/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe015_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 00:40:37,098 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 00:40:37,099 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 00:40:37,125 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 00:40:37,126 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 00:40:37,127 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 00:40:37,128 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 00:40:37,130 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 00:40:37,131 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 00:40:37,132 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 00:40:37,133 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 00:40:37,134 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 00:40:37,134 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 00:40:37,135 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 00:40:37,136 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 00:40:37,137 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 00:40:37,138 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 00:40:37,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 00:40:37,140 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 00:40:37,141 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 00:40:37,142 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 00:40:37,143 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 00:40:37,144 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 00:40:37,145 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 00:40:37,147 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 00:40:37,154 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 00:40:37,154 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 00:40:37,155 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 00:40:37,156 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-03-26 00:40:37,182 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 00:40:37,182 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 00:40:37,184 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 00:40:37,184 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 00:40:37,184 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 00:40:37,184 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 00:40:37,185 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 00:40:37,185 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 00:40:37,185 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 00:40:37,185 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 00:40:37,185 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 00:40:37,186 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 00:40:37,186 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 00:40:37,186 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 00:40:37,186 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 00:40:37,187 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 00:40:37,187 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 00:40:37,187 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 00:40:37,187 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 00:40:37,187 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 00:40:37,188 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 00:40:37,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 00:40:37,188 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 00:40:37,188 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 00:40:37,189 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 00:40:37,189 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 00:40:37,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 00:40:37,189 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-03-26 00:40:37,189 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 00:40:37,190 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 00:40:37,190 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 00:40:37,528 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 00:40:37,545 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 00:40:37,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 00:40:37,548 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 00:40:37,549 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 00:40:37,551 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_pso.opt.i [2021-03-26 00:40:37,621 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f1980b64/84a6d19e1e364f5ea5e38cf7503e2cd1/FLAGa3ab80a4f [2021-03-26 00:40:38,148 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 00:40:38,148 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_pso.opt.i [2021-03-26 00:40:38,170 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f1980b64/84a6d19e1e364f5ea5e38cf7503e2cd1/FLAGa3ab80a4f [2021-03-26 00:40:38,593 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f1980b64/84a6d19e1e364f5ea5e38cf7503e2cd1 [2021-03-26 00:40:38,596 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 00:40:38,598 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 00:40:38,601 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 00:40:38,601 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 00:40:38,604 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 00:40:38,605 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:40:38" (1/1) ... [2021-03-26 00:40:38,606 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a71d2a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:40:38, skipping insertion in model container [2021-03-26 00:40:38,606 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:40:38" (1/1) ... [2021-03-26 00:40:38,612 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 00:40:38,658 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 00:40:38,771 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/safe015_pso.opt.i[949,962] [2021-03-26 00:40:38,942 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:40:38,948 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 00:40:38,957 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/safe015_pso.opt.i[949,962] [2021-03-26 00:40:38,984 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:40:39,048 INFO L208 MainTranslator]: Completed translation [2021-03-26 00:40:39,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:40:39 WrapperNode [2021-03-26 00:40:39,048 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 00:40:39,049 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 00:40:39,050 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 00:40:39,050 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 00:40:39,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:40:39" (1/1) ... [2021-03-26 00:40:39,090 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:40:39" (1/1) ... [2021-03-26 00:40:39,112 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 00:40:39,113 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 00:40:39,113 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 00:40:39,113 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 00:40:39,119 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:40:39" (1/1) ... [2021-03-26 00:40:39,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:40:39" (1/1) ... [2021-03-26 00:40:39,124 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:40:39" (1/1) ... [2021-03-26 00:40:39,124 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:40:39" (1/1) ... [2021-03-26 00:40:39,129 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:40:39" (1/1) ... [2021-03-26 00:40:39,131 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:40:39" (1/1) ... [2021-03-26 00:40:39,132 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:40:39" (1/1) ... [2021-03-26 00:40:39,134 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 00:40:39,135 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 00:40:39,135 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 00:40:39,135 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 00:40:39,136 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:40:39" (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 [2021-03-26 00:40:39,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 00:40:39,192 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 00:40:39,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 00:40:39,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 00:40:39,193 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 00:40:39,193 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 00:40:39,194 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 00:40:39,194 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 00:40:39,194 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-26 00:40:39,194 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-26 00:40:39,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 00:40:39,194 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 00:40:39,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 00:40:39,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 00:40:39,196 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 00:40:39,561 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 00:40:39,561 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-26 00:40:39,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:40:39 BoogieIcfgContainer [2021-03-26 00:40:39,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 00:40:39,565 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 00:40:39,565 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 00:40:39,568 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 00:40:39,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 12:40:38" (1/3) ... [2021-03-26 00:40:39,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a76fc23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:40:39, skipping insertion in model container [2021-03-26 00:40:39,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:40:39" (2/3) ... [2021-03-26 00:40:39,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a76fc23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:40:39, skipping insertion in model container [2021-03-26 00:40:39,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:40:39" (3/3) ... [2021-03-26 00:40:39,571 INFO L111 eAbstractionObserver]: Analyzing ICFG safe015_pso.opt.i [2021-03-26 00:40:39,576 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 00:40:39,580 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 00:40:39,581 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 00:40:39,616 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,616 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,616 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,616 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,617 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,617 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,617 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,617 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,617 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,617 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,617 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,618 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,618 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,619 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,619 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,619 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,619 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,619 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,619 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,619 