/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/mix054_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 00:23:22,577 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 00:23:22,579 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 00:23:22,603 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 00:23:22,604 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 00:23:22,605 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 00:23:22,606 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 00:23:22,608 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 00:23:22,609 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 00:23:22,610 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 00:23:22,611 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 00:23:22,612 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 00:23:22,612 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 00:23:22,613 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 00:23:22,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 00:23:22,615 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 00:23:22,616 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 00:23:22,617 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 00:23:22,618 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 00:23:22,619 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 00:23:22,621 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 00:23:22,622 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 00:23:22,623 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 00:23:22,623 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 00:23:22,626 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 00:23:22,633 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 00:23:22,634 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 00:23:22,634 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 00:23:22,635 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 00:23:22,654 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 00:23:22,654 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 00:23:22,655 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 00:23:22,655 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 00:23:22,656 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 00:23:22,656 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 00:23:22,656 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 00:23:22,656 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 00:23:22,656 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 00:23:22,657 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 00:23:22,657 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 00:23:22,657 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 00:23:22,657 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 00:23:22,657 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 00:23:22,657 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 00:23:22,658 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 00:23:22,658 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 00:23:22,658 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 00:23:22,658 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 00:23:22,658 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 00:23:22,658 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 00:23:22,659 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 00:23:22,659 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 00:23:22,659 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 00:23:22,659 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 00:23:22,659 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 00:23:22,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 00:23:22,660 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-03-26 00:23:22,660 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 00:23:22,660 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 00:23:22,660 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 00:23:22,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 00:23:22,993 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 00:23:22,995 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 00:23:22,996 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 00:23:22,996 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 00:23:22,997 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix054_pso.opt.i [2021-03-26 00:23:23,059 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd5a59461/ec24083c94694368a5cc6b76d4a77214/FLAGef71cb443 [2021-03-26 00:23:23,600 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 00:23:23,608 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix054_pso.opt.i [2021-03-26 00:23:23,627 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd5a59461/ec24083c94694368a5cc6b76d4a77214/FLAGef71cb443 [2021-03-26 00:23:24,050 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd5a59461/ec24083c94694368a5cc6b76d4a77214 [2021-03-26 00:23:24,052 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 00:23:24,053 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 00:23:24,054 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 00:23:24,054 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 00:23:24,057 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 00:23:24,057 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:23:24" (1/1) ... [2021-03-26 00:23:24,058 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@190cfb04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:23:24, skipping insertion in model container [2021-03-26 00:23:24,058 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:23:24" (1/1) ... [2021-03-26 00:23:24,064 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 00:23:24,094 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 00:23:24,211 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/mix054_pso.opt.i[948,961] [2021-03-26 00:23:24,378 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:23:24,385 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 00:23:24,394 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/mix054_pso.opt.i[948,961] [2021-03-26 00:23:24,429 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:23:24,485 INFO L208 MainTranslator]: Completed translation [2021-03-26 00:23:24,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:23:24 WrapperNode [2021-03-26 00:23:24,486 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 00:23:24,487 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 00:23:24,487 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 00:23:24,487 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 00:23:24,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:23:24" (1/1) ... [2021-03-26 00:23:24,524 