23:46:41,647 INFO L84 FinitePrefix]: Finished finitePrefix Result has 346 conditions, 146 events. 23/146 cut-off events. For 71/115 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 809 event pairs, 1 based on Foata normal form. 10/102 useless extension candidates. Maximal degree in co-relation 332. Up to 35 conditions per place. [2021-04-28 23:46:41,648 INFO L132 encePairwiseOnDemand]: 160/167 looper letters, 14 selfloop transitions, 12 changer transitions 0/58 dead transitions. [2021-04-28 23:46:41,648 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 58 transitions, 288 flow [2021-04-28 23:46:41,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:46:41,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:46:41,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 450 transitions. [2021-04-28 23:46:41,651 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6736526946107785 [2021-04-28 23:46:41,651 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 450 transitions. [2021-04-28 23:46:41,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 450 transitions. [2021-04-28 23:46:41,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:46:41,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 450 transitions. [2021-04-28 23:46:41,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 112.5) internal successors, (450), 4 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:46:41,656 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 167.0) internal successors, (835), 5 states have internal predecessors, (835), 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) [2021-04-28 23:46:41,657 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 167.0) internal successors, (835), 5 states have internal predecessors, (835), 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) [2021-04-28 23:46:41,657 INFO L185 Difference]: Start difference. First operand has 54 places, 49 transitions, 180 flow. Second operand 4 states and 450 transitions. [2021-04-28 23:46:41,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 58 transitions, 288 flow [2021-04-28 23:46:41,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 58 transitions, 288 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 23:46:41,661 INFO L241 Difference]: Finished difference. Result has 60 places, 56 transitions, 284 flow [2021-04-28 23:46:41,662 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=284, PETRI_PLACES=60, PETRI_TRANSITIONS=56} [2021-04-28 23:46:41,662 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -20 predicate places. [2021-04-28 23:46:41,662 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:46:41,662 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 56 transitions, 284 flow [2021-04-28 23:46:41,663 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 56 transitions, 284 flow [2021-04-28 23:46:41,663 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 56 transitions, 284 flow [2021-04-28 23:46:41,682 INFO L129 PetriNetUnfolder]: 23/154 cut-off events. [2021-04-28 23:46:41,682 INFO L130 PetriNetUnfolder]: For 163/175 co-relation queries the response was YES. [2021-04-28 23:46:41,683 INFO L84 FinitePrefix]: Finished finitePrefix Result has 373 conditions, 154 events. 23/154 cut-off events. For 163/175 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 899 event pairs, 1 based on Foata normal form. 3/99 useless extension candidates. Maximal degree in co-relation 356. Up to 35 conditions per place. [2021-04-28 23:46:41,687 INFO L146 LiptonReduction]: Number of co-enabled transitions 1356 [2021-04-28 23:46:41,697 INFO L158 LiptonReduction]: Checked pairs total: 245 [2021-04-28 23:46:41,698 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:46:41,698 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 36 [2021-04-28 23:46:41,699 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 56 transitions, 284 flow [2021-04-28 23:46:41,700 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 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) [2021-04-28 23:46:41,700 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:46:41,700 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:46:41,701 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 23:46:41,701 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:46:41,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:46:41,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1123245711, now seen corresponding path program 1 times [2021-04-28 23:46:41,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:46:41,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274582483] [2021-04-28 23:46:41,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:46:41,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:46:41,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:46:41,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:46:41,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:46:41,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:46:41,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:46:41,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274582483] [2021-04-28 23:46:41,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:46:41,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:46:41,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554953006] [2021-04-28 23:46:41,762 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:46:41,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:46:41,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:46:41,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:46:41,764 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 167 [2021-04-28 23:46:41,765 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 56 transitions, 284 flow. Second operand has 4 states, 4 states have (on average 119.75) internal successors, (479), 4 states have internal predecessors, (479), 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) [2021-04-28 23:46:41,765 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:46:41,765 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 167 [2021-04-28 23:46:41,766 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:46:41,822 INFO L129 PetriNetUnfolder]: 25/173 cut-off events. [2021-04-28 23:46:41,822 INFO L130 PetriNetUnfolder]: For 289/298 co-relation queries the response was YES. [2021-04-28 23:46:41,824 INFO L84 FinitePrefix]: Finished finitePrefix Result has 436 conditions, 173 events. 