/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-RepeatedVariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix044_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 04:45:54,970 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 04:45:54,973 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 04:45:55,024 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 04:45:55,024 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 04:45:55,027 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 04:45:55,029 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 04:45:55,034 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 04:45:55,036 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 04:45:55,040 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 04:45:55,041 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 04:45:55,042 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 04:45:55,042 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 04:45:55,044 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 04:45:55,045 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 04:45:55,046 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 04:45:55,048 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 04:45:55,049 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 04:45:55,051 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 04:45:55,058 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 04:45:55,059 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 04:45:55,060 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 04:45:55,061 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 04:45:55,063 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 04:45:55,068 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-25 04:45:55,076 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 04:45:55,076 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 04:45:55,077 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 04:45:55,080 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-RepeatedVariableLbe.epf [2021-03-25 04:45:55,099 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 04:45:55,099 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 04:45:55,100 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 04:45:55,100 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 04:45:55,100 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 04:45:55,100 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 04:45:55,101 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 04:45:55,101 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 04:45:55,101 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 04:45:55,101 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 04:45:55,101 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 04:45:55,101 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 04:45:55,102 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 04:45:55,102 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 04:45:55,102 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 04:45:55,102 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 04:45:55,102 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 04:45:55,102 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 04:45:55,102 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 04:45:55,103 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 04:45:55,103 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 04:45:55,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 04:45:55,103 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 04:45:55,103 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 04:45:55,103 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 04:45:55,103 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 04:45:55,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 04:45:55,104 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-25 04:45:55,104 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 04:45:55,104 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 04:45:55,104 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 04:45:55,380 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 04:45:55,405 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 04:45:55,407 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 04:45:55,408 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 04:45:55,409 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 04:45:55,409 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix044_rmo.opt.i [2021-03-25 04:45:55,474 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/470237109/3e7ea4e331b844268819d6eb6c31410d/FLAG86ec4c05d [2021-03-25 04:45:56,071 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 04:45:56,071 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix044_rmo.opt.i [2021-03-25 04:45:56,087 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/470237109/3e7ea4e331b844268819d6eb6c31410d/FLAG86ec4c05d [2021-03-25 04:45:56,462 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/470237109/3e7ea4e331b844268819d6eb6c31410d [2021-03-25 04:45:56,465 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 04:45:56,467 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 04:45:56,470 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 04:45:56,470 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 04:45:56,473 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 04:45:56,473 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 04:45:56" (1/1) ... [2021-03-25 04:45:56,474 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@190cfb04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:45:56, skipping insertion in model container [2021-03-25 04:45:56,474 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 04:45:56" (1/1) ... [2021-03-25 04:45:56,480 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 04:45:56,528 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 04:45:56,722 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/mix044_rmo.opt.i[948,961] [2021-03-25 04:45:56,938 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 04:45:56,947 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 04:45:56,957 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/mix044_rmo.opt.i[948,961] [2021-03-25 04:45:57,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 04:45:57,059 INFO L208 MainTranslator]: Completed translation [2021-03-25 04:45:57,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:45:57 WrapperNode [2021-03-25 04:45:57,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 04:45:57,060 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 04:45:57,060 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 04:45:57,060 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 04:45:57,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:45:57" (1/1) ... [2021-03-25 04:45:57,080 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:45:57" (1/1) ... [2021-03-25 04:45:57,104 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 04:45:57,105 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 04:45:57,105 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 04:45:57,105 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 04:45:57,112 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:45:57" (1/1) ... [2021-03-25 04:45:57,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:45:57" (1/1) ... [2021-03-25 04:45:57,118 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:45:57" (1/1) ... [2021-03-25 04:45:57,118 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:45:57" (1/1) ... [2021-03-25 04:45:57,125 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:45:57" (1/1) ... [2021-03-25 04:45:57,127 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:45:57" (1/1) ... [2021-03-25 04:45:57,130 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:45:57" (1/1) ... [2021-03-25 04:45:57,147 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 04:45:57,148 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 04:45:57,148 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 04:45:57,148 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 04:45:57,148 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:45:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 04:45:57,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 04:45:57,225 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 04:45:57,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 04:45:57,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 04:45:57,226 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-25 04:45:57,226 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-25 04:45:57,228 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-25 04:45:57,228 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-25 04:45:57,228 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-25 04:45:57,228 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-25 04:45:57,228 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-03-25 04:45:57,229 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-03-25 04:45:57,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 04:45:57,229 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 04:45:57,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 04:45:57,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 04:45:57,231 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 04:45:58,915 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 04:45:58,915 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-25 04:45:58,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 04:45:58 BoogieIcfgContainer [2021-03-25 04:45:58,918 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 04:45:58,921 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 04:45:58,921 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 04:45:58,923 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 04:45:58,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 04:45:56" (1/3) ... [2021-03-25 04:45:58,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13a53927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 04:45:58, skipping insertion in model container [2021-03-25 04:45:58,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:45:57" (2/3) ... [2021-03-25 04:45:58,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13a53927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 04:45:58, skipping insertion in model container [2021-03-25 04:45:58,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 04:45:58" (3/3) ... [2021-03-25 04:45:58,926 INFO L111 eAbstractionObserver]: Analyzing ICFG mix044_rmo.opt.i [2021-03-25 04:45:58,931 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 04:45:58,935 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-25 04:45:58,935 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 04:45:58,980 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,981 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,981 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,981 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,981 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,981 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,981 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,982 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,982 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,982 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,982 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,982 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,982 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,983 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,983 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,983 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,983 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,983 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,983 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,983 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,983 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,984 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,984 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,984 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,984 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,984 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,984 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,985 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,985 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,985 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,985 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,985 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,985 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,985 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,986 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,986 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,986 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,986 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,986 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,986 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,986 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,986 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,987 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,987 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,987 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,987 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,987 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,987 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,987 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,988 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,988 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,988 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,988 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,988 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,988 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,988 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,988 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,989 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,989 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,989 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,989 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,989 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,989 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,989 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,990 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,990 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,990 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,990 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,990 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,990 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,990 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,990 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,991 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,991 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,991 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,991 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,991 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,991 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,991 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,991 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,992 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,992 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,992 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,992 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,994 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,994 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,994 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,994 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,996 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,996 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,996 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,996 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,997 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,997 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,997 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,997 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,997 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,998 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,998 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,998 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,998 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:58,998 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:59,000 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:59,000 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:59,000 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:59,000 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:59,000 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:59,000 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:59,000 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:59,001 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:59,001 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:59,001 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:59,001 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:59,001 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:45:59,002 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 04:45:59,017 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-03-25 04:45:59,033 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 04:45:59,033 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 04:45:59,033 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 04:45:59,033 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 04:45:59,033 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 04:45:59,033 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 04:45:59,033 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 04:45:59,033 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 04:45:59,042 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 128 places, 117 transitions, 254 flow [2021-03-25 04:45:59,075 INFO L129 PetriNetUnfolder]: 2/113 cut-off events. [2021-03-25 04:45:59,076 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:45:59,079 INFO L84 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 113 events. 