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:23:24" (1/1) ... [2021-03-26 00:23:24,569 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 00:23:24,569 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 00:23:24,570 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 00:23:24,570 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 00:23:24,577 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:23:24" (1/1) ... [2021-03-26 00:23:24,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:23:24" (1/1) ... [2021-03-26 00:23:24,580 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:23:24" (1/1) ... [2021-03-26 00:23:24,580 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:23:24" (1/1) ... [2021-03-26 00:23:24,587 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:23:24" (1/1) ... [2021-03-26 00:23:24,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:23:24" (1/1) ... [2021-03-26 00:23:24,593 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:23:24" (1/1) ... [2021-03-26 00:23:24,596 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 00:23:24,597 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 00:23:24,597 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 00:23:24,598 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 00:23:24,598 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:23:24" (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 00:23:24,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 00:23:24,687 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 00:23:24,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 00:23:24,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 00:23:24,688 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 00:23:24,689 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 00:23:24,689 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 00:23:24,689 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 00:23:24,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 00:23:24,689 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 00:23:24,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 00:23:24,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 00:23:24,691 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 00:23:26,310 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 00:23:26,310 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-26 00:23:26,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:23:26 BoogieIcfgContainer [2021-03-26 00:23:26,312 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 00:23:26,313 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 00:23:26,313 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 00:23:26,316 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 00:23:26,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 12:23:24" (1/3) ... [2021-03-26 00:23:26,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2689845d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:23:26, skipping insertion in model container [2021-03-26 00:23:26,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:23:24" (2/3) ... [2021-03-26 00:23:26,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2689845d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:23:26, skipping insertion in model container [2021-03-26 00:23:26,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:23:26" (3/3) ... [2021-03-26 00:23:26,318 INFO L111 eAbstractionObserver]: Analyzing ICFG mix054_pso.opt.i [2021-03-26 00:23:26,323 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 00:23:26,327 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-26 00:23:26,328 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 00:23:26,362 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,362 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,363 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,363 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,363 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,363 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,363 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,363 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,363 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,364 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,364 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,364 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,364 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,364 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,364 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,365 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,365 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,365 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,365 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,365 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,365 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,365 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,366 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,366 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,366 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,366 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,366 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,367 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,367 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,367 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,367 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,367 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,367 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,367 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,367 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,367 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,367 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,368 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,368 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,368 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,368 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,368 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,369 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,369 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,369 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,369 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,369 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,369 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,369 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,370 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,370 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,370 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,370 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,370 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,371 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,371 