25/173 cut-off events. For 289/298 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1050 event pairs, 2 based on Foata normal form. 13/119 useless extension candidates. Maximal degree in co-relation 417. Up to 35 conditions per place. [2021-04-28 23:46:41,825 INFO L132 encePairwiseOnDemand]: 163/167 looper letters, 1 selfloop transitions, 4 changer transitions 12/58 dead transitions. [2021-04-28 23:46:41,825 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 58 transitions, 317 flow [2021-04-28 23:46:41,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:46:41,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:46:41,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 483 transitions. [2021-04-28 23:46:41,828 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7230538922155688 [2021-04-28 23:46:41,829 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 483 transitions. [2021-04-28 23:46:41,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 483 transitions. [2021-04-28 23:46:41,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:46:41,830 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 483 transitions. [2021-04-28 23:46:41,832 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 120.75) internal successors, (483), 4 states have internal predecessors, (483), 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) [2021-04-28 23:46:41,834 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 167.0) internal successors, (835), 5 states have internal predecessors, (835), 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) [2021-04-28 23:46:41,835 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 167.0) internal successors, (835), 5 states have internal predecessors, (835), 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) [2021-04-28 23:46:41,836 INFO L185 Difference]: Start difference. First operand has 60 places, 56 transitions, 284 flow. Second operand 4 states and 483 transitions. [2021-04-28 23:46:41,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 58 transitions, 317 flow [2021-04-28 23:46:41,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 58 transitions, 317 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 23:46:41,842 INFO L241 Difference]: Finished difference. Result has 65 places, 46 transitions, 231 flow [2021-04-28 23:46:41,842 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=231, PETRI_PLACES=65, PETRI_TRANSITIONS=46} [2021-04-28 23:46:41,842 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -15 predicate places. [2021-04-28 23:46:41,842 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:46:41,843 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 46 transitions, 231 flow [2021-04-28 23:46:41,843 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 46 transitions, 231 flow [2021-04-28 23:46:41,844 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 46 transitions, 231 flow [2021-04-28 23:46:41,856 INFO L129 PetriNetUnfolder]: 9/89 cut-off events. [2021-04-28 23:46:41,856 INFO L130 PetriNetUnfolder]: For 131/137 co-relation queries the response was YES. [2021-04-28 23:46:41,857 INFO L84 FinitePrefix]: Finished finitePrefix Result has 233 conditions, 89 events. 9/89 cut-off events. For 131/137 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 417 event pairs, 0 based on Foata normal form. 1/53 useless extension candidates. Maximal degree in co-relation 212. Up to 16 conditions per place. [2021-04-28 23:46:41,859 INFO L146 LiptonReduction]: Number of co-enabled transitions 944 [2021-04-28 23:46:41,866 INFO L158 LiptonReduction]: Checked pairs total: 25 [2021-04-28 23:46:41,867 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:46:41,867 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 25 [2021-04-28 23:46:41,868 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 46 transitions, 231 flow [2021-04-28 23:46:41,869 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 119.75) internal successors, (479), 4 states have internal predecessors, (479), 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) [2021-04-28 23:46:41,869 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:46:41,869 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:46:41,869 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 23:46:41,869 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:46:41,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:46:41,870 INFO L82 PathProgramCache]: Analyzing trace with hash 347738340, now seen corresponding path program 1 times [2021-04-28 23:46:41,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:46:41,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791398880] [2021-04-28 23:46:41,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:46:41,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:46:41,934 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-28 23:46:41,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-28 23:46:41,943 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 