2/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 87 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2021-03-25 04:45:59,080 INFO L82 GeneralOperation]: Start removeDead. Operand has 128 places, 117 transitions, 254 flow [2021-03-25 04:45:59,083 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 124 places, 113 transitions, 238 flow [2021-03-25 04:45:59,085 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:45:59,091 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 124 places, 113 transitions, 238 flow [2021-03-25 04:45:59,093 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 124 places, 113 transitions, 238 flow [2021-03-25 04:45:59,095 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 124 places, 113 transitions, 238 flow [2021-03-25 04:45:59,113 INFO L129 PetriNetUnfolder]: 2/113 cut-off events. [2021-03-25 04:45:59,114 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:45:59,114 INFO L84 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 113 events. 2/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 82 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2021-03-25 04:45:59,117 INFO L142 LiptonReduction]: Number of co-enabled transitions 2598 [2021-03-25 04:46:00,200 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-25 04:46:00,620 WARN L205 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 86 [2021-03-25 04:46:00,761 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-03-25 04:46:01,797 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 230 DAG size of output: 189 [2021-03-25 04:46:02,043 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-03-25 04:46:03,306 WARN L205 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-03-25 04:46:03,861 WARN L205 SmtUtils]: Spent 553.00 ms on a formula simplification that was a NOOP. DAG size: 267 [2021-03-25 04:46:04,869 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-03-25 04:46:05,131 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-03-25 04:46:05,791 WARN L205 SmtUtils]: Spent 657.00 ms on a formula simplification that was a NOOP. DAG size: 269 [2021-03-25 04:46:06,383 WARN L205 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 269 [2021-03-25 04:46:06,585 INFO L154 LiptonReduction]: Checked pairs total: 4166 [2021-03-25 04:46:06,585 INFO L156 LiptonReduction]: Total number of compositions: 74 [2021-03-25 04:46:06,587 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7503 [2021-03-25 04:46:06,595 INFO L129 PetriNetUnfolder]: 0/32 cut-off events. [2021-03-25 04:46:06,595 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:46:06,595 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:06,596 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:46:06,596 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:06,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:06,600 INFO L82 PathProgramCache]: Analyzing trace with hash 1459371111, now seen corresponding path program 1 times [2021-03-25 04:46:06,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:06,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408712626] [2021-03-25 04:46:06,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:06,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:46:06,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:06,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:46:06,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:06,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:06,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:46:06,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408712626] [2021-03-25 04:46:06,890 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:46:06,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:46:06,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939174758] [2021-03-25 04:46:06,899 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:46:06,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:46:06,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:46:06,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:46:06,912 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 191 [2021-03-25 04:46:06,917 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 48 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:06,917 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:46:06,917 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 191 [2021-03-25 04:46:06,918 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:46:07,004 INFO L129 PetriNetUnfolder]: 23/111 cut-off events. [2021-03-25 04:46:07,004 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:46:07,007 INFO L84 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 111 events. 23/111 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 394 event pairs, 3 based on Foata normal form. 6/110 useless extension candidates. Maximal degree in co-relation 148. Up to 37 conditions per place. [2021-03-25 04:46:07,008 INFO L132 encePairwiseOnDemand]: 187/191 looper letters, 7 selfloop transitions, 2 changer transitions 5/49 dead transitions. [2021-03-25 04:46:07,008 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 49 transitions, 132 flow [2021-03-25 04:46:07,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:46:07,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:46:07,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 524 transitions. [2021-03-25 04:46:07,027 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9144851657940664 [2021-03-25 04:46:07,028 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 524 transitions. [2021-03-25 04:46:07,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 524 transitions. [2021-03-25 04:46:07,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:46:07,033 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 524 transitions. [2021-03-25 04:46:07,039 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:07,050 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 191.0) internal successors, (764), 4 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:07,051 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 191.0) internal successors, (764), 4 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:07,052 INFO L185 Difference]: Start difference. First operand has 60 places, 48 transitions, 108 flow. Second operand 3 states and 524 transitions. [2021-03-25 04:46:07,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 49 transitions, 132 flow [2021-03-25 04:46:07,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 49 transitions, 128 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-25 04:46:07,056 INFO L241 Difference]: Finished difference. Result has 56 places, 41 transitions, 94 flow [2021-03-25 04:46:07,058 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=56, PETRI_TRANSITIONS=41} [2021-03-25 04:46:07,059 INFO L343 CegarLoopForPetriNet]: 60 programPoint places, -4 predicate places. [2021-03-25 04:46:07,059 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:07,059 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 41 transitions, 94 flow [2021-03-25 04:46:07,060 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 41 transitions, 94 flow [2021-03-25 04:46:07,061 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 52 places, 41 transitions, 94 flow [2021-03-25 04:46:07,076 INFO L129 PetriNetUnfolder]: 0/41 cut-off events. [2021-03-25 04:46:07,076 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:46:07,076 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 41 events. 0/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 38 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-25 04:46:07,076 INFO L142 LiptonReduction]: Number of co-enabled transitions 392 [2021-03-25 04:46:07,448 WARN L205 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-03-25 04:46:07,768 WARN L205 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-03-25 04:46:08,379 WARN L205 SmtUtils]: Spent 608.00 ms on a formula simplification that was a NOOP. DAG size: 270 [2021-03-25 04:46:09,000 WARN L205 SmtUtils]: Spent 609.00 ms on a formula simplification that was a NOOP. DAG size: 270 [2021-03-25 04:46:09,653 INFO L154 LiptonReduction]: Checked pairs total: 1348 [2021-03-25 04:46:09,654 INFO L156 LiptonReduction]: Total number of compositions: 11 [2021-03-25 04:46:09,654 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2595 [2021-03-25 04:46:09,654 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 30 transitions, 72 flow [2021-03-25 04:46:09,655 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:09,655 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:09,655 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:46:09,655 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 04:46:09,655 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:09,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:09,657 INFO L82 PathProgramCache]: Analyzing trace with hash -1826671133, now seen corresponding path program 1 times [2021-03-25 04:46:09,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:09,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905438394] [2021-03-25 04:46:09,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:09,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:46:09,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:09,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:46:09,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:09,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:09,818 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-25 04:46:09,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 04:46:09,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:46:09,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905438394] [2021-03-25 04:46:09,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:46:09,823 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:46:09,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497240715] [2021-03-25 04:46:09,825 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:46:09,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:46:09,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:46:09,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:46:09,834 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 202 [2021-03-25 04:46:09,836 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 30 transitions, 72 flow. Second operand has 4 states, 4 states have (on average 179.75) internal successors, (719), 4 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:09,836 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:46:09,836 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 202 [2021-03-25 04:46:09,836 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:46:09,853 INFO L129 PetriNetUnfolder]: 3/40 cut-off events. [2021-03-25 04:46:09,853 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:46:09,853 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 40 events. 3/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 76 event pairs, 1 based on Foata normal form. 1/38 useless extension candidates. Maximal degree in co-relation 51. Up to 10 conditions per place. [2021-03-25 04:46:09,854 INFO L132 encePairwiseOnDemand]: 198/202 looper letters, 3 selfloop transitions, 3 changer transitions 0/32 dead transitions. [2021-03-25 04:46:09,854 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 32 transitions, 88 flow [2021-03-25 04:46:09,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:46:09,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:46:09,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 544 transitions. [2021-03-25 04:46:09,856 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8976897689768977 [2021-03-25 04:46:09,856 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 544 transitions. [2021-03-25 04:46:09,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 544 transitions. [2021-03-25 04:46:09,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:46:09,856 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 544 transitions. [2021-03-25 04:46:09,858 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 181.33333333333334) internal successors, (544), 3 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:09,859 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:09,859 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:09,859 INFO L185 Difference]: Start difference. First operand has 41 places, 30 transitions, 72 flow. Second operand 3 states and 544 transitions. [2021-03-25 04:46:09,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 32 transitions, 88 flow [2021-03-25 04:46:09,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 32 transitions, 84 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 04:46:09,861 INFO L241 Difference]: Finished difference. Result has 42 places, 32 transitions, 87 flow [2021-03-25 04:46:09,861 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=87, PETRI_PLACES=42, PETRI_TRANSITIONS=32} [2021-03-25 04:46:09,861 INFO L343 CegarLoopForPetriNet]: 60 programPoint places, -18 predicate places. [2021-03-25 04:46:09,861 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:09,862 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 32 transitions, 87 flow [2021-03-25 04:46:09,862 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 32 transitions, 87 flow [2021-03-25 04:46:09,862 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 32 transitions, 87 flow [2021-03-25 04:46:09,867 INFO L129 PetriNetUnfolder]: 3/38 cut-off events. [2021-03-25 04:46:09,867 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:46:09,867 INFO L84 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 38 events. 