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,376 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,376 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,376 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,376 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,378 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,378 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,378 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,379 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,379 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,379 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,379 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,379 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,379 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,379 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,381 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,381 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,381 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,381 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,381 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,381 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,381 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,381 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,382 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,382 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,382 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,382 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:23:26,383 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 00:23:26,398 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-26 00:23:26,416 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 00:23:26,417 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 00:23:26,417 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 00:23:26,417 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 00:23:26,417 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 00:23:26,417 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 00:23:26,417 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 00:23:26,417 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 00:23:26,426 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 80 transitions, 170 flow [2021-03-26 00:23:26,454 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2021-03-26 00:23:26,455 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:23:26,457 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 51 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2021-03-26 00:23:26,458 INFO L82 GeneralOperation]: Start removeDead. Operand has 85 places, 80 transitions, 170 flow [2021-03-26 00:23:26,462 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 78 transitions, 162 flow [2021-03-26 00:23:26,463 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:23:26,474 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 78 transitions, 162 flow [2021-03-26 00:23:26,476 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 78 transitions, 162 flow [2021-03-26 00:23:26,478 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 78 transitions, 162 flow [2021-03-26 00:23:26,491 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2021-03-26 00:23:26,491 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:23:26,492 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2021-03-26 00:23:26,494 INFO L142 LiptonReduction]: Number of co-enabled transitions 918 [2021-03-26 00:23:27,390 WARN L205 SmtUtils]: Spent 782.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 184 [2021-03-26 00:23:27,714 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2021-03-26 00:23:29,132 WARN L205 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 308 DAG size of output: 264 [2021-03-26 00:23:29,685 WARN L205 SmtUtils]: Spent 549.00 ms on a formula simplification that was a NOOP. DAG size: 261 [2021-03-26 00:23:30,629 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-26 00:23:31,066 WARN L205 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 88 [2021-03-26 00:23:31,197 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-03-26 00:23:32,604 WARN L205 SmtUtils]: Spent 615.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 183 [2021-03-26 00:23:32,922 WARN L205 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2021-03-26 00:23:34,124 WARN L205 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 263 DAG size of output: 262 [2021-03-26 00:23:34,718 WARN L205 SmtUtils]: Spent 592.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2021-03-26 00:23:35,027 INFO L154 LiptonReduction]: Checked pairs total: 1544 [2021-03-26 00:23:35,027 INFO L156 LiptonReduction]: Total number of compositions: 56 [2021-03-26 00:23:35,029 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8567 [2021-03-26 00:23:35,040 INFO L129 PetriNetUnfolder]: 0/14 cut-off events. [2021-03-26 00:23:35,040 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:23:35,040 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:23:35,041 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:23:35,041 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:23:35,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:23:35,046 INFO L82 PathProgramCache]: Analyzing trace with hash -1685503753, now seen corresponding path program 1 times [2021-03-26 00:23:35,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:23:35,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272628813] [2021-03-26 00:23:35,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:23:35,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:23:35,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:23:35,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:23:35,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:23:35,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:23:35,314 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 00:23:35,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272628813] [2021-03-26 00:23:35,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:23:35,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:23:35,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084183581] [2021-03-26 00:23:35,324 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 00:23:35,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:23:35,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 00:23:35,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 00:23:35,338 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 136 [2021-03-26 00:23:35,342 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 30 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 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 00:23:35,343 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:23:35,343 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 136 [2021-03-26 00:23:35,344 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:23:35,453 INFO L129 PetriNetUnfolder]: 23/91 cut-off events. [2021-03-26 00:23:35,453 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:23:35,454 INFO L84 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 91 events. 