23:46:41,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:46:41,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:46:41,958 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791398880] [2021-04-28 23:46:41,958 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:46:41,958 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:46:41,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089127084] [2021-04-28 23:46:41,959 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:46:41,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:46:41,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:46:41,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:46:41,961 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 167 [2021-04-28 23:46:41,962 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 46 transitions, 231 flow. Second operand has 4 states, 4 states have (on average 105.75) internal successors, (423), 4 states have internal predecessors, (423), 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) [2021-04-28 23:46:41,962 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:46:41,962 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 167 [2021-04-28 23:46:41,962 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:46:42,893 INFO L129 PetriNetUnfolder]: 3480/5976 cut-off events. [2021-04-28 23:46:42,894 INFO L130 PetriNetUnfolder]: For 1913/2551 co-relation queries the response was YES. [2021-04-28 23:46:42,934 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12337 conditions, 5976 events. 3480/5976 cut-off events. For 1913/2551 co-relation queries the response was YES. Maximal size of possible extension queue 1734. Compared 52117 event pairs, 1431 based on Foata normal form. 36/1416 useless extension candidates. Maximal degree in co-relation 12314. Up to 3697 conditions per place. [2021-04-28 23:46:42,961 INFO L132 encePairwiseOnDemand]: 149/167 looper letters, 30 selfloop transitions, 28 changer transitions 0/82 dead transitions. [2021-04-28 23:46:42,961 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 82 transitions, 419 flow [2021-04-28 23:46:42,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:46:42,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:46:42,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 581 transitions. [2021-04-28 23:46:42,965 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6958083832335329 [2021-04-28 23:46:42,965 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 581 transitions. [2021-04-28 23:46:42,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 581 transitions. [2021-04-28 23:46:42,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:46:42,966 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 581 transitions. [2021-04-28 23:46:42,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 116.2) internal successors, (581), 5 states have internal predecessors, (581), 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) [2021-04-28 23:46:42,972 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 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) [2021-04-28 23:46:42,975 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 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) [2021-04-28 23:46:42,976 INFO L185 Difference]: Start difference. First operand has 63 places, 46 transitions, 231 flow. Second operand 5 states and 581 transitions. [2021-04-28 23:46:42,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 82 transitions, 419 flow [2021-04-28 23:46:42,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 82 transitions, 373 flow, removed 3 selfloop flow, removed 8 redundant places. [2021-04-28 23:46:42,988 INFO L241 Difference]: Finished difference. Result has 62 places, 72 transitions, 396 flow [2021-04-28 23:46:42,989 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=396, PETRI_PLACES=62, PETRI_TRANSITIONS=72} [2021-04-28 23:46:42,989 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -18 predicate places. [2021-04-28 23:46:42,989 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:46:42,989 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 72 transitions, 396 flow [2021-04-28 23:46:42,990 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 72 transitions, 396 flow [2021-04-28 23:46:42,990 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 72 transitions, 396 flow [2021-04-28 23:46:43,693 INFO L129 PetriNetUnfolder]: 3246/5561 cut-off events. [2021-04-28 23:46:43,693 INFO L130 PetriNetUnfolder]: For 1969/6925 co-relation queries the response was YES. [2021-04-28 23:46:43,727 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15679 conditions, 5561 events. 3246/5561 cut-off events. For 1969/6925 co-relation queries the response was YES. Maximal size of possible extension queue 1553. Compared 48443 event pairs, 1342 based on Foata normal form. 4/1477 useless extension candidates. Maximal degree in co-relation 15660. Up to 4947 conditions per place. [2021-04-28 23:46:43,812 INFO L146 LiptonReduction]: Number of co-enabled transitions 1168 [2021-04-28 23:46:43,837 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:46:43,837 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:46:43,838 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 849 [2021-04-28 23:46:43,849 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 72 transitions, 396 flow [2021-04-28 23:46:43,849 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 105.75) internal successors, (423), 4 states have internal predecessors, (423), 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) [2021-04-28 23:46:43,849 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:46:43,850 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:46:43,850 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 