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,620 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,620 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,621 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,621 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,622 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,622 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,623 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,623 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,623 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,623 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,624 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,624 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,624 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,625 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,625 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,625 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,626 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,627 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,627 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,627 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,633 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,634 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,634 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,634 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,639 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,640 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,640 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,640 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:39,642 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 00:40:39,659 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-26 00:40:39,688 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 00:40:39,688 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 00:40:39,688 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 00:40:39,688 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 00:40:39,689 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 00:40:39,689 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 00:40:39,689 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 00:40:39,689 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 00:40:39,702 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 74 transitions, 163 flow [2021-03-26 00:40:39,749 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2021-03-26 00:40:39,749 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:40:39,753 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 71 events. 2/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-03-26 00:40:39,753 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 74 transitions, 163 flow [2021-03-26 00:40:39,765 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 59 transitions, 127 flow [2021-03-26 00:40:39,766 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:40:39,779 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 59 transitions, 127 flow [2021-03-26 00:40:39,782 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 59 transitions, 127 flow [2021-03-26 00:40:39,784 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 59 transitions, 127 flow [2021-03-26 00:40:39,829 INFO L129 PetriNetUnfolder]: 1/59 cut-off events. [2021-03-26 00:40:39,829 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:40:39,830 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 59 events. 1/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-03-26 00:40:39,833 INFO L142 LiptonReduction]: Number of co-enabled transitions 864 [2021-03-26 00:40:41,295 INFO L154 LiptonReduction]: Checked pairs total: 1194 [2021-03-26 00:40:41,295 INFO L156 LiptonReduction]: Total number of compositions: 40 [2021-03-26 00:40:41,298 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1533 [2021-03-26 00:40:41,313 INFO L129 PetriNetUnfolder]: 0/19 cut-off events. [2021-03-26 00:40:41,313 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:40:41,314 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:40:41,314 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:40:41,314 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:40:41,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:40:41,319 INFO L82 PathProgramCache]: Analyzing trace with hash 509991216, now seen corresponding path program 1 times [2021-03-26 00:40:41,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:40:41,326 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704025995] [2021-03-26 00:40:41,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:40:41,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:40:41,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:41,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:40:41,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:41,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:41,512 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:40:41,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:40:41,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:41,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:41,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:40:41,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704025995] [2021-03-26 00:40:41,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:40:41,535 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:40:41,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671114603] [2021-03-26 00:40:41,545 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:40:41,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:40:41,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:40:41,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:40:41,556 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 114 [2021-03-26 00:40:41,564 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 21 transitions, 51 flow. Second operand has 5 states, 5 states have (on average 82.8) internal successors, (414), 5 states have internal predecessors, (414), 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) [2021-03-26 00:40:41,564 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:40:41,564 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 114 [2021-03-26 00:40:41,565 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:40:41,698 INFO L129 PetriNetUnfolder]: 178/361 cut-off events. [2021-03-26 00:40:41,698 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:40:41,700 INFO L84 FinitePrefix]: Finished finitePrefix Result has 681 conditions, 361 events. 178/361 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 1696 event pairs, 14 based on Foata normal form. 37/384 useless extension candidates. Maximal degree in co-relation 667. Up to 110 conditions per place. [2021-03-26 00:40:41,704 INFO L132 encePairwiseOnDemand]: 105/114 looper letters, 13 selfloop transitions, 7 changer transitions 17/48 dead transitions. [2021-03-26 00:40:41,704 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 48 transitions, 179 flow [2021-03-26 00:40:41,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 00:40:41,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 00:40:41,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 614 transitions. [2021-03-26 00:40:41,721 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7694235588972431 [2021-03-26 00:40:41,722 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 614 transitions. [2021-03-26 00:40:41,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 614 transitions. [2021-03-26 00:40:41,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:40:41,727 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 614 transitions. [2021-03-26 00:40:41,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 87.71428571428571) internal successors, (614), 7 states have internal predecessors, (614), 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) [2021-03-26 00:40:41,742 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 114.0) internal successors, (912), 8 states have internal predecessors, (912), 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) [2021-03-26 00:40:41,743 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 114.0) internal successors, (912), 8 states have internal predecessors, (912), 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) [2021-03-26 00:40:41,745 INFO L185 Difference]: Start difference. First operand has 31 places, 21 transitions, 51 flow. Second operand 7 states and 614 transitions. [2021-03-26 00:40:41,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 48 transitions, 179 flow [2021-03-26 00:40:41,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 48 transitions, 176 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-26 00:40:41,748 INFO L241 Difference]: Finished difference. Result has 40 places, 26 transitions, 116 flow [2021-03-26 00:40:41,750 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=116, PETRI_PLACES=40, PETRI_TRANSITIONS=26} [2021-03-26 00:40:41,751 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 9 predicate places. [2021-03-26 00:40:41,751 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:40:41,751 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 26 transitions, 116 flow [2021-03-26 00:40:41,752 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 26 transitions, 116 flow [2021-03-26 00:40:41,752 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 26 transitions, 116 flow [2021-03-26 00:40:41,775 INFO L129 PetriNetUnfolder]: 93/221 cut-off events. [2021-03-26 00:40:41,775 INFO L130 PetriNetUnfolder]: For 172/189 co-relation queries the response was YES. [2021-03-26 00:40:41,777 INFO L84 FinitePrefix]: Finished finitePrefix Result has 603 conditions, 221 events. 93/221 cut-off events. For 172/189 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1028 event pairs, 26 based on Foata normal form. 6/208 useless extension candidates. Maximal degree in co-relation 587. Up to 91 conditions per place. [2021-03-26 00:40:41,781 INFO L142 LiptonReduction]: Number of co-enabled transitions 144 [2021-03-26 00:40:42,204 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-03-26 00:40:42,393 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-03-26 00:40:42,457 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 00:40:42,457 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 00:40:42,457 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 706 [2021-03-26 00:40:42,458 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 23 transitions, 110 flow [2021-03-26 00:40:42,459 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 82.8) internal successors, (414), 5 states have internal predecessors, (414), 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) [2021-03-26 00:40:42,459 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:40:42,459 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:40:42,459 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 00:40:42,459 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:40:42,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:40:42,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1370680032, now seen corresponding path program 1 times [2021-03-26 00:40:42,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:40:42,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653485966] [2021-03-26 00:40:42,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:40:42,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:40:42,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:42,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:40:42,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:42,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:42,524 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:40:42,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:40:42,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:42,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:42,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:40:42,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653485966] [2021-03-26 00:40:42,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:40:42,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:40:42,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871373953] [2021-03-26 00:40:42,539 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:40:42,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:40:42,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:40:42,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:40:42,541 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 117 [2021-03-26 00:40:42,542 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 23 transitions, 110 flow. Second operand has 5 states, 5 states have (on average 83.0) internal successors, (415), 5 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:40:42,542 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:40:42,542 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 117 [2021-03-26 00:40:42,542 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:40:42,625 INFO L129 PetriNetUnfolder]: 106/259 cut-off events. [2021-03-26 00:40:42,626 INFO L130 PetriNetUnfolder]: For 417/493 co-relation queries the response was YES. [2021-03-26 00:40:42,626 INFO L84 FinitePrefix]: Finished finitePrefix Result has 912 conditions, 259 events. 