23/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 335 event pairs, 9 based on Foata normal form. 6/90 useless extension candidates. Maximal degree in co-relation 131. Up to 37 conditions per place. [2021-03-26 00:23:35,456 INFO L132 encePairwiseOnDemand]: 132/136 looper letters, 7 selfloop transitions, 2 changer transitions 5/31 dead transitions. [2021-03-26 00:23:35,456 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 31 transitions, 90 flow [2021-03-26 00:23:35,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 00:23:35,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 00:23:35,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 356 transitions. [2021-03-26 00:23:35,473 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8725490196078431 [2021-03-26 00:23:35,474 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 356 transitions. [2021-03-26 00:23:35,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 356 transitions. [2021-03-26 00:23:35,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:23:35,479 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 356 transitions. [2021-03-26 00:23:35,485 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 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 00:23:35,496 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:23:35,497 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:23:35,498 INFO L185 Difference]: Start difference. First operand has 36 places, 30 transitions, 66 flow. Second operand 3 states and 356 transitions. [2021-03-26 00:23:35,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 31 transitions, 90 flow [2021-03-26 00:23:35,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 31 transitions, 88 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 00:23:35,502 INFO L241 Difference]: Finished difference. Result has 34 places, 23 transitions, 54 flow [2021-03-26 00:23:35,504 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=54, PETRI_PLACES=34, PETRI_TRANSITIONS=23} [2021-03-26 00:23:35,504 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, -2 predicate places. [2021-03-26 00:23:35,504 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:23:35,505 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 23 transitions, 54 flow [2021-03-26 00:23:35,506 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 23 transitions, 54 flow [2021-03-26 00:23:35,506 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 30 places, 23 transitions, 54 flow [2021-03-26 00:23:35,513 INFO L129 PetriNetUnfolder]: 0/23 cut-off events. [2021-03-26 00:23:35,513 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:23:35,513 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 23 events. 0/23 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 18 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-26 00:23:35,514 INFO L142 LiptonReduction]: Number of co-enabled transitions 128 [2021-03-26 00:23:36,459 WARN L205 SmtUtils]: Spent 690.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 184 [2021-03-26 00:23:36,812 WARN L205 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2021-03-26 00:23:37,458 WARN L205 SmtUtils]: Spent 643.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2021-03-26 00:23:38,090 WARN L205 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2021-03-26 00:23:38,810 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-03-26 00:23:39,055 INFO L154 LiptonReduction]: Checked pairs total: 536 [2021-03-26 00:23:39,056 INFO L156 LiptonReduction]: Total number of compositions: 7 [2021-03-26 00:23:39,056 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3552 [2021-03-26 00:23:39,057 INFO L480 AbstractCegarLoop]: Abstraction has has 23 places, 16 transitions, 40 flow [2021-03-26 00:23:39,058 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 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 00:23:39,058 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:23:39,058 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:23:39,058 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 00:23:39,058 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:23:39,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:23:39,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1168850318, now seen corresponding path program 1 times [2021-03-26 00:23:39,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:23:39,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922280914] [2021-03-26 00:23:39,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:23:39,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:23:39,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:23:39,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:23:39,191 INFO L142 QuantifierPusher]: treesize reduction 5, result has 37.5 percent of original size [2021-03-26 00:23:39,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:23:39,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:23:39,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 00:23:39,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:23:39,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 00:23:39,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:23:39,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 00:23:39,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:23:39,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 00:23:39,238 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-26 00:23:39,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 00:23:39,250 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 00:23:39,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922280914] [2021-03-26 00:23:39,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:23:39,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 00:23:39,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820874043] [2021-03-26 00:23:39,252 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 00:23:39,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:23:39,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 00:23:39,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-26 00:23:39,257 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 143 [2021-03-26 00:23:39,258 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 16 transitions, 40 flow. Second operand has 8 states, 8 states have (on average 92.875) internal successors, (743), 8 states have internal predecessors, (743), 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 00:23:39,258 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:23:39,258 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 143 [2021-03-26 00:23:39,258 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:23:39,385 INFO L129 PetriNetUnfolder]: 77/150 cut-off events. [2021-03-26 00:23:39,385 INFO L130 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2021-03-26 00:23:39,385 INFO L84 FinitePrefix]: Finished finitePrefix Result has 311 conditions, 150 events. 