23:46:43,850 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:46:43,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:46:43,851 INFO L82 PathProgramCache]: Analyzing trace with hash 1481477233, now seen corresponding path program 1 times [2021-04-28 23:46:43,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:46:43,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793041058] [2021-04-28 23:46:43,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:46:43,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:46:43,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:46:43,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:46:43,965 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-28 23:46:43,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-28 23:46:43,978 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 23:46:43,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:46:43,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:46:43,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793041058] [2021-04-28 23:46:43,999 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:46:43,999 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:46:44,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691080092] [2021-04-28 23:46:44,000 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:46:44,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:46:44,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:46:44,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:46:44,002 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 167 [2021-04-28 23:46:44,003 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 72 transitions, 396 flow. Second operand has 5 states, 5 states have (on average 105.8) internal successors, (529), 5 states have internal predecessors, (529), 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) [2021-04-28 23:46:44,004 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:46:44,004 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 167 [2021-04-28 23:46:44,004 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:46:45,346 INFO L129 PetriNetUnfolder]: 3075/6090 cut-off events. [2021-04-28 23:46:45,346 INFO L130 PetriNetUnfolder]: For 3389/21969 co-relation queries the response was YES. [2021-04-28 23:46:45,382 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23039 conditions, 6090 events. 3075/6090 cut-off events. For 3389/21969 co-relation queries the response was YES. Maximal size of possible extension queue 1944. Compared 60488 event pairs, 243 based on Foata normal form. 78/1829 useless extension candidates. Maximal degree in co-relation 23018. Up to 5364 conditions per place. [2021-04-28 23:46:45,412 INFO L132 encePairwiseOnDemand]: 149/167 looper letters, 19 selfloop transitions, 63 changer transitions 12/118 dead transitions. [2021-04-28 23:46:45,412 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 118 transitions, 837 flow [2021-04-28 23:46:45,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 23:46:45,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 23:46:45,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 815 transitions. [2021-04-28 23:46:45,417 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6971770744225834 [2021-04-28 23:46:45,417 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 815 transitions. [2021-04-28 23:46:45,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 815 transitions. [2021-04-28 23:46:45,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:46:45,419 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 815 transitions. [2021-04-28 23:46:45,421 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 116.42857142857143) internal successors, (815), 7 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:46:45,424 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 167.0) internal successors, (1336), 8 states have internal predecessors, (1336), 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) [2021-04-28 23:46:45,425 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 167.0) internal successors, (1336), 8 states have internal predecessors, (1336), 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) [2021-04-28 23:46:45,425 INFO L185 Difference]: Start difference. First operand has 62 places, 72 transitions, 396 flow. Second operand 7 states and 815 transitions. [2021-04-28 23:46:45,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 118 transitions, 837 flow [2021-04-28 23:46:45,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 118 transitions, 837 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 23:46:45,478 INFO L241 Difference]: Finished difference. Result has 71 places, 104 transitions, 813 flow [2021-04-28 23:46:45,478 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=813, PETRI_PLACES=71, PETRI_TRANSITIONS=104} [2021-04-28 23:46:45,479 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -9 predicate places. [2021-04-28 23:46:45,479 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:46:45,479 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 104 transitions, 813 flow [2021-04-28 23:46:45,479 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 104 transitions, 813 flow [2021-04-28 23:46:45,481 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 104 transitions, 813 flow [2021-04-28 23:46:46,212 INFO L129 PetriNetUnfolder]: 1734/4202 cut-off events. [2021-04-28 23:46:46,212 INFO L130 PetriNetUnfolder]: For 9278/32239 co-relation queries the response was YES. [2021-04-28 23:46:46,249 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18182 conditions, 4202 events. 