3/38 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 73 event pairs, 1 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 50. Up to 10 conditions per place. [2021-03-25 04:46:09,868 INFO L142 LiptonReduction]: Number of co-enabled transitions 420 [2021-03-25 04:46:10,645 WARN L205 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 124 [2021-03-25 04:46:10,827 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2021-03-25 04:46:11,144 WARN L205 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 124 [2021-03-25 04:46:11,293 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2021-03-25 04:46:11,297 INFO L154 LiptonReduction]: Checked pairs total: 1185 [2021-03-25 04:46:11,298 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 04:46:11,298 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1437 [2021-03-25 04:46:11,298 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 29 transitions, 81 flow [2021-03-25 04:46:11,299 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 179.75) internal successors, (719), 4 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:11,299 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:11,299 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:46:11,299 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 04:46:11,299 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:11,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:11,300 INFO L82 PathProgramCache]: Analyzing trace with hash 2131944862, now seen corresponding path program 1 times [2021-03-25 04:46:11,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:11,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808301043] [2021-03-25 04:46:11,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:11,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:46:11,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:11,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:11,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:46:11,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808301043] [2021-03-25 04:46:11,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:46:11,357 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-25 04:46:11,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479707936] [2021-03-25 04:46:11,358 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:46:11,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:46:11,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:46:11,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:46:11,359 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 205 [2021-03-25 04:46:11,359 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 29 transitions, 81 flow. Second operand has 3 states, 3 states have (on average 184.66666666666666) internal successors, (554), 3 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:11,360 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:46:11,360 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 205 [2021-03-25 04:46:11,360 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:46:11,374 INFO L129 PetriNetUnfolder]: 3/37 cut-off events. [2021-03-25 04:46:11,374 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-03-25 04:46:11,374 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 37 events. 3/37 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 74 event pairs, 1 based on Foata normal form. 1/35 useless extension candidates. Maximal degree in co-relation 56. Up to 10 conditions per place. [2021-03-25 04:46:11,374 INFO L132 encePairwiseOnDemand]: 202/205 looper letters, 1 selfloop transitions, 2 changer transitions 0/29 dead transitions. [2021-03-25 04:46:11,375 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 29 transitions, 87 flow [2021-03-25 04:46:11,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:46:11,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:46:11,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 556 transitions. [2021-03-25 04:46:11,377 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9040650406504065 [2021-03-25 04:46:11,377 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 556 transitions. [2021-03-25 04:46:11,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 556 transitions. [2021-03-25 04:46:11,377 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:46:11,377 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 556 transitions. [2021-03-25 04:46:11,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 185.33333333333334) internal successors, (556), 3 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:11,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:11,380 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:11,381 INFO L185 Difference]: Start difference. First operand has 39 places, 29 transitions, 81 flow. Second operand 3 states and 556 transitions. [2021-03-25 04:46:11,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 29 transitions, 87 flow [2021-03-25 04:46:11,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 29 transitions, 84 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 04:46:11,382 INFO L241 Difference]: Finished difference. Result has 41 places, 29 transitions, 86 flow [2021-03-25 04:46:11,382 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=41, PETRI_TRANSITIONS=29} [2021-03-25 04:46:11,382 INFO L343 CegarLoopForPetriNet]: 60 programPoint places, -19 predicate places. [2021-03-25 04:46:11,382 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:11,382 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 29 transitions, 86 flow [2021-03-25 04:46:11,383 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 29 transitions, 86 flow [2021-03-25 04:46:11,383 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 29 transitions, 86 flow [2021-03-25 04:46:11,387 INFO L129 PetriNetUnfolder]: 3/35 cut-off events. [2021-03-25 04:46:11,387 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-25 04:46:11,387 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 35 events. 3/35 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 1 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 53. Up to 10 conditions per place. [2021-03-25 04:46:11,388 INFO L142 LiptonReduction]: Number of co-enabled transitions 416 [2021-03-25 04:46:11,512 INFO L154 LiptonReduction]: Checked pairs total: 710 [2021-03-25 04:46:11,513 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 04:46:11,513 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 131 [2021-03-25 04:46:11,513 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 28 transitions, 84 flow [2021-03-25 04:46:11,514 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 184.66666666666666) internal successors, (554), 3 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:11,514 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:11,514 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:46:11,514 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 04:46:11,514 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:11,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:11,515 INFO L82 PathProgramCache]: Analyzing trace with hash -1277391357, now seen corresponding path program 1 times [2021-03-25 04:46:11,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:11,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783658129] [2021-03-25 04:46:11,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:11,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:46:11,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:11,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 04:46:11,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:11,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 04:46:11,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:11,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:46:11,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:46:11,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783658129] [2021-03-25 04:46:11,592 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:46:11,592 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:46:11,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630147819] [2021-03-25 04:46:11,593 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:46:11,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:46:11,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:46:11,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:46:11,594 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 206 [2021-03-25 04:46:11,595 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 28 transitions, 84 flow. Second operand has 5 states, 5 states have (on average 163.8) internal successors, (819), 5 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:11,595 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:46:11,595 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 206 [2021-03-25 04:46:11,596 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:46:11,684 INFO L129 PetriNetUnfolder]: 37/112 cut-off events. [2021-03-25 04:46:11,684 INFO L130 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2021-03-25 04:46:11,685 INFO L84 FinitePrefix]: Finished finitePrefix Result has 242 conditions, 112 events. 37/112 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 377 event pairs, 22 based on Foata normal form. 1/102 useless extension candidates. Maximal degree in co-relation 230. Up to 55 conditions per place. [2021-03-25 04:46:11,686 INFO L132 encePairwiseOnDemand]: 201/206 looper letters, 8 selfloop transitions, 5 changer transitions 0/34 dead transitions. [2021-03-25 04:46:11,686 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 34 transitions, 125 flow [2021-03-25 04:46:11,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:46:11,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:46:11,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 666 transitions. [2021-03-25 04:46:11,689 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.808252427184466 [2021-03-25 04:46:11,689 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 666 transitions. [2021-03-25 04:46:11,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 666 transitions. [2021-03-25 04:46:11,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:46:11,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 666 transitions. [2021-03-25 04:46:11,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 166.5) internal successors, (666), 4 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:11,692 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 206.0) internal successors, (1030), 5 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:11,693 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 206.0) internal successors, (1030), 5 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:11,693 INFO L185 Difference]: Start difference. First operand has 40 places, 28 transitions, 84 flow. Second operand 4 states and 666 transitions. [2021-03-25 04:46:11,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 34 transitions, 125 flow [2021-03-25 04:46:11,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 34 transitions, 119 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 04:46:11,694 INFO L241 Difference]: Finished difference. Result has 43 places, 32 transitions, 113 flow [2021-03-25 04:46:11,695 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=113, PETRI_PLACES=43, PETRI_TRANSITIONS=32} [2021-03-25 04:46:11,695 INFO L343 CegarLoopForPetriNet]: 60 programPoint places, -17 predicate places. [2021-03-25 04:46:11,695 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:11,695 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 32 transitions, 113 flow [2021-03-25 04:46:11,695 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 32 transitions, 113 flow [2021-03-25 04:46:11,695 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 43 places, 32 transitions, 113 flow [2021-03-25 04:46:11,705 INFO L129 PetriNetUnfolder]: 11/55 cut-off events. [2021-03-25 04:46:11,705 INFO L130 PetriNetUnfolder]: For 34/37 co-relation queries the response was YES. [2021-03-25 04:46:11,706 INFO L84 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 55 events. 11/55 cut-off events. For 34/37 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 153 event pairs, 5 based on Foata normal form. 1/49 useless extension candidates. Maximal degree in co-relation 111. Up to 20 conditions per place. [2021-03-25 04:46:11,707 INFO L142 LiptonReduction]: Number of co-enabled transitions 468 [2021-03-25 04:46:11,709 INFO L154 LiptonReduction]: Checked pairs total: 329 [2021-03-25 04:46:11,709 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:46:11,710 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-03-25 04:46:11,712 INFO L480 AbstractCegarLoop]: Abstraction has has 43 places, 32 transitions, 113 flow [2021-03-25 04:46:11,713 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 163.8) internal successors, (819), 5 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:11,713 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:11,713 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:46:11,713 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 04:46:11,713 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:11,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:11,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1594224641, now seen corresponding path program 1 times [2021-03-25 04:46:11,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:11,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116988770] [2021-03-25 04:46:11,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:11,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:46:11,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:11,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 04:46:11,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:11,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 04:46:11,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:11,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 04:46:11,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:11,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 04:46:11,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:46:11,886 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116988770] [2021-03-25 04:46:11,886 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:46:11,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:46:11,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030993159] [2021-03-25 04:46:11,887 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:46:11,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:46:11,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:46:11,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:46:11,892 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 206 [2021-03-25 04:46:11,893 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 32 transitions, 113 flow. Second operand has 6 states, 6 states have (on average 167.83333333333334) internal successors, (1007), 6 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:11,893 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:46:11,893 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 206 [2021-03-25 04:46:11,893 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:46:11,992 INFO L129 PetriNetUnfolder]: 41/123 cut-off events. [2021-03-25 04:46:11,992 INFO L130 PetriNetUnfolder]: For 87/87 co-relation queries the response was YES. [2021-03-25 04:46:11,992 INFO L84 FinitePrefix]: Finished finitePrefix Result has 314 conditions, 123 events. 41/123 cut-off events. For 87/87 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 450 event pairs, 6 based on Foata normal form. 2/114 useless extension candidates. Maximal degree in co-relation 300. Up to 51 conditions per place. [2021-03-25 04:46:11,994 INFO L132 encePairwiseOnDemand]: 199/206 looper letters, 10 selfloop transitions, 11 changer transitions 0/42 dead transitions. [2021-03-25 04:46:11,994 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 42 transitions, 186 flow [2021-03-25 04:46:11,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:46:11,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:46:11,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 853 transitions. [2021-03-25 04:46:11,997 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8281553398058252 [2021-03-25 04:46:11,997 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 853 transitions. [2021-03-25 04:46:11,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 853 transitions. [2021-03-25 04:46:11,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:46:11,998 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 853 transitions. [2021-03-25 04:46:12,000 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 170.6) internal successors, (853), 5 states have internal predecessors, (853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:12,002 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 206.0) internal successors, (1236), 6 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:12,002 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 206.0) internal successors, (1236), 6 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:12,002 INFO L185 Difference]: Start difference. First operand has 43 places, 32 transitions, 113 flow. Second operand 5 states and 853 transitions. [2021-03-25 04:46:12,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 42 transitions, 186 flow [2021-03-25 04:46:12,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 42 transitions, 186 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-25 04:46:12,006 INFO L241 Difference]: Finished difference. Result has 49 places, 39 transitions, 182 flow [2021-03-25 04:46:12,006 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=182, PETRI_PLACES=49, PETRI_TRANSITIONS=39} [2021-03-25 04:46:12,006 INFO L343 CegarLoopForPetriNet]: 60 programPoint places, -11 predicate places. [2021-03-25 04:46:12,006 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:12,006 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 39 transitions, 182 flow [2021-03-25 04:46:12,006 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 39 transitions, 182 flow [2021-03-25 04:46:12,007 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 39 transitions, 182 flow [2021-03-25 04:46:12,022 INFO L129 PetriNetUnfolder]: 38/112 cut-off events. [2021-03-25 04:46:12,022 INFO L130 PetriNetUnfolder]: For 118/119 co-relation queries the response was YES. [2021-03-25 04:46:12,023 INFO L84 FinitePrefix]: Finished finitePrefix Result has 322 conditions, 112 events. 