106/259 cut-off events. For 417/493 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1258 event pairs, 2 based on Foata normal form. 28/281 useless extension candidates. Maximal degree in co-relation 897. Up to 98 conditions per place. [2021-03-26 00:40:42,628 INFO L132 encePairwiseOnDemand]: 108/117 looper letters, 15 selfloop transitions, 11 changer transitions 17/52 dead transitions. [2021-03-26 00:40:42,628 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 52 transitions, 372 flow [2021-03-26 00:40:42,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 00:40:42,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 00:40:42,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 609 transitions. [2021-03-26 00:40:42,630 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7435897435897436 [2021-03-26 00:40:42,630 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 609 transitions. [2021-03-26 00:40:42,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 609 transitions. [2021-03-26 00:40:42,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:40:42,631 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 609 transitions. [2021-03-26 00:40:42,632 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 87.0) internal successors, (609), 7 states have internal predecessors, (609), 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) [2021-03-26 00:40:42,633 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 117.0) internal successors, (936), 8 states have internal predecessors, (936), 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) [2021-03-26 00:40:42,634 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 117.0) internal successors, (936), 8 states have internal predecessors, (936), 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) [2021-03-26 00:40:42,634 INFO L185 Difference]: Start difference. First operand has 34 places, 23 transitions, 110 flow. Second operand 7 states and 609 transitions. [2021-03-26 00:40:42,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 52 transitions, 372 flow [2021-03-26 00:40:42,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 52 transitions, 364 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-03-26 00:40:42,638 INFO L241 Difference]: Finished difference. Result has 44 places, 30 transitions, 219 flow [2021-03-26 00:40:42,638 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=219, PETRI_PLACES=44, PETRI_TRANSITIONS=30} [2021-03-26 00:40:42,638 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 13 predicate places. [2021-03-26 00:40:42,638 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:40:42,639 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 30 transitions, 219 flow [2021-03-26 00:40:42,640 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 30 transitions, 219 flow [2021-03-26 00:40:42,640 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 30 transitions, 219 flow [2021-03-26 00:40:42,653 INFO L129 PetriNetUnfolder]: 66/172 cut-off events. [2021-03-26 00:40:42,653 INFO L130 PetriNetUnfolder]: For 406/426 co-relation queries the response was YES. [2021-03-26 00:40:42,653 INFO L84 FinitePrefix]: Finished finitePrefix Result has 669 conditions, 172 events. 66/172 cut-off events. For 406/426 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 748 event pairs, 13 based on Foata normal form. 0/162 useless extension candidates. Maximal degree in co-relation 650. Up to 58 conditions per place. [2021-03-26 00:40:42,655 INFO L142 LiptonReduction]: Number of co-enabled transitions 174 [2021-03-26 00:40:42,678 INFO L154 LiptonReduction]: Checked pairs total: 92 [2021-03-26 00:40:42,678 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:40:42,678 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 40 [2021-03-26 00:40:42,681 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 30 transitions, 219 flow [2021-03-26 00:40:42,682 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 83.0) internal successors, (415), 5 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:40:42,682 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:40:42,682 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:40:42,682 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 00:40:42,683 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:40:42,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:40:42,683 INFO L82 PathProgramCache]: Analyzing trace with hash 836745912, now seen corresponding path program 1 times [2021-03-26 00:40:42,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:40:42,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714882885] [2021-03-26 00:40:42,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:40:42,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:40:42,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:42,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:42,767 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:40:42,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:40:42,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:42,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:42,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:40:42,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714882885] [2021-03-26 00:40:42,781 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:40:42,781 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:40:42,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065004448] [2021-03-26 00:40:42,781 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:40:42,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:40:42,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:40:42,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:40:42,783 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 117 [2021-03-26 00:40:42,784 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 30 transitions, 219 flow. Second operand has 5 states, 5 states have (on average 83.0) internal successors, (415), 5 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:40:42,784 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:40:42,784 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 117 [2021-03-26 00:40:42,784 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:40:42,867 INFO L129 PetriNetUnfolder]: 79/210 cut-off events. [2021-03-26 00:40:42,867 INFO L130 PetriNetUnfolder]: For 830/967 co-relation queries the response was YES. [2021-03-26 00:40:42,869 INFO L84 FinitePrefix]: Finished finitePrefix Result has 981 conditions, 210 events. 79/210 cut-off events. For 830/967 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 957 event pairs, 2 based on Foata normal form. 21/229 useless extension candidates. Maximal degree in co-relation 960. Up to 77 conditions per place. [2021-03-26 00:40:42,871 INFO L132 encePairwiseOnDemand]: 108/117 looper letters, 16 selfloop transitions, 21 changer transitions 12/58 dead transitions. [2021-03-26 00:40:42,871 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 58 transitions, 566 flow [2021-03-26 00:40:42,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 00:40:42,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 00:40:42,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 610 transitions. [2021-03-26 00:40:42,874 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7448107448107448 [2021-03-26 00:40:42,874 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 610 transitions. [2021-03-26 00:40:42,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 610 transitions. [2021-03-26 00:40:42,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:40:42,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 610 transitions. [2021-03-26 00:40:42,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 87.14285714285714) internal successors, (610), 7 states have internal predecessors, (610), 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) [2021-03-26 00:40:42,877 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 117.0) internal successors, (936), 8 states have internal predecessors, (936), 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) [2021-03-26 00:40:42,878 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 117.0) internal successors, (936), 8 states have internal predecessors, (936), 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) [2021-03-26 00:40:42,878 INFO L185 Difference]: Start difference. First operand has 41 places, 30 transitions, 219 flow. Second operand 7 states and 610 transitions. [2021-03-26 00:40:42,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 58 transitions, 566 flow [2021-03-26 00:40:42,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 58 transitions, 548 flow, removed 6 selfloop flow, removed 2 redundant places. [2021-03-26 00:40:42,885 INFO L241 Difference]: Finished difference. Result has 51 places, 42 transitions, 430 flow [2021-03-26 00:40:42,885 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=430, PETRI_PLACES=51, PETRI_TRANSITIONS=42} [2021-03-26 00:40:42,885 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 20 predicate places. [2021-03-26 00:40:42,885 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:40:42,886 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 42 transitions, 430 flow [2021-03-26 00:40:42,887 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 42 transitions, 430 flow [2021-03-26 00:40:42,887 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 42 transitions, 430 flow [2021-03-26 00:40:42,901 INFO L129 PetriNetUnfolder]: 57/151 cut-off events. [2021-03-26 00:40:42,902 INFO L130 PetriNetUnfolder]: For 582/638 co-relation queries the response was YES. [2021-03-26 00:40:42,903 INFO L84 FinitePrefix]: Finished finitePrefix Result has 760 conditions, 151 events. 