77/150 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 530 event pairs, 8 based on Foata normal form. 2/152 useless extension candidates. Maximal degree in co-relation 301. Up to 70 conditions per place. [2021-03-26 00:23:39,386 INFO L132 encePairwiseOnDemand]: 136/143 looper letters, 20 selfloop transitions, 7 changer transitions 0/33 dead transitions. [2021-03-26 00:23:39,386 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 33 transitions, 134 flow [2021-03-26 00:23:39,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:23:39,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:23:39,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 489 transitions. [2021-03-26 00:23:39,389 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6839160839160839 [2021-03-26 00:23:39,389 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 489 transitions. [2021-03-26 00:23:39,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 489 transitions. [2021-03-26 00:23:39,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:23:39,396 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 489 transitions. [2021-03-26 00:23:39,397 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 97.8) internal successors, (489), 5 states have internal predecessors, (489), 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 00:23:39,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 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 00:23:39,400 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 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 00:23:39,400 INFO L185 Difference]: Start difference. First operand has 23 places, 16 transitions, 40 flow. Second operand 5 states and 489 transitions. [2021-03-26 00:23:39,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 33 transitions, 134 flow [2021-03-26 00:23:39,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 33 transitions, 124 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 00:23:39,401 INFO L241 Difference]: Finished difference. Result has 28 places, 22 transitions, 89 flow [2021-03-26 00:23:39,401 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=89, PETRI_PLACES=28, PETRI_TRANSITIONS=22} [2021-03-26 00:23:39,402 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, -8 predicate places. [2021-03-26 00:23:39,402 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:23:39,402 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 22 transitions, 89 flow [2021-03-26 00:23:39,402 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 22 transitions, 89 flow [2021-03-26 00:23:39,403 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 28 places, 22 transitions, 89 flow [2021-03-26 00:23:39,407 INFO L129 PetriNetUnfolder]: 7/36 cut-off events. [2021-03-26 00:23:39,407 INFO L130 PetriNetUnfolder]: For 7/9 co-relation queries the response was YES. [2021-03-26 00:23:39,408 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 36 events. 7/36 cut-off events. For 7/9 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 81 event pairs, 2 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 71. Up to 11 conditions per place. [2021-03-26 00:23:39,408 INFO L142 LiptonReduction]: Number of co-enabled transitions 112 [2021-03-26 00:23:39,683 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 106 [2021-03-26 00:23:39,795 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-03-26 00:23:40,087 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 106 [2021-03-26 00:23:40,210 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-03-26 00:23:40,437 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2021-03-26 00:23:40,831 WARN L205 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 85 [2021-03-26 00:23:40,951 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-03-26 00:23:40,962 INFO L154 LiptonReduction]: Checked pairs total: 155 [2021-03-26 00:23:40,963 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 00:23:40,963 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1561 [2021-03-26 00:23:40,964 INFO L480 AbstractCegarLoop]: Abstraction has has 27 places, 21 transitions, 89 flow [2021-03-26 00:23:40,964 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 92.875) internal successors, (743), 8 states have internal predecessors, (743), 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 00:23:40,964 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:23:40,965 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:23:40,965 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 00:23:40,965 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:23:40,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:23:40,965 INFO L82 PathProgramCache]: Analyzing trace with hash 864249689, now seen corresponding path program 1 times [2021-03-26 00:23:40,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:23:40,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017536920] [2021-03-26 00:23:40,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:23:41,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:23:41,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:23:41,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:23:41,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:23:41,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 00:23:41,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:23:41,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 00:23:41,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:23:41,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 00:23:41,125 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 00:23:41,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017536920] [2021-03-26 00:23:41,125 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:23:41,125 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:23:41,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784484474] [2021-03-26 00:23:41,126 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 00:23:41,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:23:41,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 00:23:41,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-03-26 00:23:41,127 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 145 [2021-03-26 00:23:41,128 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 21 transitions, 89 flow. Second operand has 6 states, 6 states have (on average 91.83333333333333) internal successors, (551), 6 states have internal predecessors, (551), 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 00:23:41,128 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:23:41,128 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 145 [2021-03-26 00:23:41,128 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:23:41,231 INFO L129 PetriNetUnfolder]: 77/157 cut-off events. [2021-03-26 00:23:41,231 INFO L130 PetriNetUnfolder]: For 106/106 co-relation queries the response was YES. [2021-03-26 00:23:41,232 INFO L84 FinitePrefix]: Finished finitePrefix Result has 450 conditions, 157 events. 