38/112 cut-off events. For 118/119 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 423 event pairs, 13 based on Foata normal form. 1/101 useless extension candidates. Maximal degree in co-relation 306. Up to 48 conditions per place. [2021-03-25 04:46:12,025 INFO L142 LiptonReduction]: Number of co-enabled transitions 590 [2021-03-25 04:46:12,029 INFO L154 LiptonReduction]: Checked pairs total: 362 [2021-03-25 04:46:12,029 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:46:12,030 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 24 [2021-03-25 04:46:12,030 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 39 transitions, 182 flow [2021-03-25 04:46:12,031 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 167.83333333333334) internal successors, (1007), 6 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:12,032 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:12,032 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:46:12,032 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 04:46:12,039 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:12,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:12,040 INFO L82 PathProgramCache]: Analyzing trace with hash -2146581699, now seen corresponding path program 2 times [2021-03-25 04:46:12,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:12,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950197522] [2021-03-25 04:46:12,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:12,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:46:12,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:12,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 04:46:12,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:12,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:46:12,148 INFO L142 QuantifierPusher]: treesize reduction 10, result has 82.5 percent of original size [2021-03-25 04:46:12,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 04:46:12,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:12,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:46:12,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:46:12,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950197522] [2021-03-25 04:46:12,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:46:12,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:46:12,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781039751] [2021-03-25 04:46:12,179 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:46:12,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:46:12,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:46:12,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:46:12,181 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 206 [2021-03-25 04:46:12,182 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 39 transitions, 182 flow. Second operand has 6 states, 6 states have (on average 162.83333333333334) internal successors, (977), 6 states have internal predecessors, (977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:12,182 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:46:12,182 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 206 [2021-03-25 04:46:12,182 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:46:12,260 INFO L129 PetriNetUnfolder]: 45/131 cut-off events. [2021-03-25 04:46:12,261 INFO L130 PetriNetUnfolder]: For 149/151 co-relation queries the response was YES. [2021-03-25 04:46:12,261 INFO L84 FinitePrefix]: Finished finitePrefix Result has 439 conditions, 131 events. 45/131 cut-off events. For 149/151 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 481 event pairs, 7 based on Foata normal form. 3/123 useless extension candidates. Maximal degree in co-relation 421. Up to 64 conditions per place. [2021-03-25 04:46:12,262 INFO L132 encePairwiseOnDemand]: 199/206 looper letters, 14 selfloop transitions, 11 changer transitions 0/46 dead transitions. [2021-03-25 04:46:12,263 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 46 transitions, 273 flow [2021-03-25 04:46:12,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:46:12,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:46:12,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 827 transitions. [2021-03-25 04:46:12,265 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8029126213592233 [2021-03-25 04:46:12,265 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 827 transitions. [2021-03-25 04:46:12,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 827 transitions. [2021-03-25 04:46:12,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:46:12,266 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 827 transitions. [2021-03-25 04:46:12,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 165.4) internal successors, (827), 5 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:12,269 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 206.0) internal successors, (1236), 6 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:12,270 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 206.0) internal successors, (1236), 6 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:12,270 INFO L185 Difference]: Start difference. First operand has 49 places, 39 transitions, 182 flow. Second operand 5 states and 827 transitions. [2021-03-25 04:46:12,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 46 transitions, 273 flow [2021-03-25 04:46:12,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 46 transitions, 263 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-25 04:46:12,272 INFO L241 Difference]: Finished difference. Result has 53 places, 43 transitions, 234 flow [2021-03-25 04:46:12,272 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=234, PETRI_PLACES=53, PETRI_TRANSITIONS=43} [2021-03-25 04:46:12,273 INFO L343 CegarLoopForPetriNet]: 60 programPoint places, -7 predicate places. [2021-03-25 04:46:12,273 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:12,273 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 43 transitions, 234 flow [2021-03-25 04:46:12,273 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 43 transitions, 234 flow [2021-03-25 04:46:12,273 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 43 transitions, 234 flow [2021-03-25 04:46:12,288 INFO L129 PetriNetUnfolder]: 40/120 cut-off events. [2021-03-25 04:46:12,289 INFO L130 PetriNetUnfolder]: For 181/182 co-relation queries the response was YES. [2021-03-25 04:46:12,289 INFO L84 FinitePrefix]: Finished finitePrefix Result has 389 conditions, 120 events. 40/120 cut-off events. For 181/182 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 478 event pairs, 11 based on Foata normal form. 1/109 useless extension candidates. Maximal degree in co-relation 371. Up to 55 conditions per place. [2021-03-25 04:46:12,291 INFO L142 LiptonReduction]: Number of co-enabled transitions 666 [2021-03-25 04:46:12,296 INFO L154 LiptonReduction]: Checked pairs total: 508 [2021-03-25 04:46:12,296 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:46:12,296 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-03-25 04:46:12,297 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 43 transitions, 234 flow [2021-03-25 04:46:12,297 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 162.83333333333334) internal successors, (977), 6 states have internal predecessors, (977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:12,297 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:12,297 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:46:12,298 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 04:46:12,298 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:12,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:12,298 INFO L82 PathProgramCache]: Analyzing trace with hash 1896775783, now seen corresponding path program 3 times [2021-03-25 04:46:12,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:12,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468333770] [2021-03-25 04:46:12,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:12,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:46:12,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:12,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 04:46:12,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:12,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:46:12,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:12,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 04:46:12,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:12,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:46:12,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:46:12,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468333770] [2021-03-25 04:46:12,369 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:46:12,369 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:46:12,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481487080] [2021-03-25 04:46:12,369 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:46:12,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:46:12,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:46:12,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:46:12,370 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 206 [2021-03-25 04:46:12,371 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 43 transitions, 234 flow. Second operand has 6 states, 6 states have (on average 162.83333333333334) internal successors, (977), 6 states have internal predecessors, (977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:12,371 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:46:12,372 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 206 [2021-03-25 04:46:12,372 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:46:12,472 INFO L129 PetriNetUnfolder]: 40/127 cut-off events. [2021-03-25 04:46:12,472 INFO L130 PetriNetUnfolder]: For 294/296 co-relation queries the response was YES. [2021-03-25 04:46:12,473 INFO L84 FinitePrefix]: Finished finitePrefix Result has 466 conditions, 127 events. 40/127 cut-off events. For 294/296 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 487 event pairs, 4 based on Foata normal form. 5/123 useless extension candidates. Maximal degree in co-relation 446. Up to 55 conditions per place. [2021-03-25 04:46:12,474 INFO L132 encePairwiseOnDemand]: 200/206 looper letters, 14 selfloop transitions, 15 changer transitions 0/50 dead transitions. [2021-03-25 04:46:12,474 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 50 transitions, 338 flow [2021-03-25 04:46:12,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 04:46:12,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 04:46:12,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 988 transitions. [2021-03-25 04:46:12,477 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7993527508090615 [2021-03-25 04:46:12,477 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 988 transitions. [2021-03-25 04:46:12,477 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 988 transitions. [2021-03-25 04:46:12,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:46:12,478 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 988 transitions. [2021-03-25 04:46:12,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 164.66666666666666) internal successors, (988), 6 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:12,482 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 206.0) internal successors, (1442), 7 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:12,482 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 206.0) internal successors, (1442), 7 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:12,482 INFO L185 Difference]: Start difference. First operand has 53 places, 43 transitions, 234 flow. Second operand 6 states and 988 transitions. [2021-03-25 04:46:12,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 50 transitions, 338 flow [2021-03-25 04:46:12,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 50 transitions, 315 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-03-25 04:46:12,488 INFO L241 Difference]: Finished difference. Result has 56 places, 45 transitions, 275 flow [2021-03-25 04:46:12,488 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=275, PETRI_PLACES=56, PETRI_TRANSITIONS=45} [2021-03-25 04:46:12,489 INFO L343 CegarLoopForPetriNet]: 60 programPoint places, -4 predicate places. [2021-03-25 04:46:12,489 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:12,489 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 45 transitions, 275 flow [2021-03-25 04:46:12,489 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 45 transitions, 275 flow [2021-03-25 04:46:12,489 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 56 places, 45 transitions, 275 flow [2021-03-25 04:46:12,507 INFO L129 PetriNetUnfolder]: 38/119 cut-off events. [2021-03-25 04:46:12,508 INFO L130 PetriNetUnfolder]: For 253/259 co-relation queries the response was YES. [2021-03-25 04:46:12,509 INFO L84 FinitePrefix]: Finished finitePrefix Result has 433 conditions, 119 events. 38/119 cut-off events. For 253/259 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 485 event pairs, 11 based on Foata normal form. 6/115 useless extension candidates. Maximal degree in co-relation 414. Up to 53 conditions per place. [2021-03-25 04:46:12,510 INFO L142 LiptonReduction]: Number of co-enabled transitions 704 [2021-03-25 04:46:12,515 INFO L154 LiptonReduction]: Checked pairs total: 548 [2021-03-25 04:46:12,515 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:46:12,516 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 27 [2021-03-25 04:46:12,520 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 45 transitions, 275 flow [2021-03-25 04:46:12,520 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 162.83333333333334) internal successors, (977), 6 states have internal predecessors, (977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:12,521 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:12,521 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:46:12,521 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 04:46:12,521 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:12,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:12,522 INFO L82 PathProgramCache]: Analyzing trace with hash -942392682, now seen corresponding path program 1 times [2021-03-25 04:46:12,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:12,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38765030] [2021-03-25 04:46:12,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:12,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:46:12,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:12,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:12,598 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 04:46:12,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 04:46:12,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:12,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:46:12,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:46:12,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38765030] [2021-03-25 04:46:12,605 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:46:12,605 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:46:12,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48158727] [2021-03-25 04:46:12,606 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:46:12,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:46:12,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:46:12,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:46:12,607 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 206 [2021-03-25 04:46:12,608 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 45 transitions, 275 flow. Second operand has 4 states, 4 states have (on average 171.75) internal successors, (687), 4 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:12,608 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:46:12,608 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 206 [2021-03-25 04:46:12,608 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:46:12,746 INFO L129 PetriNetUnfolder]: 439/804 cut-off events. [2021-03-25 04:46:12,746 INFO L130 PetriNetUnfolder]: For 1307/1582 co-relation queries the response was YES. [2021-03-25 04:46:12,751 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2416 conditions, 804 events. 