57/151 cut-off events. For 582/638 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 616 event pairs, 3 based on Foata normal form. 0/143 useless extension candidates. Maximal degree in co-relation 735. Up to 56 conditions per place. [2021-03-26 00:40:42,904 INFO L142 LiptonReduction]: Number of co-enabled transitions 214 [2021-03-26 00:40:42,915 INFO L154 LiptonReduction]: Checked pairs total: 149 [2021-03-26 00:40:42,915 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:40:42,916 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31 [2021-03-26 00:40:42,917 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 42 transitions, 430 flow [2021-03-26 00:40:42,917 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 83.0) internal successors, (415), 5 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:40:42,917 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:40:42,917 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:40:42,918 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 00:40:42,918 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:40:42,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:40:42,918 INFO L82 PathProgramCache]: Analyzing trace with hash 1325592192, now seen corresponding path program 1 times [2021-03-26 00:40:42,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:40:42,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229272439] [2021-03-26 00:40:42,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:40:42,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:40:42,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:42,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:40:42,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:42,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:42,997 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:40:42,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:40:43,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:43,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:43,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:40:43,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229272439] [2021-03-26 00:40:43,013 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:40:43,013 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:40:43,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896175261] [2021-03-26 00:40:43,014 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:40:43,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:40:43,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:40:43,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:40:43,016 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 117 [2021-03-26 00:40:43,017 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 42 transitions, 430 flow. Second operand has 5 states, 5 states have (on average 83.2) internal successors, (416), 5 states have internal predecessors, (416), 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) [2021-03-26 00:40:43,017 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:40:43,017 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 117 [2021-03-26 00:40:43,017 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:40:43,086 INFO L129 PetriNetUnfolder]: 56/164 cut-off events. [2021-03-26 00:40:43,086 INFO L130 PetriNetUnfolder]: For 933/1109 co-relation queries the response was YES. [2021-03-26 00:40:43,087 INFO L84 FinitePrefix]: Finished finitePrefix Result has 931 conditions, 164 events. 56/164 cut-off events. For 933/1109 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 703 event pairs, 0 based on Foata normal form. 24/186 useless extension candidates. Maximal degree in co-relation 904. Up to 64 conditions per place. [2021-03-26 00:40:43,088 INFO L132 encePairwiseOnDemand]: 108/117 looper letters, 22 selfloop transitions, 24 changer transitions 11/66 dead transitions. [2021-03-26 00:40:43,088 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 66 transitions, 823 flow [2021-03-26 00:40:43,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 00:40:43,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 00:40:43,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 604 transitions. [2021-03-26 00:40:43,090 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7374847374847375 [2021-03-26 00:40:43,090 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 604 transitions. [2021-03-26 00:40:43,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 604 transitions. [2021-03-26 00:40:43,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:40:43,091 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 604 transitions. [2021-03-26 00:40:43,092 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 86.28571428571429) internal successors, (604), 7 states have internal predecessors, (604), 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) [2021-03-26 00:40:43,094 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 117.0) internal successors, (936), 8 states have internal predecessors, (936), 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) [2021-03-26 00:40:43,094 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 117.0) internal successors, (936), 8 states have internal predecessors, (936), 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) [2021-03-26 00:40:43,094 INFO L185 Difference]: Start difference. First operand has 48 places, 42 transitions, 430 flow. Second operand 7 states and 604 transitions. [2021-03-26 00:40:43,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 66 transitions, 823 flow [2021-03-26 00:40:43,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 66 transitions, 799 flow, removed 12 selfloop flow, removed 5 redundant places. [2021-03-26 00:40:43,099 INFO L241 Difference]: Finished difference. Result has 55 places, 50 transitions, 640 flow [2021-03-26 00:40:43,099 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=640, PETRI_PLACES=55, PETRI_TRANSITIONS=50} [2021-03-26 00:40:43,099 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 24 predicate places. [2021-03-26 00:40:43,100 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:40:43,100 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 50 transitions, 640 flow [2021-03-26 00:40:43,100 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 50 transitions, 640 flow [2021-03-26 00:40:43,101 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 52 places, 50 transitions, 640 flow [2021-03-26 00:40:43,113 INFO L129 PetriNetUnfolder]: 43/127 cut-off events. [2021-03-26 00:40:43,113 INFO L130 PetriNetUnfolder]: For 711/754 co-relation queries the response was YES. [2021-03-26 00:40:43,114 INFO L84 FinitePrefix]: Finished finitePrefix Result has 743 conditions, 127 events. 43/127 cut-off events. For 711/754 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 522 event pairs, 0 based on Foata normal form. 13/138 useless extension candidates. Maximal degree in co-relation 715. Up to 48 conditions per place. [2021-03-26 00:40:43,116 INFO L142 LiptonReduction]: Number of co-enabled transitions 244 [2021-03-26 00:40:43,124 INFO L154 LiptonReduction]: Checked pairs total: 188 [2021-03-26 00:40:43,124 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:40:43,124 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 24 [2021-03-26 00:40:43,125 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 50 transitions, 640 flow [2021-03-26 00:40:43,126 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 83.2) internal successors, (416), 5 states have internal predecessors, (416), 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) [2021-03-26 00:40:43,126 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:40:43,126 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:40:43,126 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 00:40:43,126 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:40:43,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:40:43,127 INFO L82 PathProgramCache]: Analyzing trace with hash 1170559470, now seen corresponding path program 1 times [2021-03-26 00:40:43,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:40:43,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092789101] [2021-03-26 00:40:43,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:40:43,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:40:43,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:43,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:43,203 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-26 00:40:43,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 00:40:43,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:43,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:40:43,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:40:43,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092789101] [2021-03-26 00:40:43,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:40:43,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:40:43,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300195586] [2021-03-26 00:40:43,211 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:40:43,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:40:43,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:40:43,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:40:43,212 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 117 [2021-03-26 00:40:43,212 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 50 transitions, 640 flow. Second operand has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 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) [2021-03-26 00:40:43,213 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:40:43,213 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 117 [2021-03-26 00:40:43,213 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:40:43,270 INFO L129 PetriNetUnfolder]: 133/325 cut-off events. [2021-03-26 00:40:43,271 INFO L130 PetriNetUnfolder]: For 1523/1678 co-relation queries the response was YES. [2021-03-26 00:40:43,272 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1320 conditions, 325 events. 133/325 cut-off events. For 1523/1678 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 1843 event pairs, 31 based on Foata normal form. 52/365 useless extension candidates. Maximal degree in co-relation 1290. Up to 159 conditions per place. [2021-03-26 00:40:43,274 INFO L132 encePairwiseOnDemand]: 111/117 looper letters, 8 selfloop transitions, 8 changer transitions 0/60 dead transitions. [2021-03-26 00:40:43,274 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 60 transitions, 692 flow [2021-03-26 00:40:43,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:40:43,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:40:43,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 448 transitions. [2021-03-26 00:40:43,276 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7658119658119659 [2021-03-26 00:40:43,276 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 448 transitions. [2021-03-26 00:40:43,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 448 transitions. [2021-03-26 00:40:43,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:40:43,277 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 448 transitions. [2021-03-26 00:40:43,278 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 89.6) internal successors, (448), 5 states have internal predecessors, (448), 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) [2021-03-26 00:40:43,279 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 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) [2021-03-26 00:40:43,279 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 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) [2021-03-26 00:40:43,279 INFO L185 Difference]: Start difference. First operand has 52 places, 50 transitions, 640 flow. Second operand 5 states and 448 transitions. [2021-03-26 00:40:43,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 60 transitions, 692 flow [2021-03-26 00:40:43,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 60 transitions, 677 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-03-26 00:40:43,286 INFO L241 Difference]: Finished difference. Result has 56 places, 57 transitions, 685 flow [2021-03-26 00:40:43,286 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=625, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=685, PETRI_PLACES=56, PETRI_TRANSITIONS=57} [2021-03-26 00:40:43,287 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 25 predicate places. [2021-03-26 00:40:43,287 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:40:43,287 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 57 transitions, 685 flow [2021-03-26 00:40:43,287 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 57 transitions, 685 flow [2021-03-26 00:40:43,288 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 56 places, 57 transitions, 685 flow [2021-03-26 00:40:43,328 INFO L129 PetriNetUnfolder]: 131/327 cut-off events. [2021-03-26 00:40:43,328 INFO L130 PetriNetUnfolder]: For 1263/1358 co-relation queries the response was YES. [2021-03-26 00:40:43,330 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1428 conditions, 327 events. 