77/157 cut-off events. For 106/106 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 574 event pairs, 5 based on Foata normal form. 6/163 useless extension candidates. Maximal degree in co-relation 438. Up to 98 conditions per place. [2021-03-26 00:23:41,234 INFO L132 encePairwiseOnDemand]: 138/145 looper letters, 19 selfloop transitions, 8 changer transitions 0/32 dead transitions. [2021-03-26 00:23:41,234 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 32 transitions, 175 flow [2021-03-26 00:23:41,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:23:41,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:23:41,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 481 transitions. [2021-03-26 00:23:41,236 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.663448275862069 [2021-03-26 00:23:41,236 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 481 transitions. [2021-03-26 00:23:41,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 481 transitions. [2021-03-26 00:23:41,238 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:23:41,238 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 481 transitions. [2021-03-26 00:23:41,239 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 96.2) internal successors, (481), 5 states have internal predecessors, (481), 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 00:23:41,241 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 145.0) internal successors, (870), 6 states have internal predecessors, (870), 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 00:23:41,241 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 145.0) internal successors, (870), 6 states have internal predecessors, (870), 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 00:23:41,241 INFO L185 Difference]: Start difference. First operand has 27 places, 21 transitions, 89 flow. Second operand 5 states and 481 transitions. [2021-03-26 00:23:41,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 32 transitions, 175 flow [2021-03-26 00:23:41,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 32 transitions, 168 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-26 00:23:41,243 INFO L241 Difference]: Finished difference. Result has 32 places, 23 transitions, 123 flow [2021-03-26 00:23:41,243 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=123, PETRI_PLACES=32, PETRI_TRANSITIONS=23} [2021-03-26 00:23:41,243 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, -4 predicate places. [2021-03-26 00:23:41,244 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:23:41,244 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 23 transitions, 123 flow [2021-03-26 00:23:41,244 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 23 transitions, 123 flow [2021-03-26 00:23:41,244 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 23 transitions, 123 flow [2021-03-26 00:23:41,249 INFO L129 PetriNetUnfolder]: 7/36 cut-off events. [2021-03-26 00:23:41,249 INFO L130 PetriNetUnfolder]: For 55/59 co-relation queries the response was YES. [2021-03-26 00:23:41,250 INFO L84 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 36 events. 7/36 cut-off events. For 55/59 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 93 event pairs, 0 based on Foata normal form. 2/38 useless extension candidates. Maximal degree in co-relation 93. Up to 13 conditions per place. [2021-03-26 00:23:41,250 INFO L142 LiptonReduction]: Number of co-enabled transitions 118 [2021-03-26 00:23:41,352 INFO L154 LiptonReduction]: Checked pairs total: 80 [2021-03-26 00:23:41,352 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:23:41,352 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 108 [2021-03-26 00:23:41,353 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 23 transitions, 123 flow [2021-03-26 00:23:41,353 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 91.83333333333333) internal successors, (551), 6 states have internal predecessors, (551), 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 00:23:41,353 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:23:41,354 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:23:41,354 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 00:23:41,354 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:23:41,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:23:41,354 INFO L82 PathProgramCache]: Analyzing trace with hash 263702402, now seen corresponding path program 1 times [2021-03-26 00:23:41,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:23:41,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971797569] [2021-03-26 00:23:41,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:23:41,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:23:41,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:23:41,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:23:41,469 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-26 00:23:41,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 00:23:41,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:23:41,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:23:41,477 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 00:23:41,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971797569] [2021-03-26 00:23:41,477 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:23:41,477 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:23:41,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28259420] [2021-03-26 00:23:41,478 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:23:41,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:23:41,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:23:41,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:23:41,480 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 145 [2021-03-26 00:23:41,480 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 23 transitions, 123 flow. Second operand has 4 states, 4 states have (on average 115.75) internal successors, (463), 4 states have internal predecessors, (463), 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 00:23:41,480 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:23:41,480 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 145 [2021-03-26 00:23:41,481 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:23:41,514 INFO L129 PetriNetUnfolder]: 12/60 cut-off events. [2021-03-26 00:23:41,515 INFO L130 PetriNetUnfolder]: For 79/95 co-relation queries the response was YES. [2021-03-26 00:23:41,515 INFO L84 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 60 events. 