439/804 cut-off events. For 1307/1582 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 5027 event pairs, 167 based on Foata normal form. 88/711 useless extension candidates. Maximal degree in co-relation 2395. Up to 468 conditions per place. [2021-03-25 04:46:12,756 INFO L132 encePairwiseOnDemand]: 199/206 looper letters, 14 selfloop transitions, 10 changer transitions 0/59 dead transitions. [2021-03-25 04:46:12,756 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 59 transitions, 351 flow [2021-03-25 04:46:12,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:46:12,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:46:12,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 879 transitions. [2021-03-25 04:46:12,759 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8533980582524272 [2021-03-25 04:46:12,759 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 879 transitions. [2021-03-25 04:46:12,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 879 transitions. [2021-03-25 04:46:12,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:46:12,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 879 transitions. [2021-03-25 04:46:12,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 175.8) internal successors, (879), 5 states have internal predecessors, (879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:12,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 206.0) internal successors, (1236), 6 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:12,765 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 206.0) internal successors, (1236), 6 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:12,765 INFO L185 Difference]: Start difference. First operand has 56 places, 45 transitions, 275 flow. Second operand 5 states and 879 transitions. [2021-03-25 04:46:12,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 59 transitions, 351 flow [2021-03-25 04:46:12,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 59 transitions, 332 flow, removed 6 selfloop flow, removed 3 redundant places. [2021-03-25 04:46:12,771 INFO L241 Difference]: Finished difference. Result has 60 places, 54 transitions, 339 flow [2021-03-25 04:46:12,771 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=339, PETRI_PLACES=60, PETRI_TRANSITIONS=54} [2021-03-25 04:46:12,771 INFO L343 CegarLoopForPetriNet]: 60 programPoint places, 0 predicate places. [2021-03-25 04:46:12,771 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:12,771 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 54 transitions, 339 flow [2021-03-25 04:46:12,772 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 54 transitions, 339 flow [2021-03-25 04:46:12,772 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 54 transitions, 339 flow [2021-03-25 04:46:12,886 INFO L129 PetriNetUnfolder]: 350/659 cut-off events. [2021-03-25 04:46:12,886 INFO L130 PetriNetUnfolder]: For 1173/1341 co-relation queries the response was YES. [2021-03-25 04:46:12,890 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2313 conditions, 659 events. 350/659 cut-off events. For 1173/1341 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 4000 event pairs, 150 based on Foata normal form. 15/549 useless extension candidates. Maximal degree in co-relation 2292. Up to 397 conditions per place. [2021-03-25 04:46:12,897 INFO L142 LiptonReduction]: Number of co-enabled transitions 956 [2021-03-25 04:46:12,940 INFO L154 LiptonReduction]: Checked pairs total: 419 [2021-03-25 04:46:12,940 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:46:12,940 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 169 [2021-03-25 04:46:12,941 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 54 transitions, 339 flow [2021-03-25 04:46:12,941 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 171.75) internal successors, (687), 4 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:12,941 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:12,941 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:46:12,941 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 04:46:12,942 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:12,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:12,942 INFO L82 PathProgramCache]: Analyzing trace with hash 216920094, now seen corresponding path program 1 times [2021-03-25 04:46:12,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:12,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640711989] [2021-03-25 04:46:12,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:12,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:46:13,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:13,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:13,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:13,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:13,033 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 04:46:13,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 04:46:13,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:13,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:46:13,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:46:13,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640711989] [2021-03-25 04:46:13,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:46:13,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:46:13,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624564384] [2021-03-25 04:46:13,043 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:46:13,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:46:13,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:46:13,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:46:13,045 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 206 [2021-03-25 04:46:13,046 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 54 transitions, 339 flow. Second operand has 5 states, 5 states have (on average 171.8) internal successors, (859), 5 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:13,046 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:46:13,046 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 206 [2021-03-25 04:46:13,046 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:46:13,194 INFO L129 PetriNetUnfolder]: 308/605 cut-off events. [2021-03-25 04:46:13,194 INFO L130 PetriNetUnfolder]: For 1524/2681 co-relation queries the response was YES. [2021-03-25 04:46:13,198 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2406 conditions, 605 events. 308/605 cut-off events. For 1524/2681 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 3629 event pairs, 44 based on Foata normal form. 133/633 useless extension candidates. Maximal degree in co-relation 2383. Up to 369 conditions per place. [2021-03-25 04:46:13,202 INFO L132 encePairwiseOnDemand]: 199/206 looper letters, 15 selfloop transitions, 19 changer transitions 0/69 dead transitions. [2021-03-25 04:46:13,202 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 69 transitions, 487 flow [2021-03-25 04:46:13,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 04:46:13,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 04:46:13,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1231 transitions. [2021-03-25 04:46:13,206 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8536754507628294 [2021-03-25 04:46:13,206 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1231 transitions. [2021-03-25 04:46:13,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1231 transitions. [2021-03-25 04:46:13,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:46:13,207 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1231 transitions. [2021-03-25 04:46:13,210 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 175.85714285714286) internal successors, (1231), 7 states have internal predecessors, (1231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:13,212 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 206.0) internal successors, (1648), 8 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:13,212 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 206.0) internal successors, (1648), 8 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:13,212 INFO L185 Difference]: Start difference. First operand has 60 places, 54 transitions, 339 flow. Second operand 7 states and 1231 transitions. [2021-03-25 04:46:13,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 69 transitions, 487 flow [2021-03-25 04:46:13,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 69 transitions, 482 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 04:46:13,217 INFO L241 Difference]: Finished difference. Result has 68 places, 63 transitions, 476 flow [2021-03-25 04:46:13,218 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=476, PETRI_PLACES=68, PETRI_TRANSITIONS=63} [2021-03-25 04:46:13,218 INFO L343 CegarLoopForPetriNet]: 60 programPoint places, 8 predicate places. [2021-03-25 04:46:13,218 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:13,218 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 63 transitions, 476 flow [2021-03-25 04:46:13,218 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 63 transitions, 476 flow [2021-03-25 04:46:13,219 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 63 transitions, 476 flow [2021-03-25 04:46:13,275 INFO L129 PetriNetUnfolder]: 235/496 cut-off events. [2021-03-25 04:46:13,275 INFO L130 PetriNetUnfolder]: For 1746/2156 co-relation queries the response was YES. [2021-03-25 04:46:13,279 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2335 conditions, 496 events. 235/496 cut-off events. For 1746/2156 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 3079 event pairs, 43 based on Foata normal form. 16/433 useless extension candidates. Maximal degree in co-relation 2310. Up to 307 conditions per place. [2021-03-25 04:46:13,285 INFO L142 LiptonReduction]: Number of co-enabled transitions 1158 [2021-03-25 04:46:13,309 INFO L154 LiptonReduction]: Checked pairs total: 540 [2021-03-25 04:46:13,309 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:46:13,310 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 92 [2021-03-25 04:46:13,310 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 63 transitions, 476 flow [2021-03-25 04:46:13,311 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 171.8) internal successors, (859), 5 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:13,311 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:13,311 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:46:13,311 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-25 04:46:13,311 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:13,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:13,311 INFO L82 PathProgramCache]: Analyzing trace with hash -1685765140, now seen corresponding path program 1 times [2021-03-25 04:46:13,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:13,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133035944] [2021-03-25 04:46:13,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:13,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:46:13,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:13,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:46:13,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:13,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:13,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:46:13,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133035944] [2021-03-25 04:46:13,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:46:13,357 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:46:13,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853032611] [2021-03-25 04:46:13,357 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:46:13,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:46:13,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:46:13,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:46:13,358 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 206 [2021-03-25 04:46:13,359 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 63 transitions, 476 flow. Second operand has 3 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:13,359 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:46:13,359 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 206 [2021-03-25 04:46:13,359 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:46:13,444 INFO L129 PetriNetUnfolder]: 359/714 cut-off events. [2021-03-25 04:46:13,444 INFO L130 PetriNetUnfolder]: For 2984/4117 co-relation queries the response was YES. [2021-03-25 04:46:13,448 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3479 conditions, 714 events. 359/714 cut-off events. For 2984/4117 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 4480 event pairs, 65 based on Foata normal form. 45/630 useless extension candidates. Maximal degree in co-relation 3452. Up to 486 conditions per place. [2021-03-25 04:46:13,451 INFO L132 encePairwiseOnDemand]: 203/206 looper letters, 3 selfloop transitions, 3 changer transitions 0/63 dead transitions. [2021-03-25 04:46:13,452 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 63 transitions, 488 flow [2021-03-25 04:46:13,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:46:13,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:46:13,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 561 transitions. [2021-03-25 04:46:13,454 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9077669902912622 [2021-03-25 04:46:13,454 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 561 transitions. [2021-03-25 04:46:13,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 561 transitions. [2021-03-25 04:46:13,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:46:13,454 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 561 transitions. [2021-03-25 04:46:13,456 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 187.0) internal successors, (561), 3 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:13,457 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 206.0) internal successors, (824), 4 states have internal predecessors, (824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:13,458 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 206.0) internal successors, (824), 4 states have internal predecessors, (824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:13,458 INFO L185 Difference]: Start difference. First operand has 68 places, 63 transitions, 476 flow. Second operand 3 states and 561 transitions. [2021-03-25 04:46:13,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 63 transitions, 488 flow [2021-03-25 04:46:13,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 63 transitions, 438 flow, removed 17 selfloop flow, removed 3 redundant places. [2021-03-25 04:46:13,466 INFO L241 Difference]: Finished difference. Result has 68 places, 63 transitions, 437 flow [2021-03-25 04:46:13,467 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=426, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=437, PETRI_PLACES=68, PETRI_TRANSITIONS=63} [2021-03-25 04:46:13,467 INFO L343 CegarLoopForPetriNet]: 60 programPoint places, 8 predicate places. [2021-03-25 04:46:13,467 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:13,467 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 63 transitions, 437 flow [2021-03-25 04:46:13,467 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 63 transitions, 437 flow [2021-03-25 04:46:13,468 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 63 transitions, 437 flow [2021-03-25 04:46:13,537 INFO L129 PetriNetUnfolder]: 361/713 cut-off events. [2021-03-25 04:46:13,537 INFO L130 PetriNetUnfolder]: For 2923/3143 co-relation queries the response was YES. [2021-03-25 04:46:13,541 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3147 conditions, 713 events. 