131/327 cut-off events. For 1263/1358 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 1956 event pairs, 31 based on Foata normal form. 23/333 useless extension candidates. Maximal degree in co-relation 1397. Up to 181 conditions per place. [2021-03-26 00:40:43,333 INFO L142 LiptonReduction]: Number of co-enabled transitions 394 [2021-03-26 00:40:43,344 INFO L154 LiptonReduction]: Checked pairs total: 38 [2021-03-26 00:40:43,344 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 00:40:43,345 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 58 [2021-03-26 00:40:43,346 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 56 transitions, 679 flow [2021-03-26 00:40:43,346 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 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) [2021-03-26 00:40:43,346 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:40:43,346 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:40:43,347 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 00:40:43,347 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:40:43,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:40:43,347 INFO L82 PathProgramCache]: Analyzing trace with hash -219544953, now seen corresponding path program 1 times [2021-03-26 00:40:43,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:40:43,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267332792] [2021-03-26 00:40:43,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:40:43,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:40:43,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:43,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:43,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:43,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:43,409 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-26 00:40:43,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 00:40:43,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:43,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:40:43,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:40:43,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267332792] [2021-03-26 00:40:43,416 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:40:43,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:40:43,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591878936] [2021-03-26 00:40:43,417 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:40:43,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:40:43,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:40:43,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:40:43,418 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 117 [2021-03-26 00:40:43,418 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 56 transitions, 679 flow. Second operand has 5 states, 5 states have (on average 86.8) internal successors, (434), 5 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:40:43,419 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:40:43,419 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 117 [2021-03-26 00:40:43,419 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:40:43,476 INFO L129 PetriNetUnfolder]: 83/225 cut-off events. [2021-03-26 00:40:43,476 INFO L130 PetriNetUnfolder]: For 1224/1375 co-relation queries the response was YES. [2021-03-26 00:40:43,477 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1170 conditions, 225 events. 83/225 cut-off events. For 1224/1375 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1149 event pairs, 3 based on Foata normal form. 58/279 useless extension candidates. Maximal degree in co-relation 1137. Up to 127 conditions per place. [2021-03-26 00:40:43,479 INFO L132 encePairwiseOnDemand]: 111/117 looper letters, 5 selfloop transitions, 11 changer transitions 3/63 dead transitions. [2021-03-26 00:40:43,479 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 63 transitions, 757 flow [2021-03-26 00:40:43,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 00:40:43,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 00:40:43,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 537 transitions. [2021-03-26 00:40:43,481 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7649572649572649 [2021-03-26 00:40:43,481 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 537 transitions. [2021-03-26 00:40:43,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 537 transitions. [2021-03-26 00:40:43,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:40:43,481 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 537 transitions. [2021-03-26 00:40:43,482 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 89.5) internal successors, (537), 6 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:40:43,483 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 117.0) internal successors, (819), 7 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) [2021-03-26 00:40:43,484 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 117.0) internal successors, (819), 7 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) [2021-03-26 00:40:43,484 INFO L185 Difference]: Start difference. First operand has 56 places, 56 transitions, 679 flow. Second operand 6 states and 537 transitions. [2021-03-26 00:40:43,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 63 transitions, 757 flow [2021-03-26 00:40:43,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 63 transitions, 745 flow, removed 4 selfloop flow, removed 3 redundant places. [2021-03-26 00:40:43,489 INFO L241 Difference]: Finished difference. Result has 59 places, 60 transitions, 737 flow [2021-03-26 00:40:43,489 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=649, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=737, PETRI_PLACES=59, PETRI_TRANSITIONS=60} [2021-03-26 00:40:43,490 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 28 predicate places. [2021-03-26 00:40:43,490 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:40:43,490 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 60 transitions, 737 flow [2021-03-26 00:40:43,490 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 60 transitions, 737 flow [2021-03-26 00:40:43,491 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 60 transitions, 737 flow [2021-03-26 00:40:43,509 INFO L129 PetriNetUnfolder]: 79/225 cut-off events. [2021-03-26 00:40:43,509 INFO L130 PetriNetUnfolder]: For 948/1001 co-relation queries the response was YES. [2021-03-26 00:40:43,510 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1208 conditions, 225 events. 79/225 cut-off events. For 948/1001 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1213 event pairs, 3 based on Foata normal form. 6/226 useless extension candidates. Maximal degree in co-relation 1175. Up to 127 conditions per place. [2021-03-26 00:40:43,512 INFO L142 LiptonReduction]: Number of co-enabled transitions 306 [2021-03-26 00:40:43,525 INFO L154 LiptonReduction]: Checked pairs total: 24 [2021-03-26 00:40:43,525 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 00:40:43,525 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 35 [2021-03-26 00:40:43,528 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 59 transitions, 729 flow [2021-03-26 00:40:43,528 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 86.8) internal successors, (434), 5 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:40:43,528 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:40:43,529 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:40:43,529 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 00:40:43,529 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:40:43,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:40:43,530 INFO L82 PathProgramCache]: Analyzing trace with hash 770730608, now seen corresponding path program 1 times [2021-03-26 00:40:43,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:40:43,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832344458] [2021-03-26 00:40:43,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:40:43,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:40:43,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:43,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:40:43,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:43,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:43,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:43,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:43,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:40:43,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832344458] [2021-03-26 00:40:43,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:40:43,590 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:40:43,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299317839] [2021-03-26 00:40:43,591 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:40:43,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:40:43,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:40:43,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:40:43,592 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 117 [2021-03-26 00:40:43,592 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 59 transitions, 729 flow. Second operand has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 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) [2021-03-26 00:40:43,592 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:40:43,592 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 117 [2021-03-26 00:40:43,592 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:40:43,637 INFO L129 PetriNetUnfolder]: 81/225 cut-off events. [2021-03-26 00:40:43,637 INFO L130 PetriNetUnfolder]: For 1365/1466 co-relation queries the response was YES. [2021-03-26 00:40:43,638 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1292 conditions, 225 events. 