1734/4202 cut-off events. For 9278/32239 co-relation queries the response was YES. Maximal size of possible extension queue 1401. Compared 48169 event pairs, 244 based on Foata normal form. 5/1062 useless extension candidates. Maximal degree in co-relation 18158. Up to 3621 conditions per place. [2021-04-28 23:46:46,331 INFO L146 LiptonReduction]: Number of co-enabled transitions 1496 [2021-04-28 23:46:46,364 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:46:46,364 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:46:46,364 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 885 [2021-04-28 23:46:46,366 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 104 transitions, 813 flow [2021-04-28 23:46:46,366 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 105.8) internal successors, (529), 5 states have internal predecessors, (529), 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) [2021-04-28 23:46:46,367 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:46:46,367 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:46:46,367 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 23:46:46,367 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:46:46,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:46:46,368 INFO L82 PathProgramCache]: Analyzing trace with hash -57264633, now seen corresponding path program 1 times [2021-04-28 23:46:46,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:46:46,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479676235] [2021-04-28 23:46:46,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:46:46,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:46:46,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:46:46,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:46:46,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:46:46,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:46:46,434 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-28 23:46:46,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-28 23:46:46,448 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 23:46:46,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:46:46,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:46:46,467 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479676235] [2021-04-28 23:46:46,467 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:46:46,467 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 23:46:46,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468409908] [2021-04-28 23:46:46,468 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 23:46:46,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:46:46,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 23:46:46,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 23:46:46,471 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 167 [2021-04-28 23:46:46,472 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 104 transitions, 813 flow. Second operand has 6 states, 6 states have (on average 105.83333333333333) internal successors, (635), 6 states have internal predecessors, (635), 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) [2021-04-28 23:46:46,473 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:46:46,473 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 167 [2021-04-28 23:46:46,473 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:46:47,634 INFO L129 PetriNetUnfolder]: 1617/4254 cut-off events. [2021-04-28 23:46:47,634 INFO L130 PetriNetUnfolder]: For 7143/58385 co-relation queries the response was YES. [2021-04-28 23:46:47,676 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22440 conditions, 4254 events. 1617/4254 cut-off events. For 7143/58385 co-relation queries the response was YES. Maximal size of possible extension queue 1530. Compared 49465 event pairs, 0 based on Foata normal form. 102/1259 useless extension candidates. Maximal degree in co-relation 22414. Up to 3564 conditions per place. [2021-04-28 23:46:47,687 INFO L132 encePairwiseOnDemand]: 149/167 looper letters, 0 selfloop transitions, 0 changer transitions 129/129 dead transitions. [2021-04-28 23:46:47,687 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 129 transitions, 1199 flow [2021-04-28 23:46:47,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 23:46:47,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 23:46:47,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1026 transitions. [2021-04-28 23:46:47,693 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6826347305389222 [2021-04-28 23:46:47,693 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1026 transitions. [2021-04-28 23:46:47,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1026 transitions. [2021-04-28 23:46:47,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:46:47,695 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1026 transitions. [2021-04-28 23:46:47,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 114.0) internal successors, (1026), 9 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:46:47,702 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 167.0) internal successors, (1670), 10 states have internal predecessors, (1670), 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) [2021-04-28 23:46:47,703 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 167.0) internal successors, (1670), 10 states have internal predecessors, (1670), 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) [2021-04-28 23:46:47,703 INFO L185 Difference]: Start difference. First operand has 71 places, 104 transitions, 813 flow. Second operand 9 states and 1026 transitions. [2021-04-28 23:46:47,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 129 transitions, 1199 flow [2021-04-28 23:46:48,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 129 transitions, 969 flow, removed 