361/713 cut-off events. For 2923/3143 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 4664 event pairs, 65 based on Foata normal form. 19/603 useless extension candidates. Maximal degree in co-relation 3122. Up to 438 conditions per place. [2021-03-25 04:46:13,549 INFO L142 LiptonReduction]: Number of co-enabled transitions 1158 [2021-03-25 04:46:13,569 INFO L154 LiptonReduction]: Checked pairs total: 632 [2021-03-25 04:46:13,569 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:46:13,569 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 102 [2021-03-25 04:46:13,571 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 63 transitions, 437 flow [2021-03-25 04:46:13,571 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:13,571 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:13,571 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:46:13,571 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-25 04:46:13,571 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:13,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:13,572 INFO L82 PathProgramCache]: Analyzing trace with hash 2141103106, now seen corresponding path program 1 times [2021-03-25 04:46:13,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:13,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168768274] [2021-03-25 04:46:13,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:13,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:46:13,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:13,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:13,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:13,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:13,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:13,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:13,641 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 04:46:13,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 04:46:13,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:13,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:46:13,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:46:13,649 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168768274] [2021-03-25 04:46:13,649 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:46:13,649 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 04:46:13,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302874152] [2021-03-25 04:46:13,649 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:46:13,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:46:13,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:46:13,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:46:13,651 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 206 [2021-03-25 04:46:13,651 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 63 transitions, 437 flow. Second operand has 6 states, 6 states have (on average 171.83333333333334) internal successors, (1031), 6 states have internal predecessors, (1031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:13,652 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:46:13,652 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 206 [2021-03-25 04:46:13,652 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:46:13,808 INFO L129 PetriNetUnfolder]: 344/658 cut-off events. [2021-03-25 04:46:13,808 INFO L130 PetriNetUnfolder]: For 3415/5921 co-relation queries the response was YES. [2021-03-25 04:46:13,812 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3079 conditions, 658 events. 344/658 cut-off events. For 3415/5921 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 3809 event pairs, 7 based on Foata normal form. 174/687 useless extension candidates. Maximal degree in co-relation 3052. Up to 408 conditions per place. [2021-03-25 04:46:13,815 INFO L132 encePairwiseOnDemand]: 199/206 looper letters, 11 selfloop transitions, 28 changer transitions 4/75 dead transitions. [2021-03-25 04:46:13,815 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 75 transitions, 617 flow [2021-03-25 04:46:13,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 04:46:13,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 04:46:13,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1583 transitions. [2021-03-25 04:46:13,819 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8538295577130529 [2021-03-25 04:46:13,819 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1583 transitions. [2021-03-25 04:46:13,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1583 transitions. [2021-03-25 04:46:13,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:46:13,820 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1583 transitions. [2021-03-25 04:46:13,823 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 175.88888888888889) internal successors, (1583), 9 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:13,826 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 206.0) internal successors, (2060), 10 states have internal predecessors, (2060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:13,826 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 206.0) internal successors, (2060), 10 states have internal predecessors, (2060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:13,826 INFO L185 Difference]: Start difference. First operand has 68 places, 63 transitions, 437 flow. Second operand 9 states and 1583 transitions. [2021-03-25 04:46:13,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 75 transitions, 617 flow [2021-03-25 04:46:13,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 75 transitions, 601 flow, removed 5 selfloop flow, removed 2 redundant places. [2021-03-25 04:46:13,835 INFO L241 Difference]: Finished difference. Result has 77 places, 68 transitions, 565 flow [2021-03-25 04:46:13,835 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=383, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=565, PETRI_PLACES=77, PETRI_TRANSITIONS=68} [2021-03-25 04:46:13,835 INFO L343 CegarLoopForPetriNet]: 60 programPoint places, 17 predicate places. [2021-03-25 04:46:13,835 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:13,835 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 68 transitions, 565 flow [2021-03-25 04:46:13,836 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 68 transitions, 565 flow [2021-03-25 04:46:13,836 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 68 transitions, 565 flow [2021-03-25 04:46:13,917 INFO L129 PetriNetUnfolder]: 221/481 cut-off events. [2021-03-25 04:46:13,918 INFO L130 PetriNetUnfolder]: For 2877/3148 co-relation queries the response was YES. [2021-03-25 04:46:13,921 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2554 conditions, 481 events. 221/481 cut-off events. For 2877/3148 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 3007 event pairs, 7 based on Foata normal form. 11/388 useless extension candidates. Maximal degree in co-relation 2526. Up to 306 conditions per place. [2021-03-25 04:46:13,927 INFO L142 LiptonReduction]: Number of co-enabled transitions 1226 [2021-03-25 04:46:14,109 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2021-03-25 04:46:14,490 WARN L205 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 85 [2021-03-25 04:46:14,607 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-03-25 04:46:14,624 INFO L154 LiptonReduction]: Checked pairs total: 1436 [2021-03-25 04:46:14,624 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 04:46:14,625 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 790 [2021-03-25 04:46:14,625 INFO L480 AbstractCegarLoop]: Abstraction has has 77 places, 68 transitions, 569 flow [2021-03-25 04:46:14,625 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 171.83333333333334) internal successors, (1031), 6 states have internal predecessors, (1031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:14,625 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:14,626 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:46:14,626 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-25 04:46:14,626 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:14,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:14,626 INFO L82 PathProgramCache]: Analyzing trace with hash 1909759666, now seen corresponding path program 1 times [2021-03-25 04:46:14,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:14,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186714051] [2021-03-25 04:46:14,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:14,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:46:14,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:14,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:14,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:14,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:14,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:14,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:14,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:14,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:14,683 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 04:46:14,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 04:46:14,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:14,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:46:14,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:46:14,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186714051] [2021-03-25 04:46:14,691 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:46:14,691 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 04:46:14,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771249314] [2021-03-25 04:46:14,691 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 04:46:14,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:46:14,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 04:46:14,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 04:46:14,693 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 207 [2021-03-25 04:46:14,694 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 68 transitions, 569 flow. Second operand has 7 states, 7 states have (on average 172.85714285714286) internal successors, (1210), 7 states have internal predecessors, (1210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:14,694 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:46:14,694 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 207 [2021-03-25 04:46:14,694 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:46:14,864 INFO L129 PetriNetUnfolder]: 303/581 cut-off events. [2021-03-25 04:46:14,864 INFO L130 PetriNetUnfolder]: For 3762/5740 co-relation queries the response was YES. [2021-03-25 04:46:14,868 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3341 conditions, 581 events. 303/581 cut-off events. For 3762/5740 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 3402 event pairs, 0 based on Foata normal form. 125/561 useless extension candidates. Maximal degree in co-relation 3311. Up to 375 conditions per place. [2021-03-25 04:46:14,871 INFO L132 encePairwiseOnDemand]: 200/207 looper letters, 6 selfloop transitions, 33 changer transitions 5/75 dead transitions. [2021-03-25 04:46:14,871 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 75 transitions, 698 flow [2021-03-25 04:46:14,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 04:46:14,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 04:46:14,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1938 transitions. [2021-03-25 04:46:14,876 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8511198945981555 [2021-03-25 04:46:14,876 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1938 transitions. [2021-03-25 04:46:14,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1938 transitions. [2021-03-25 04:46:14,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:46:14,877 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1938 transitions. [2021-03-25 04:46:14,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 176.1818181818182) internal successors, (1938), 11 states have internal predecessors, (1938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:14,884 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 207.0) internal successors, (2484), 12 states have internal predecessors, (2484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:14,885 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 207.0) internal successors, (2484), 12 states have internal predecessors, (2484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:14,885 INFO L185 Difference]: Start difference. First operand has 77 places, 68 transitions, 569 flow. Second operand 11 states and 1938 transitions. [2021-03-25 04:46:14,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 75 transitions, 698 flow [2021-03-25 04:46:14,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 75 transitions, 583 flow, removed 41 selfloop flow, removed 5 redundant places. [2021-03-25 04:46:14,902 INFO L241 Difference]: Finished difference. Result has 85 places, 67 transitions, 525 flow [2021-03-25 04:46:14,902 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=525, PETRI_PLACES=85, PETRI_TRANSITIONS=67} [2021-03-25 04:46:14,903 INFO L343 CegarLoopForPetriNet]: 60 programPoint places, 25 predicate places. [2021-03-25 04:46:14,903 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:14,903 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 67 transitions, 525 flow [2021-03-25 04:46:14,903 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 67 transitions, 525 flow [2021-03-25 04:46:14,904 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 67 transitions, 525 flow [2021-03-25 04:46:14,936 INFO L129 PetriNetUnfolder]: 192/420 cut-off events. [2021-03-25 04:46:14,936 INFO L130 PetriNetUnfolder]: For 1633/1877 co-relation queries the response was YES. [2021-03-25 04:46:14,938 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1836 conditions, 420 events. 192/420 cut-off events. For 1633/1877 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 2638 event pairs, 0 based on Foata normal form. 5/319 useless extension candidates. Maximal degree in co-relation 1805. Up to 140 conditions per place. [2021-03-25 04:46:14,943 INFO L142 LiptonReduction]: Number of co-enabled transitions 1194 [2021-03-25 04:46:15,262 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-03-25 04:46:15,396 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-03-25 04:46:16,068 WARN L205 SmtUtils]: Spent 663.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 196 [2021-03-25 04:46:16,297 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2021-03-25 04:46:17,642 WARN L205 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 350 DAG size of output: 276 [2021-03-25 04:46:18,183 WARN L205 SmtUtils]: Spent 537.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2021-03-25 04:46:18,194 INFO L154 LiptonReduction]: Checked pairs total: 1964 [2021-03-25 04:46:18,194 INFO L156 LiptonReduction]: Total number of compositions: 6 [2021-03-25 04:46:18,194 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3291 [2021-03-25 04:46:18,195 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 61 transitions, 485 flow [2021-03-25 04:46:18,195 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 172.85714285714286) internal successors, (1210), 7 states have internal predecessors, (1210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:18,195 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:18,195 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:46:18,195 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-25 04:46:18,196 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:18,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:18,196 INFO L82 PathProgramCache]: Analyzing trace with hash 2057739708, now seen corresponding path program 1 times [2021-03-25 04:46:18,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:18,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915453997] [2021-03-25 04:46:18,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:18,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:46:18,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:18,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:46:18,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:18,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:18,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:18,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:18,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:46:18,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915453997] [2021-03-25 04:46:18,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:46:18,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:46:18,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907683779] [2021-03-25 04:46:18,252 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:46:18,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:46:18,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:46:18,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:46:18,254 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 209 [2021-03-25 04:46:18,254 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 61 transitions, 485 flow. Second operand has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:18,254 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:46:18,254 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 209 [2021-03-25 04:46:18,254 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:46:18,303 INFO L129 PetriNetUnfolder]: 128/282 cut-off events. [2021-03-25 04:46:18,304 INFO L130 PetriNetUnfolder]: For 5636/6021 co-relation queries the response was YES. [2021-03-25 04:46:18,305 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1173 conditions, 282 events. 