81/225 cut-off events. For 1365/1466 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1090 event pairs, 6 based on Foata normal form. 11/231 useless extension candidates. Maximal degree in co-relation 1257. Up to 115 conditions per place. [2021-03-26 00:40:43,640 INFO L132 encePairwiseOnDemand]: 113/117 looper letters, 8 selfloop transitions, 12 changer transitions 2/59 dead transitions. [2021-03-26 00:40:43,640 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 59 transitions, 775 flow [2021-03-26 00:40:43,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:40:43,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:40:43,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 486 transitions. [2021-03-26 00:40:43,642 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8307692307692308 [2021-03-26 00:40:43,642 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 486 transitions. [2021-03-26 00:40:43,642 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 486 transitions. [2021-03-26 00:40:43,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:40:43,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 486 transitions. [2021-03-26 00:40:43,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 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) [2021-03-26 00:40:43,644 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 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) [2021-03-26 00:40:43,644 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 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) [2021-03-26 00:40:43,644 INFO L185 Difference]: Start difference. First operand has 59 places, 59 transitions, 729 flow. Second operand 5 states and 486 transitions. [2021-03-26 00:40:43,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 59 transitions, 775 flow [2021-03-26 00:40:43,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 59 transitions, 735 flow, removed 18 selfloop flow, removed 4 redundant places. [2021-03-26 00:40:43,651 INFO L241 Difference]: Finished difference. Result has 60 places, 56 transitions, 705 flow [2021-03-26 00:40:43,651 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=663, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=705, PETRI_PLACES=60, PETRI_TRANSITIONS=56} [2021-03-26 00:40:43,652 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 29 predicate places. [2021-03-26 00:40:43,652 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:40:43,652 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 56 transitions, 705 flow [2021-03-26 00:40:43,652 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 56 transitions, 705 flow [2021-03-26 00:40:43,653 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 56 transitions, 705 flow [2021-03-26 00:40:43,669 INFO L129 PetriNetUnfolder]: 78/214 cut-off events. [2021-03-26 00:40:43,669 INFO L130 PetriNetUnfolder]: For 818/854 co-relation queries the response was YES. [2021-03-26 00:40:43,670 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1083 conditions, 214 events. 78/214 cut-off events. For 818/854 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1042 event pairs, 5 based on Foata normal form. 3/212 useless extension candidates. Maximal degree in co-relation 1050. Up to 78 conditions per place. [2021-03-26 00:40:43,672 INFO L142 LiptonReduction]: Number of co-enabled transitions 218 [2021-03-26 00:40:43,830 INFO L154 LiptonReduction]: Checked pairs total: 15 [2021-03-26 00:40:43,830 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 00:40:43,830 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 178 [2021-03-26 00:40:43,831 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 54 transitions, 701 flow [2021-03-26 00:40:43,831 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 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) [2021-03-26 00:40:43,831 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:40:43,831 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:40:43,832 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 00:40:43,832 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:40:43,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:40:43,832 INFO L82 PathProgramCache]: Analyzing trace with hash -2117125607, now seen corresponding path program 1 times [2021-03-26 00:40:43,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:40:43,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807806513] [2021-03-26 00:40:43,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:40:43,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:40:43,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:43,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:43,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:43,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:43,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:43,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:43,896 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-26 00:40:43,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 00:40:43,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:43,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:40:43,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:40:43,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807806513] [2021-03-26 00:40:43,904 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:40:43,904 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 00:40:43,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948322250] [2021-03-26 00:40:43,905 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 00:40:43,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:40:43,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 00:40:43,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-26 00:40:43,906 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 119 [2021-03-26 00:40:43,906 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 54 transitions, 701 flow. Second operand has 6 states, 6 states have (on average 86.83333333333333) internal successors, (521), 6 states have internal predecessors, (521), 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) [2021-03-26 00:40:43,906 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:40:43,906 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 119 [2021-03-26 00:40:43,906 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:40:43,947 INFO L129 PetriNetUnfolder]: 62/156 cut-off events. [2021-03-26 00:40:43,947 INFO L130 PetriNetUnfolder]: For 1299/1478 co-relation queries the response was YES. [2021-03-26 00:40:43,948 INFO L84 FinitePrefix]: Finished finitePrefix Result has 926 conditions, 156 events. 62/156 cut-off events. For 1299/1478 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 637 event pairs, 0 based on Foata normal form. 54/203 useless extension candidates. Maximal degree in co-relation 891. Up to 49 conditions per place. [2021-03-26 00:40:43,948 INFO L132 encePairwiseOnDemand]: 114/119 looper letters, 1 selfloop transitions, 10 changer transitions 24/54 dead transitions. [2021-03-26 00:40:43,948 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 54 transitions, 723 flow [2021-03-26 00:40:43,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:40:43,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:40:43,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 442 transitions. [2021-03-26 00:40:43,950 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7428571428571429 [2021-03-26 00:40:43,950 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 442 transitions. [2021-03-26 00:40:43,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 442 transitions. [2021-03-26 00:40:43,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:40:43,951 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 442 transitions. [2021-03-26 00:40:43,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 88.4) internal successors, (442), 5 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:40:43,952 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 119.0) internal successors, (714), 6 states have internal predecessors, (714), 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) [2021-03-26 00:40:43,954 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 119.0) internal successors, (714), 6 states have internal predecessors, (714), 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) [2021-03-26 00:40:43,954 INFO L185 Difference]: Start difference. First operand has 56 places, 54 transitions, 701 flow. Second operand 5 states and 442 transitions. [2021-03-26 00:40:43,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 54 transitions, 723 flow [2021-03-26 00:40:43,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 54 transitions, 681 flow, removed 15 selfloop flow, removed 5 redundant places. [2021-03-26 00:40:43,959 INFO L241 Difference]: Finished difference. Result has 56 places, 30 transitions, 337 flow [2021-03-26 00:40:43,959 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=659, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=337, PETRI_PLACES=56, PETRI_TRANSITIONS=30} [2021-03-26 00:40:43,960 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 25 predicate places. [2021-03-26 00:40:43,960 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:40:43,960 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 30 transitions, 337 flow [2021-03-26 00:40:43,960 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 30 transitions, 337 flow [2021-03-26 00:40:43,961 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 56 places, 30 transitions, 337 flow [2021-03-26 00:40:43,965 INFO L129 PetriNetUnfolder]: 12/47 cut-off events. [2021-03-26 00:40:43,965 INFO L130 PetriNetUnfolder]: For 192/199 co-relation queries the response was YES. [2021-03-26 00:40:43,965 INFO L84 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 47 events. 12/47 cut-off events. For 192/199 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 104 event pairs, 0 based on Foata normal form. 2/48 useless extension candidates. Maximal degree in co-relation 243. Up to 16 conditions per place. [2021-03-26 00:40:43,966 INFO L142 LiptonReduction]: Number of co-enabled transitions 32 [2021-03-26 00:40:43,993 INFO L154 LiptonReduction]: Checked pairs total: 4 [2021-03-26 00:40:43,993 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 00:40:43,993 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 33 [2021-03-26 00:40:43,994 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 30 transitions, 352 flow [2021-03-26 00:40:43,994 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 86.83333333333333) internal successors, (521), 6 states have internal predecessors, (521), 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) [2021-03-26 00:40:43,994 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:40:43,994 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:40:43,994 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 00:40:43,994 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:40:43,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:40:43,995 INFO L82 PathProgramCache]: Analyzing trace with hash -1935163348, now seen corresponding path program 1 times [2021-03-26 00:40:43,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:40:43,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221883304] [2021-03-26 00:40:43,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:40:44,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:40:44,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:44,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:44,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:44,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:44,045 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:40:44,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:40:44,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:40:44,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221883304] [2021-03-26 00:40:44,055 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:40:44,055 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:40:44,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186881091] [2021-03-26 00:40:44,056 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:40:44,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:40:44,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:40:44,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:40:44,057 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 120 [2021-03-26 00:40:44,057 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 30 transitions, 352 flow. Second operand has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 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) [2021-03-26 00:40:44,057 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:40:44,057 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 120 [2021-03-26 00:40:44,058 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:40:44,089 INFO L129 PetriNetUnfolder]: 16/62 cut-off events. [2021-03-26 00:40:44,090 INFO L130 PetriNetUnfolder]: For 323/333 co-relation queries the response was YES. [2021-03-26 00:40:44,090 INFO L84 FinitePrefix]: Finished finitePrefix Result has 426 conditions, 62 events. 