46 selfloop flow, removed 7 redundant places. [2021-04-28 23:46:48,245 INFO L241 Difference]: Finished difference. Result has 71 places, 0 transitions, 0 flow [2021-04-28 23:46:48,245 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=606, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=71, PETRI_TRANSITIONS=0} [2021-04-28 23:46:48,245 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -9 predicate places. [2021-04-28 23:46:48,246 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:46:48,246 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 0 transitions, 0 flow [2021-04-28 23:46:48,246 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 0 transitions, 0 flow [2021-04-28 23:46:48,246 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-28 23:46:48,247 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-28 23:46:48,247 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:46:48,247 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. [2021-04-28 23:46:48,247 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-28 23:46:48,248 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:46:48,248 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:46:48,248 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-28 23:46:48,249 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-28 23:46:48,250 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 105.83333333333333) internal successors, (635), 6 states have internal predecessors, (635), 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) [2021-04-28 23:46:48,250 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 23:46:48,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 11:46:48 BasicIcfg [2021-04-28 23:46:48,255 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-28 23:46:48,257 INFO L168 Benchmark]: Toolchain (without parser) took 26282.32 ms. Allocated memory was 302.0 MB in the beginning and 564.1 MB in the end (delta: 262.1 MB). Free memory was 275.5 MB in the beginning and 471.0 MB in the end (delta: -195.4 MB). Peak memory consumption was 71.0 MB. Max. memory is 16.0 GB. [2021-04-28 23:46:48,257 INFO L168 Benchmark]: CDTParser took 0.86 ms. Allocated memory is still 302.0 MB. Free memory is still 286.9 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 23:46:48,257 INFO L168 Benchmark]: CACSL2BoogieTranslator took 824.15 ms. Allocated memory is still 302.0 MB. Free memory was 272.4 MB in the beginning and 270.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 24.6 MB. Max. memory is 16.0 GB. [2021-04-28 23:46:48,258 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.50 ms. Allocated memory is still 302.0 MB. Free memory was 270.3 MB in the beginning and 268.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-28 23:46:48,258 INFO L168 Benchmark]: Boogie Preprocessor took 28.55 ms. Allocated memory is still 302.0 MB. Free memory was 268.3 MB in the beginning and 267.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 23:46:48,259 INFO L168 Benchmark]: RCFGBuilder took 628.81 ms. Allocated memory is still 302.0 MB. Free memory was 267.0 MB in the beginning and 244.6 MB in the end (delta: 22.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-04-28 23:46:48,259 INFO L168 Benchmark]: TraceAbstraction took 24682.59 ms. Allocated memory was 302.0 MB in the beginning and 564.1 MB in the end (delta: 262.1 MB). Free memory was 244.6 MB in the beginning and 471.0 MB in the end (delta: -226.4 MB). Peak memory consumption was 36.0 MB. Max. memory is 16.0 GB. [2021-04-28 23:46:48,261 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.86 ms. Allocated memory is still 302.0 MB. Free memory is still 286.9 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 824.15 ms. Allocated memory is still 302.0 MB. Free memory was 272.4 MB in the beginning and 270.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 24.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 77.50 ms. Allocated memory is still 302.0 MB. Free memory was 270.3 MB in the beginning and 268.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.55 ms. Allocated memory is still 302.0 MB. Free memory was 268.3 MB in the beginning and 267.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 628.81 ms. Allocated memory is still 302.0 MB. Free memory was 267.0 MB in the beginning and 244.6 MB in the end (delta: 22.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 24682.59 ms. Allocated memory was 302.0 MB in the beginning and 564.1 MB in the end (delta: 262.1 MB). Free memory was 244.6 MB in the beginning and 471.0 MB in the end (delta: -226.4 MB). Peak memory consumption was 36.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16230.2ms, 68 PlacesBefore, 80 PlacesAfterwards, 59 TransitionsBefore, 70 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 7 FixpointIterations, 47 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 93 TotalNumberOfCompositions, 6642 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2255, positive: 2055, positive conditional: 2055, positive unconditional: 0, negative: 200, negative conditional: 200, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 980, positive: 913, positive conditional: 0, positive unconditional: 913, negative: 67, negative conditional: 0, negative unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 980, positive: 913, positive conditional: 0, positive unconditional: 913, negative: 67, negative conditional: 0, negative unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 980, positive: 891, positive conditional: 0, positive unconditional: 891, negative: 89, negative conditional: 0, negative unconditional: 89, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 89, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 