128/282 cut-off events. For 5636/6021 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 1436 event pairs, 0 based on Foata normal form. 22/246 useless extension candidates. Maximal degree in co-relation 1140. Up to 108 conditions per place. [2021-03-25 04:46:18,306 INFO L132 encePairwiseOnDemand]: 206/209 looper letters, 3 selfloop transitions, 2 changer transitions 2/50 dead transitions. [2021-03-25 04:46:18,306 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 50 transitions, 381 flow [2021-03-25 04:46:18,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:46:18,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:46:18,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 738 transitions. [2021-03-25 04:46:18,309 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8827751196172249 [2021-03-25 04:46:18,309 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 738 transitions. [2021-03-25 04:46:18,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 738 transitions. [2021-03-25 04:46:18,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:46:18,309 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 738 transitions. [2021-03-25 04:46:18,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 184.5) internal successors, (738), 4 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:18,324 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 209.0) internal successors, (1045), 5 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:18,325 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 209.0) internal successors, (1045), 5 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:18,325 INFO L185 Difference]: Start difference. First operand has 82 places, 61 transitions, 485 flow. Second operand 4 states and 738 transitions. [2021-03-25 04:46:18,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 50 transitions, 381 flow [2021-03-25 04:46:18,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 50 transitions, 294 flow, removed 28 selfloop flow, removed 13 redundant places. [2021-03-25 04:46:18,330 INFO L241 Difference]: Finished difference. Result has 64 places, 48 transitions, 285 flow [2021-03-25 04:46:18,330 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=285, PETRI_PLACES=64, PETRI_TRANSITIONS=48} [2021-03-25 04:46:18,331 INFO L343 CegarLoopForPetriNet]: 60 programPoint places, 4 predicate places. [2021-03-25 04:46:18,331 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:18,331 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 48 transitions, 285 flow [2021-03-25 04:46:18,331 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 48 transitions, 285 flow [2021-03-25 04:46:18,331 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 48 transitions, 285 flow [2021-03-25 04:46:18,345 INFO L129 PetriNetUnfolder]: 67/160 cut-off events. [2021-03-25 04:46:18,345 INFO L130 PetriNetUnfolder]: For 548/609 co-relation queries the response was YES. [2021-03-25 04:46:18,346 INFO L84 FinitePrefix]: Finished finitePrefix Result has 502 conditions, 160 events. 67/160 cut-off events. For 548/609 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 774 event pairs, 0 based on Foata normal form. 8/150 useless extension candidates. Maximal degree in co-relation 479. Up to 48 conditions per place. [2021-03-25 04:46:18,347 INFO L142 LiptonReduction]: Number of co-enabled transitions 616 [2021-03-25 04:46:18,434 INFO L154 LiptonReduction]: Checked pairs total: 370 [2021-03-25 04:46:18,434 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 04:46:18,434 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 103 [2021-03-25 04:46:18,434 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 46 transitions, 283 flow [2021-03-25 04:46:18,434 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:18,435 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:18,435 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:46:18,435 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-25 04:46:18,435 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:18,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:18,435 INFO L82 PathProgramCache]: Analyzing trace with hash -114962047, now seen corresponding path program 1 times [2021-03-25 04:46:18,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:18,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122900326] [2021-03-25 04:46:18,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:18,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:46:18,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:18,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:46:18,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:18,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:18,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:18,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:18,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:46:18,482 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122900326] [2021-03-25 04:46:18,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:46:18,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:46:18,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347940239] [2021-03-25 04:46:18,483 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:46:18,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:46:18,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:46:18,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:46:18,484 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 212 [2021-03-25 04:46:18,485 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 46 transitions, 283 flow. Second operand has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:18,485 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:46:18,485 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 212 [2021-03-25 04:46:18,485 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:46:18,523 INFO L129 PetriNetUnfolder]: 128/290 cut-off events. [2021-03-25 04:46:18,524 INFO L130 PetriNetUnfolder]: For 1097/1197 co-relation queries the response was YES. [2021-03-25 04:46:18,525 INFO L84 FinitePrefix]: Finished finitePrefix Result has 914 conditions, 290 events. 128/290 cut-off events. For 1097/1197 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 1485 event pairs, 0 based on Foata normal form. 20/279 useless extension candidates. Maximal degree in co-relation 889. Up to 94 conditions per place. [2021-03-25 04:46:18,526 INFO L132 encePairwiseOnDemand]: 209/212 looper letters, 3 selfloop transitions, 1 changer transitions 7/47 dead transitions. [2021-03-25 04:46:18,526 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 47 transitions, 295 flow [2021-03-25 04:46:18,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:46:18,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:46:18,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 750 transitions. [2021-03-25 04:46:18,528 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8844339622641509 [2021-03-25 04:46:18,528 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 750 transitions. [2021-03-25 04:46:18,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 750 transitions. [2021-03-25 04:46:18,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:46:18,529 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 750 transitions. [2021-03-25 04:46:18,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 187.5) internal successors, (750), 4 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:18,532 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 212.0) internal successors, (1060), 5 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:18,532 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 212.0) internal successors, (1060), 5 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:18,532 INFO L185 Difference]: Start difference. First operand has 62 places, 46 transitions, 283 flow. Second operand 4 states and 750 transitions. [2021-03-25 04:46:18,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 47 transitions, 295 flow [2021-03-25 04:46:18,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 47 transitions, 290 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-25 04:46:18,536 INFO L241 Difference]: Finished difference. Result has 64 places, 40 transitions, 235 flow [2021-03-25 04:46:18,536 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=212, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=235, PETRI_PLACES=64, PETRI_TRANSITIONS=40} [2021-03-25 04:46:18,536 INFO L343 CegarLoopForPetriNet]: 60 programPoint places, 4 predicate places. [2021-03-25 04:46:18,536 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:18,536 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 40 transitions, 235 flow [2021-03-25 04:46:18,536 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 40 transitions, 235 flow [2021-03-25 04:46:18,537 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 40 transitions, 235 flow [2021-03-25 04:46:18,548 INFO L129 PetriNetUnfolder]: 63/152 cut-off events. [2021-03-25 04:46:18,548 INFO L130 PetriNetUnfolder]: For 553/589 co-relation queries the response was YES. [2021-03-25 04:46:18,549 INFO L84 FinitePrefix]: Finished finitePrefix Result has 477 conditions, 152 events. 63/152 cut-off events. For 553/589 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 652 event pairs, 0 based on Foata normal form. 8/145 useless extension candidates. Maximal degree in co-relation 454. Up to 52 conditions per place. [2021-03-25 04:46:18,550 INFO L142 LiptonReduction]: Number of co-enabled transitions 342 [2021-03-25 04:46:18,551 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 04:46:18,552 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:46:18,552 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-03-25 04:46:18,552 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 40 transitions, 235 flow [2021-03-25 04:46:18,552 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:18,552 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:18,553 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:46:18,553 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-25 04:46:18,553 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:18,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:18,553 INFO L82 PathProgramCache]: Analyzing trace with hash 1632090753, now seen corresponding path program 1 times [2021-03-25 04:46:18,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:18,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153992042] [2021-03-25 04:46:18,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:18,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 04:46:18,585 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 04:46:18,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 04:46:18,615 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 04:46:18,657 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-25 04:46:18,657 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-25 04:46:18,657 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-25 04:46:18,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 04:46:18 BasicIcfg [2021-03-25 04:46:18,761 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 04:46:18,762 INFO L168 Benchmark]: Toolchain (without parser) took 22294.77 ms. Allocated memory was 255.9 MB in the beginning and 635.4 MB in the end (delta: 379.6 MB). Free memory was 232.5 MB in the beginning and 408.2 MB in the end (delta: -175.7 MB). Peak memory consumption was 203.5 MB. Max. memory is 16.0 GB. [2021-03-25 04:46:18,763 INFO L168 Benchmark]: CDTParser took 0.44 ms. Allocated memory is still 255.9 MB. Free memory was 237.6 MB in the beginning and 237.5 MB in the end (delta: 162.7 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 04:46:18,764 INFO L168 Benchmark]: CACSL2BoogieTranslator took 589.92 ms. Allocated memory was 255.9 MB in the beginning and 367.0 MB in the end (delta: 111.1 MB). Free memory was 231.9 MB in the beginning and 325.0 MB in the end (delta: -93.0 MB). Peak memory consumption was 17.3 MB. Max. memory is 16.0 GB. [2021-03-25 04:46:18,764 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.29 ms. Allocated memory is still 367.0 MB. Free memory was 325.0 MB in the beginning and 322.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-03-25 04:46:18,764 INFO L168 Benchmark]: Boogie Preprocessor took 42.15 ms. Allocated memory is still 367.0 MB. Free memory was 322.1 MB in the beginning and 320.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 04:46:18,771 INFO L168 Benchmark]: RCFGBuilder took 1770.40 ms. Allocated memory is still 367.0 MB. Free memory was 320.0 MB in the beginning and 251.6 MB in the end (delta: 68.4 MB). Peak memory consumption was 68.0 MB. Max. memory is 16.0 GB. [2021-03-25 04:46:18,772 INFO L168 Benchmark]: TraceAbstraction took 19840.03 ms. Allocated memory was 367.0 MB in the beginning and 635.4 MB in the end (delta: 268.4 MB). Free memory was 250.6 MB in the beginning and 408.2 MB in the end (delta: -157.6 MB). Peak memory consumption was 111.9 MB. Max. memory is 16.0 GB. [2021-03-25 04:46:18,773 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44 ms. Allocated memory is still 255.9 MB. Free memory was 237.6 MB in the beginning and 237.5 MB in the end (delta: 162.7 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 589.92 ms. Allocated memory was 255.9 MB in the beginning and 367.0 MB in the end (delta: 111.1 MB). Free memory was 231.9 MB in the beginning and 325.0 MB in the end (delta: -93.0 MB). Peak memory consumption was 17.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 44.29 ms. Allocated memory is still 367.0 MB. Free memory was 325.0 MB in the beginning and 322.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 42.15 ms. Allocated memory is still 367.0 MB. Free memory was 322.1 MB in the beginning and 320.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1770.40 ms. Allocated memory is still 367.0 MB. Free memory was 320.0 MB in the beginning and 251.6 MB in the end (delta: 68.4 MB). Peak memory consumption was 68.