12/60 cut-off events. For 79/95 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 218 event pairs, 2 based on Foata normal form. 12/71 useless extension candidates. Maximal degree in co-relation 167. Up to 24 conditions per place. [2021-03-26 00:23:41,515 INFO L132 encePairwiseOnDemand]: 140/145 looper letters, 4 selfloop transitions, 6 changer transitions 2/28 dead transitions. [2021-03-26 00:23:41,515 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 28 transitions, 165 flow [2021-03-26 00:23:41,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:23:41,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:23:41,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 589 transitions. [2021-03-26 00:23:41,518 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8124137931034483 [2021-03-26 00:23:41,518 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 589 transitions. [2021-03-26 00:23:41,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 589 transitions. [2021-03-26 00:23:41,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:23:41,518 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 589 transitions. [2021-03-26 00:23:41,520 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 117.8) internal successors, (589), 5 states have internal predecessors, (589), 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 00:23:41,521 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 145.0) internal successors, (870), 6 states have internal predecessors, (870), 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 00:23:41,522 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 145.0) internal successors, (870), 6 states have internal predecessors, (870), 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 00:23:41,522 INFO L185 Difference]: Start difference. First operand has 32 places, 23 transitions, 123 flow. Second operand 5 states and 589 transitions. [2021-03-26 00:23:41,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 28 transitions, 165 flow [2021-03-26 00:23:41,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 28 transitions, 154 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-03-26 00:23:41,524 INFO L241 Difference]: Finished difference. Result has 37 places, 26 transitions, 149 flow [2021-03-26 00:23:41,524 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=149, PETRI_PLACES=37, PETRI_TRANSITIONS=26} [2021-03-26 00:23:41,524 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, 1 predicate places. [2021-03-26 00:23:41,524 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:23:41,525 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 26 transitions, 149 flow [2021-03-26 00:23:41,525 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 26 transitions, 149 flow [2021-03-26 00:23:41,525 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 26 transitions, 149 flow [2021-03-26 00:23:41,531 INFO L129 PetriNetUnfolder]: 8/53 cut-off events. [2021-03-26 00:23:41,532 INFO L130 PetriNetUnfolder]: For 78/82 co-relation queries the response was YES. [2021-03-26 00:23:41,532 INFO L84 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 53 events. 8/53 cut-off events. For 78/82 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 191 event pairs, 0 based on Foata normal form. 1/53 useless extension candidates. Maximal degree in co-relation 152. Up to 15 conditions per place. [2021-03-26 00:23:41,533 INFO L142 LiptonReduction]: Number of co-enabled transitions 124 [2021-03-26 00:23:41,545 INFO L154 LiptonReduction]: Checked pairs total: 78 [2021-03-26 00:23:41,545 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:23:41,545 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 21 [2021-03-26 00:23:41,546 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 26 transitions, 149 flow [2021-03-26 00:23:41,546 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 115.75) internal successors, (463), 4 states have internal predecessors, (463), 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 00:23:41,547 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:23:41,547 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:23:41,547 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 00:23:41,547 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:23:41,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:23:41,547 INFO L82 PathProgramCache]: Analyzing trace with hash -1778551802, now seen corresponding path program 1 times [2021-03-26 00:23:41,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:23:41,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380491155] [2021-03-26 00:23:41,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:23:41,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:23:41,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:23:41,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:23:41,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:23:41,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:23:41,627 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-26 00:23:41,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 00:23:41,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:23:41,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:23:41,636 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 00:23:41,636 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380491155] [2021-03-26 00:23:41,636 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:23:41,636 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:23:41,636 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902664824] [2021-03-26 00:23:41,637 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:23:41,637 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:23:41,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:23:41,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:23:41,638 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 145 [2021-03-26 00:23:41,639 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 26 transitions, 149 flow. Second operand has 5 states, 5 states have (on average 115.8) internal successors, (579), 5 states have internal predecessors, (579), 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 00:23:41,639 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:23:41,639 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 145 [2021-03-26 00:23:41,639 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:23:41,684 INFO L129 PetriNetUnfolder]: 6/45 cut-off events. [2021-03-26 00:23:41,685 INFO L130 PetriNetUnfolder]: For 95/117 co-relation queries the response was YES. [2021-03-26 00:23:41,685 INFO L84 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 45 events. 