16/62 cut-off events. For 323/333 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 184 event pairs, 0 based on Foata normal form. 6/67 useless extension candidates. Maximal degree in co-relation 393. Up to 25 conditions per place. [2021-03-26 00:40:44,090 INFO L132 encePairwiseOnDemand]: 111/120 looper letters, 1 selfloop transitions, 8 changer transitions 12/34 dead transitions. [2021-03-26 00:40:44,090 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 34 transitions, 468 flow [2021-03-26 00:40:44,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:40:44,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:40:44,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 449 transitions. [2021-03-26 00:40:44,092 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7483333333333333 [2021-03-26 00:40:44,092 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 449 transitions. [2021-03-26 00:40:44,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 449 transitions. [2021-03-26 00:40:44,093 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:40:44,093 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 449 transitions. [2021-03-26 00:40:44,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 89.8) internal successors, (449), 5 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:40:44,095 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 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) [2021-03-26 00:40:44,095 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 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) [2021-03-26 00:40:44,095 INFO L185 Difference]: Start difference. First operand has 56 places, 30 transitions, 352 flow. Second operand 5 states and 449 transitions. [2021-03-26 00:40:44,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 34 transitions, 468 flow [2021-03-26 00:40:44,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 34 transitions, 326 flow, removed 18 selfloop flow, removed 14 redundant places. [2021-03-26 00:40:44,099 INFO L241 Difference]: Finished difference. Result has 47 places, 22 transitions, 180 flow [2021-03-26 00:40:44,099 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=180, PETRI_PLACES=47, PETRI_TRANSITIONS=22} [2021-03-26 00:40:44,099 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 16 predicate places. [2021-03-26 00:40:44,099 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:40:44,099 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 22 transitions, 180 flow [2021-03-26 00:40:44,100 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 22 transitions, 180 flow [2021-03-26 00:40:44,100 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 22 transitions, 180 flow [2021-03-26 00:40:44,102 INFO L129 PetriNetUnfolder]: 6/29 cut-off events. [2021-03-26 00:40:44,103 INFO L130 PetriNetUnfolder]: For 69/71 co-relation queries the response was YES. [2021-03-26 00:40:44,103 INFO L84 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 29 events. 6/29 cut-off events. For 69/71 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 39 event pairs, 0 based on Foata normal form. 1/29 useless extension candidates. Maximal degree in co-relation 114. Up to 10 conditions per place. [2021-03-26 00:40:44,103 INFO L142 LiptonReduction]: Number of co-enabled transitions 16 [2021-03-26 00:40:44,322 INFO L154 LiptonReduction]: Checked pairs total: 14 [2021-03-26 00:40:44,322 INFO L156 LiptonReduction]: Total number of compositions: 7 [2021-03-26 00:40:44,323 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 224 [2021-03-26 00:40:44,323 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 19 transitions, 204 flow [2021-03-26 00:40:44,323 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 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) [2021-03-26 00:40:44,323 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:40:44,324 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:40:44,324 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-26 00:40:44,324 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:40:44,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:40:44,325 INFO L82 PathProgramCache]: Analyzing trace with hash 650740508, now seen corresponding path program 1 times [2021-03-26 00:40:44,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:40:44,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042673645] [2021-03-26 00:40:44,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:40:44,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:40:44,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:44,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:40:44,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:44,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:44,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:44,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:44,363 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:40:44,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:40:44,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:40:44,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042673645] [2021-03-26 00:40:44,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:40:44,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:40:44,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038681151] [2021-03-26 00:40:44,373 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:40:44,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:40:44,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:40:44,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:40:44,375 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 127 [2021-03-26 00:40:44,375 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 19 transitions, 204 flow. Second operand has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 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) [2021-03-26 00:40:44,375 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:40:44,375 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 127 [2021-03-26 00:40:44,375 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:40:44,395 INFO L129 PetriNetUnfolder]: 6/25 cut-off events. [2021-03-26 00:40:44,395 INFO L130 PetriNetUnfolder]: For 162/164 co-relation queries the response was YES. [2021-03-26 00:40:44,396 INFO L84 FinitePrefix]: Finished finitePrefix Result has 169 conditions, 25 events. 6/25 cut-off events. For 162/164 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 37 event pairs, 0 based on Foata normal form. 3/28 useless extension candidates. Maximal degree in co-relation 144. Up to 9 conditions per place. [2021-03-26 00:40:44,396 INFO L132 encePairwiseOnDemand]: 119/127 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2021-03-26 00:40:44,396 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 18 transitions, 204 flow [2021-03-26 00:40:44,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 00:40:44,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 00:40:44,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 526 transitions. [2021-03-26 00:40:44,397 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6902887139107612 [2021-03-26 00:40:44,398 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 526 transitions. [2021-03-26 00:40:44,398 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 526 transitions. [2021-03-26 00:40:44,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:40:44,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 526 transitions. [2021-03-26 00:40:44,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 87.66666666666667) internal successors, (526), 6 states have internal predecessors, (526), 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) [2021-03-26 00:40:44,400 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 127.0) internal successors, (889), 7 states have internal predecessors, (889), 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) [2021-03-26 00:40:44,400 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 127.0) internal successors, (889), 7 states have internal predecessors, (889), 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) [2021-03-26 00:40:44,401 INFO L185 Difference]: Start difference. First operand has 44 places, 19 transitions, 204 flow. Second operand 6 states and 526 transitions. [2021-03-26 00:40:44,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 18 transitions, 204 flow [2021-03-26 00:40:44,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 18 transitions, 85 flow, removed 20 selfloop flow, removed 20 redundant places. [2021-03-26 00:40:44,402 INFO L241 Difference]: Finished difference. Result has 28 places, 0 transitions, 0 flow [2021-03-26 00:40:44,402 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=28, PETRI_TRANSITIONS=0} [2021-03-26 00:40:44,402 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, -3 predicate places. [2021-03-26 00:40:44,403 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:40:44,403 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 0 transitions, 0 flow [2021-03-26 00:40:44,403 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 0 transitions, 0 flow [2021-03-26 00:40:44,403 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 00:40:44,403 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 00:40:44,403 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:40:44,403 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-03-26 00:40:44,404 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 00:40:44,404 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 00:40:44,404 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:40:44,404 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-26 00:40:44,404 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 00:40:44,405 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 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) [2021-03-26 00:40:44,405 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-26 00:40:44,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 12:40:44 BasicIcfg [2021-03-26 00:40:44,408 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 00:40:44,409 INFO L168 Benchmark]: Toolchain (without parser) took 5811.14 ms. Allocated memory was 255.9 MB in the beginning and 434.1 MB in the end (delta: 178.3 MB). Free memory was 234.6 MB in the beginning and 171.7 MB in the end (delta: 62.8 MB). Peak memory consumption was 240.7 MB. Max. memory is 16.0 GB. [2021-03-26 00:40:44,409 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 255.9 MB. Free memory is still 238.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 00:40:44,409 INFO L168 Benchmark]: CACSL2BoogieTranslator took 447.72 ms. Allocated memory was 255.9 MB in the beginning and 360.7 MB in the end (delta: 104.9 MB). Free memory was 234.6 MB in the beginning and 323.1 MB in the end (delta: -88.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-26 00:40:44,409 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.28 ms. Allocated memory is still 360.7 MB. Free memory was 323.0 MB in the beginning and 320.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:40:44,410 INFO L168 Benchmark]: Boogie Preprocessor took 21.61 ms. Allocated memory is still 360.7 MB. Free memory was 320.9 MB in the beginning and 319.