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 19840.03 ms. Allocated memory was 367.0 MB in the beginning and 635.4 MB in the end (delta: 268.4 MB). Free memory was 250.6 MB in the beginning and 408.2 MB in the end (delta: -157.6 MB). Peak memory consumption was 111.9 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7491.8ms, 124 PlacesBefore, 60 PlacesAfterwards, 113 TransitionsBefore, 48 TransitionsAfterwards, 2598 CoEnabledTransitionPairs, 5 FixpointIterations, 28 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 74 TotalNumberOfCompositions, 4166 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2152, positive: 2060, positive conditional: 0, positive unconditional: 2060, negative: 92, negative conditional: 0, negative unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1251, positive: 1224, positive conditional: 0, positive unconditional: 1224, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1251, positive: 1224, positive conditional: 0, positive unconditional: 1224, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2152, positive: 836, positive conditional: 0, positive unconditional: 836, negative: 65, negative conditional: 0, negative unconditional: 65, unknown: 1251, unknown conditional: 0, unknown unconditional: 1251] , Statistics on independence cache: Total cache size (in pairs): 111, Positive cache size: 98, Positive conditional cache size: 0, Positive unconditional cache size: 98, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2593.3ms, 56 PlacesBefore, 41 PlacesAfterwards, 41 TransitionsBefore, 30 TransitionsAfterwards, 392 CoEnabledTransitionPairs, 3 FixpointIterations, 10 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 11 TotalNumberOfCompositions, 1348 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 371, positive: 294, positive conditional: 0, positive unconditional: 294, negative: 77, negative conditional: 0, negative unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 41, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 41, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 371, positive: 261, positive conditional: 0, positive unconditional: 261, negative: 69, negative conditional: 0, negative unconditional: 69, unknown: 41, unknown conditional: 0, unknown unconditional: 41] , Statistics on independence cache: Total cache size (in pairs): 134, Positive cache size: 115, Positive conditional cache size: 0, Positive unconditional cache size: 115, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1435.9ms, 42 PlacesBefore, 39 PlacesAfterwards, 32 TransitionsBefore, 29 TransitionsAfterwards, 420 CoEnabledTransitionPairs, 3 FixpointIterations, 3 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 1185 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 325, positive: 259, positive conditional: 0, positive unconditional: 259, negative: 66, negative conditional: 0, negative unconditional: 66, 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: 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] , Cache Queries: [ total: 325, positive: 259, positive conditional: 0, positive unconditional: 259, negative: 66, negative conditional: 0, negative unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 134, Positive cache size: 115, Positive conditional cache size: 0, Positive unconditional cache size: 115, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 130.1ms, 41 PlacesBefore, 40 PlacesAfterwards, 29 TransitionsBefore, 28 TransitionsAfterwards, 416 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 710 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 225, positive: 186, positive conditional: 0, positive unconditional: 186, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 9, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 225, positive: 179, positive conditional: 0, positive unconditional: 179, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 9, unknown conditional: 0, unknown unconditional: 9] , Statistics on independence cache: Total cache size (in pairs): 121, Positive cache size: 103, Positive conditional cache size: 0, Positive unconditional cache size: 103, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.3ms, 43 PlacesBefore, 43 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 468 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 329 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 119, positive: 102, positive conditional: 0, positive unconditional: 102, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 119, positive: 99, positive conditional: 0, positive unconditional: 99, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 124, Positive cache size: 106, Positive conditional cache size: 0, Positive unconditional cache size: 106, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22.9ms, 49 PlacesBefore, 49 PlacesAfterwards, 39 TransitionsBefore, 39 TransitionsAfterwards, 590 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 362 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 131, positive: 115, positive conditional: 0, positive unconditional: 115, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: 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] , Cache Queries: [ total: 131, positive: 114, positive conditional: 0, positive unconditional: 114, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 125, Positive cache size: 107, Positive conditional cache size: 0, Positive unconditional cache size: 107, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23.2ms, 53 PlacesBefore, 53 PlacesAfterwards, 43 TransitionsBefore, 43 TransitionsAfterwards, 666 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 508 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 165, positive: 143, positive conditional: 0, positive unconditional: 143, negative: 22, negative conditional: 0, negative unconditional: 22, 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: 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] , Cache Queries: [ total: 165, positive: 143, positive conditional: 0, positive unconditional: 143, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 125, Positive cache size: 107, Positive conditional cache size: 0, Positive unconditional cache size: 107, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 26.4ms, 56 PlacesBefore, 56 PlacesAfterwards, 45 TransitionsBefore, 45 TransitionsAfterwards, 704 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 548 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 181, positive: 158, positive conditional: 0, positive unconditional: 158, negative: 23, negative conditional: 0, negative unconditional: 23, 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: 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] , Cache Queries: [ total: 181, positive: 158, positive conditional: 0, positive unconditional: 158, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 125, Positive cache size: 107, Positive conditional cache size: 0, Positive unconditional cache size: 107, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 168.7ms, 60 PlacesBefore, 60 PlacesAfterwards, 54 TransitionsBefore, 54 TransitionsAfterwards, 956 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 419 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 177, positive: 164, positive conditional: 0, positive unconditional: 164, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 177, positive: 162, positive conditional: 0, positive unconditional: 162, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 127, Positive cache size: 109, Positive conditional cache size: 0, Positive unconditional cache size: 109, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 91.2ms, 68 PlacesBefore, 68 PlacesAfterwards, 63 TransitionsBefore, 63 TransitionsAfterwards, 1158 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 540 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 208, positive: 194, positive conditional: 0, positive unconditional: 194, negative: 14, negative conditional: 0, negative unconditional: 14, 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: 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] , Cache Queries: [ total: 208, positive: 194, positive conditional: 0, positive unconditional: 194, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 127, Positive cache size: 109, Positive conditional cache size: 0, Positive unconditional cache size: 109, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 101.9ms, 68 PlacesBefore, 68 PlacesAfterwards, 63 TransitionsBefore, 63 TransitionsAfterwards, 1158 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 632 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 295, positive: 279, positive conditional: 0, positive unconditional: 279, negative: 16, negative conditional: 0, negative unconditional: 16, 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: 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] , Cache Queries: [ total: 295, positive: 279, positive conditional: 0, positive unconditional: 279, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 127, Positive cache size: 109, Positive conditional cache size: 0, Positive unconditional cache size: 109, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 788.9ms, 77 PlacesBefore, 77 PlacesAfterwards, 68 TransitionsBefore, 68 TransitionsAfterwards, 1226 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 1436 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 828, positive: 794, positive conditional: 0, positive unconditional: 794, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 9, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 828, positive: 785, positive conditional: 0, positive unconditional: 785, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 9, unknown conditional: 0, unknown unconditional: 9] , Statistics on independence cache: Total cache size (in pairs): 132, Positive cache size: 116, Positive conditional cache size: 0, Positive unconditional cache size: 116, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3291.2ms, 85 PlacesBefore, 82 PlacesAfterwards, 67 TransitionsBefore, 61 TransitionsAfterwards, 1194 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 6 TotalNumberOfCompositions, 1964 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1294, positive: 1243, positive conditional: 0, positive unconditional: 1243, negative: 51, negative conditional: 0, negative unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: 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] , Cache Queries: [ total: 1294, positive: 1239, positive conditional: 0, positive unconditional: 1239, negative: 51, negative conditional: 0, negative unconditional: 51, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 108, Positive cache size: 99, Positive conditional cache size: 0, Positive unconditional cache size: 99, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 102.8ms, 64 PlacesBefore, 62 PlacesAfterwards, 48 TransitionsBefore, 46 TransitionsAfterwards, 616 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 370 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 184, positive: 169, positive conditional: 0, positive unconditional: 169, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 19, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 19, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 184, positive: 152, positive conditional: 0, positive unconditional: 152, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 19, unknown conditional: 0, unknown unconditional: 19] , Statistics on independence cache: Total cache size (in pairs): 64, Positive cache size: 56, Positive conditional cache size: 0, Positive unconditional cache size: 56, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.4ms, 64 PlacesBefore, 60 PlacesAfterwards, 40 TransitionsBefore, 40 TransitionsAfterwards, 342 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: 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] , 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): 64, Positive cache size: 56, Positive conditional cache size: 0, Positive unconditional cache size: 56, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p1_EAX = 0; [L714] 0 int __unbuffered_p3_EAX = 0; [L716] 0 int __unbuffered_p3_EBX = 0; [L718] 0 int a = 0; [L720] 0 int b = 0; [L721] 0 _Bool main$tmp_guard0; [L722] 0 _Bool main$tmp_guard1; [L724] 0 int x = 0; [L726] 0 int y = 0; [L728] 0 int z = 0; [L729] 0 _Bool z$flush_delayed; [L730] 0 int z$mem_tmp; [L731] 0 _Bool z$r_buff0_thd0; [L732] 0 _Bool z$r_buff0_thd1; [L733] 0 _Bool z$r_buff0_thd2; [L734] 0 _Bool z$r_buff0_thd3; [L735] 0 _Bool z$r_buff0_thd4; [L736] 0 _Bool z$r_buff1_thd0; [L737] 0 _Bool z$r_buff1_thd1; [L738] 0 _Bool z$r_buff1_thd2; [L739] 0 _Bool z$r_buff1_thd3; [L740] 0 _Bool z$r_buff1_thd4; [L741] 0 _Bool z$read_delayed; [L742] 0 int *z$read_delayed_var; [L743] 0 int z$w_buff0; [L744] 0 _Bool z$w_buff0_used; [L745] 0 int z$w_buff1; [L746] 0 _Bool z$w_buff1_used; [L747] 0 _Bool weak$$choice0; [L748] 0 _Bool weak$$choice2; [L846] 0 pthread_t t1181; [L847] FCALL, FORK 0 pthread_create(&t1181, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L848] 0 pthread_t t1182; [L849] FCALL, FORK 0 pthread_create(&t1182, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L850] 0 pthread_t t1183; [L851] FCALL, FORK 0 pthread_create(&t1183, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L852] 0 pthread_t t1184; [L853] FCALL, FORK 0 pthread_create(&t1184, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L802] 4 z$w_buff1 = z$w_buff0 [L803] 4 z$w_buff0 = 2 [L804] 4 z$w_buff1_used = z$w_buff0_used [L805] 4 z$w_buff0_used = (_Bool)1 [L18] COND FALSE 4 !(!expression) [L807] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L808] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L809] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L810] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L811] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L812] 4 z$r_buff0_thd4 = (_Bool)1 [L815] 4 a = 1 [L818] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L821] 4 __unbuffered_p3_EBX = b VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L752] 1 b = 1 [L755] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L767] 2 x = 2 [L770] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L782] 3 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L785] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L824] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L824] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L825] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L825] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L826] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L826] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L827] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L827] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L828] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L828] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L788] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L788] EXPR 3 z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z [L788] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L788] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L789] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L789] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L790] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L790] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L791] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L791] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L792] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L792] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L760] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L762] 1 return 0; [L775] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L777] 2 return 0; [L795] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L797] 3 return 0; [L831] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L833] 4 return 0; [L855] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L3] COND FALSE 0 !(!cond) [L859] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L859] EXPR 0 z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z [L859] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L859] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L860] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L860] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L861] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L861] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L862] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L862] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L863] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L863] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L866] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L867] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L868] 0 z$flush_delayed = weak$$choice2 [L869] 0 z$mem_tmp = z [L870] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L870] 0 z = !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L871] EXPR 0 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L871] 0 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L872] EXPR 0 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L872] 0 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L873] EXPR 0 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L873] 0 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L874] EXPR 0 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L874] 0 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L875] EXPR 0 weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L875] 0 z$r_buff0_thd0 = weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L876] EXPR 0 weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L876] 0 z$r_buff1_thd0 = weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L877] 0 main$tmp_guard1 = !(x == 2 && z == 2 && __unbuffered_p1_EAX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) [L878] EXPR 0 z$flush_delayed ? z$mem_tmp : z [L878] 0 z = z$flush_delayed ? z$mem_tmp : z [L879] 0 z$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=52, weak$$choice2=255, x=2, y=1, z=2, z$flush_delayed=0, z$mem_tmp=2, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 116 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.5ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 19628.2ms, OverallIterations: 15, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1612.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7557.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 45 SDtfs, 41 SDslu, 23 SDs, 0 SdLazy, 333 SolverSat, 113 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 358.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 353.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=569occurred in iteration=11, InterpolantAutomatonStates: 72, 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: 46.6ms SsaConstructionTime, 394.2ms SatisfiabilityAnalysisTime, 913.7ms InterpolantComputationTime, 276 NumberOfCodeBlocks, 276 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 241 ConstructedInterpolants, 0 QuantifiedInterpolants, 1049 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...