67, negative conditional: 0, negative unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 745, positive: 189, positive conditional: 0, positive unconditional: 189, negative: 556, negative conditional: 0, negative unconditional: 556, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2255, positive: 1142, positive conditional: 1142, positive unconditional: 0, negative: 133, negative conditional: 133, negative unconditional: 0, unknown: 980, unknown conditional: 980, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 973, Positive cache size: 906, Positive conditional cache size: 906, Positive unconditional cache size: 0, Negative cache size: 67, Negative conditional cache size: 67, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 49.9ms, 81 PlacesBefore, 50 PlacesAfterwards, 44 TransitionsBefore, 44 TransitionsAfterwards, 998 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 221 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 61, positive: 54, positive conditional: 54, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 10, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 61, positive: 52, positive conditional: 52, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 976, Positive cache size: 908, Positive conditional cache size: 908, Positive unconditional cache size: 0, Negative cache size: 68, Negative conditional cache size: 68, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 45.2ms, 51 PlacesBefore, 51 PlacesAfterwards, 44 TransitionsBefore, 44 TransitionsAfterwards, 996 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 221 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 26, positive: 19, positive conditional: 19, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 10, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 10, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 8, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 26, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 10, unknown conditional: 10, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 986, Positive cache size: 917, Positive conditional cache size: 917, 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: 39.8ms, 54 PlacesBefore, 54 PlacesAfterwards, 49 TransitionsBefore, 49 TransitionsAfterwards, 1150 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 238 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 33, positive: 26, positive conditional: 26, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 1, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 1, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 33, positive: 23, positive conditional: 23, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 990, Positive cache size: 920, Positive conditional cache size: 920, 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: 35.1ms, 60 PlacesBefore, 60 PlacesAfterwards, 56 TransitionsBefore, 56 TransitionsAfterwards, 1356 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 245 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 37, positive: 30, positive conditional: 30, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 2, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 2, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 37, positive: 26, positive conditional: 26, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 994, Positive cache size: 924, Positive conditional cache size: 924, 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: 23.8ms, 65 PlacesBefore, 63 PlacesAfterwards, 46 TransitionsBefore, 46 TransitionsAfterwards, 944 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 25 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 3, 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: 1, positive: 1, positive conditional: 1, 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: 1, positive: 1, positive conditional: 1, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 995, Positive cache size: 925, Positive conditional cache size: 925, 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: 847.6ms, 62 PlacesBefore, 62 PlacesAfterwards, 72 TransitionsBefore, 72 TransitionsAfterwards, 1168 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): 995, Positive cache size: 925, Positive conditional cache size: 925, 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: 884.8ms, 71 PlacesBefore, 71 PlacesAfterwards, 104 TransitionsBefore, 104 TransitionsAfterwards, 1496 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): 995, Positive cache size: 925, Positive conditional cache size: 925, 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: 1.5ms, 71 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): 995, Positive cache size: 925, Positive conditional cache size: 925, 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 4 procedures, 73 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 13.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 24525.7ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 4964.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 16407.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 73 SDtfs, 64 SDslu, 20 SDs, 0 SdLazy, 320 SolverSat, 135 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 627.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 247.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=813occurred in iteration=7, InterpolantAutomatonStates: 39, 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: 26.5ms SsaConstructionTime, 215.6ms SatisfiabilityAnalysisTime, 667.2ms InterpolantComputationTime, 87 NumberOfCodeBlocks, 87 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 79 ConstructedInterpolants, 0 QuantifiedInterpolants, 356 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...