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:40:44,410 INFO L168 Benchmark]: RCFGBuilder took 428.45 ms. Allocated memory is still 360.7 MB. Free memory was 319.6 MB in the beginning and 297.2 MB in the end (delta: 22.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:40:44,410 INFO L168 Benchmark]: TraceAbstraction took 4842.80 ms. Allocated memory was 360.7 MB in the beginning and 434.1 MB in the end (delta: 73.4 MB). Free memory was 297.2 MB in the beginning and 171.7 MB in the end (delta: 125.4 MB). Peak memory consumption was 200.6 MB. Max. memory is 16.0 GB. [2021-03-26 00:40:44,413 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 ms. Allocated memory is still 255.9 MB. Free memory is still 238.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 447.72 ms. Allocated memory was 255.9 MB in the beginning and 360.7 MB in the end (delta: 104.9 MB). Free memory was 234.6 MB in the beginning and 323.1 MB in the end (delta: -88.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 62.28 ms. Allocated memory is still 360.7 MB. Free memory was 323.0 MB in the beginning and 320.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 21.61 ms. Allocated memory is still 360.7 MB. Free memory was 320.9 MB in the beginning and 319.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 428.45 ms. Allocated memory is still 360.7 MB. Free memory was 319.6 MB in the beginning and 297.2 MB in the end (delta: 22.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4842.80 ms. Allocated memory was 360.7 MB in the beginning and 434.1 MB in the end (delta: 73.4 MB). Free memory was 297.2 MB in the beginning and 171.7 MB in the end (delta: 125.4 MB). Peak memory consumption was 200.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1513.2ms, 68 PlacesBefore, 31 PlacesAfterwards, 59 TransitionsBefore, 21 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 4 FixpointIterations, 14 TrivialSequentialCompositions, 23 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 40 TotalNumberOfCompositions, 1194 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 743, positive: 704, positive conditional: 704, positive unconditional: 0, negative: 39, negative conditional: 39, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 631, positive: 602, positive conditional: 0, positive unconditional: 602, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 631, positive: 602, positive conditional: 0, positive unconditional: 602, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 631, positive: 596, positive conditional: 0, positive unconditional: 596, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 35, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 136, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 110, negative conditional: 0, negative unconditional: 110, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 743, positive: 102, positive conditional: 102, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 631, unknown conditional: 631, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 30, Positive cache size: 20, Positive conditional cache size: 20, Positive unconditional cache size: 0, Negative cache size: 10, Negative conditional cache size: 10, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 705.3ms, 40 PlacesBefore, 34 PlacesAfterwards, 26 TransitionsBefore, 23 TransitionsAfterwards, 144 CoEnabledTransitionPairs, 3 FixpointIterations, 3 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 30, Positive cache size: 20, Positive conditional cache size: 20, Positive unconditional cache size: 0, Negative cache size: 10, Negative conditional cache size: 10, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 38.4ms, 44 PlacesBefore, 41 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 174 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 92 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 39, positive: 34, positive conditional: 34, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 15, positive: 13, positive conditional: 1, positive unconditional: 12, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 15, positive: 13, positive conditional: 1, positive unconditional: 12, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 15, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 16, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 39, positive: 21, positive conditional: 21, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 15, unknown conditional: 15, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 33, Positive conditional cache size: 33, Positive unconditional cache size: 0, Negative cache size: 12, Negative conditional cache size: 12, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 28.9ms, 51 PlacesBefore, 48 PlacesAfterwards, 42 TransitionsBefore, 42 TransitionsAfterwards, 214 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 149 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 81, positive: 72, positive conditional: 72, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 24, positive: 23, positive conditional: 11, positive unconditional: 12, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 24, positive: 23, positive conditional: 11, positive unconditional: 12, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 24, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 81, positive: 49, positive conditional: 49, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 24, unknown conditional: 24, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 69, Positive cache size: 56, Positive conditional cache size: 56, Positive unconditional cache size: 0, Negative cache size: 13, Negative conditional cache size: 13, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 24.0ms, 55 PlacesBefore, 52 PlacesAfterwards, 50 TransitionsBefore, 50 TransitionsAfterwards, 244 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 188 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 72, positive: 62, positive conditional: 62, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 15, positive: 15, positive conditional: 9, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 15, positive: 15, positive conditional: 9, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 15, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 72, positive: 47, positive conditional: 47, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 15, unknown conditional: 15, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 84, Positive cache size: 71, Positive conditional cache size: 71, Positive unconditional cache size: 0, Negative cache size: 13, Negative conditional cache size: 13, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 57.3ms, 56 PlacesBefore, 56 PlacesAfterwards, 57 TransitionsBefore, 56 TransitionsAfterwards, 394 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 38 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 38, positive: 38, positive conditional: 38, 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: 38, positive: 38, positive conditional: 38, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 38, positive: 38, positive conditional: 38, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 38, positive: 38, positive conditional: 0, positive unconditional: 38, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 38, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 38, unknown conditional: 38, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 79, Positive cache size: 69, Positive conditional cache size: 69, Positive unconditional cache size: 0, Negative cache size: 10, Negative conditional cache size: 10, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 34.7ms, 59 PlacesBefore, 59 PlacesAfterwards, 60 TransitionsBefore, 59 TransitionsAfterwards, 306 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 24 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 24, positive: 24, positive conditional: 24, 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: 24, positive: 24, positive conditional: 24, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 24, positive: 24, positive conditional: 24, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 24, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 24, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 24, unknown conditional: 24, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 79, Positive cache size: 69, Positive conditional cache size: 69, Positive unconditional cache size: 0, Negative cache size: 10, Negative conditional cache size: 10, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 178.1ms, 60 PlacesBefore, 56 PlacesAfterwards, 56 TransitionsBefore, 54 TransitionsAfterwards, 218 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 15 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 15, positive: 15, positive conditional: 15, 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: 15, positive: 15, positive conditional: 5, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 15, positive: 15, positive conditional: 5, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 15, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 15, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 15, unknown conditional: 15, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 70, Positive cache size: 64, Positive conditional cache size: 64, Positive unconditional cache size: 0, Negative cache size: 6, Negative conditional cache size: 6, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 32.8ms, 56 PlacesBefore, 56 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 32 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 4 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 4, 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: 4, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 60, Positive cache size: 54, Positive conditional cache size: 54, Positive unconditional cache size: 0, Negative cache size: 6, Negative conditional cache size: 6, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 222.9ms, 47 PlacesBefore, 44 PlacesAfterwards, 22 TransitionsBefore, 19 TransitionsAfterwards, 16 CoEnabledTransitionPairs, 3 FixpointIterations, 4 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 14 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 14, positive: 14, positive conditional: 14, 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: 8, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 21, positive: 21, positive conditional: 21, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 14, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 8, unknown conditional: 8, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.7ms, 28 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 73 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 7.4ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 4721.6ms, OverallIterations: 10, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 821.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1616.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 85 SDtfs, 85 SDslu, 101 SDs, 0 SdLazy, 187 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 160.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 216.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=737occurred in iteration=6, InterpolantAutomatonStates: 60, 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: 30.9ms SsaConstructionTime, 202.6ms SatisfiabilityAnalysisTime, 509.0ms InterpolantComputationTime, 137 NumberOfCodeBlocks, 137 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 127 ConstructedInterpolants, 0 QuantifiedInterpolants, 653 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...