6/45 cut-off events. For 95/117 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 146 event pairs, 0 based on Foata normal form. 21/65 useless extension candidates. Maximal degree in co-relation 143. Up to 17 conditions per place. [2021-03-26 00:23:41,685 INFO L132 encePairwiseOnDemand]: 140/145 looper letters, 2 selfloop transitions, 9 changer transitions 2/29 dead transitions. [2021-03-26 00:23:41,685 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 29 transitions, 187 flow [2021-03-26 00:23:41,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 00:23:41,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 00:23:41,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 820 transitions. [2021-03-26 00:23:41,689 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8078817733990148 [2021-03-26 00:23:41,689 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 820 transitions. [2021-03-26 00:23:41,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 820 transitions. [2021-03-26 00:23:41,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:23:41,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 820 transitions. [2021-03-26 00:23:41,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 117.14285714285714) internal successors, (820), 7 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:23:41,693 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 145.0) internal successors, (1160), 8 states have internal predecessors, (1160), 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 00:23:41,693 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 145.0) internal successors, (1160), 8 states have internal predecessors, (1160), 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 00:23:41,694 INFO L185 Difference]: Start difference. First operand has 37 places, 26 transitions, 149 flow. Second operand 7 states and 820 transitions. [2021-03-26 00:23:41,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 29 transitions, 187 flow [2021-03-26 00:23:41,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 29 transitions, 172 flow, removed 4 selfloop flow, removed 2 redundant places. [2021-03-26 00:23:41,695 INFO L241 Difference]: Finished difference. Result has 44 places, 27 transitions, 170 flow [2021-03-26 00:23:41,696 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=170, PETRI_PLACES=44, PETRI_TRANSITIONS=27} [2021-03-26 00:23:41,696 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, 8 predicate places. [2021-03-26 00:23:41,696 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:23:41,696 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 27 transitions, 170 flow [2021-03-26 00:23:41,696 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 27 transitions, 170 flow [2021-03-26 00:23:41,697 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 43 places, 27 transitions, 170 flow [2021-03-26 00:23:41,701 INFO L129 PetriNetUnfolder]: 4/36 cut-off events. [2021-03-26 00:23:41,702 INFO L130 PetriNetUnfolder]: For 87/91 co-relation queries the response was YES. [2021-03-26 00:23:41,702 INFO L84 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 36 events. 4/36 cut-off events. For 87/91 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 99 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 113. Up to 11 conditions per place. [2021-03-26 00:23:41,702 INFO L142 LiptonReduction]: Number of co-enabled transitions 94 [2021-03-26 00:23:42,028 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-03-26 00:23:42,197 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-03-26 00:23:42,782 WARN L205 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 189 [2021-03-26 00:23:43,020 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2021-03-26 00:23:44,449 WARN L205 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 343 DAG size of output: 271 [2021-03-26 00:23:45,029 WARN L205 SmtUtils]: Spent 577.00 ms on a formula simplification that was a NOOP. DAG size: 251 [2021-03-26 00:23:45,032 INFO L154 LiptonReduction]: Checked pairs total: 116 [2021-03-26 00:23:45,033 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 00:23:45,033 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3337 [2021-03-26 00:23:45,034 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 23 transitions, 150 flow [2021-03-26 00:23:45,034 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 115.8) internal successors, (579), 5 states have internal predecessors, (579), 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 00:23:45,034 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:23:45,034 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:23:45,034 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 00:23:45,034 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:23:45,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:23:45,035 INFO L82 PathProgramCache]: Analyzing trace with hash 539787335, now seen corresponding path program 1 times [2021-03-26 00:23:45,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:23:45,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758790787] [2021-03-26 00:23:45,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:23:45,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:23:45,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:23:45,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 00:23:45,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:23:45,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 00:23:45,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:23:45,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 00:23:45,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:23:45,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 00:23:45,181 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 00:23:45,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758790787] [2021-03-26 00:23:45,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:23:45,181 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:23:45,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387420026] [2021-03-26 00:23:45,182 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 00:23:45,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:23:45,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 00:23:45,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-26 00:23:45,185 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 147 [2021-03-26 00:23:45,186 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 23 transitions, 150 flow. Second operand has 6 states, 6 states have (on average 99.33333333333333) internal successors, (596), 6 states have internal predecessors, (596), 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 00:23:45,186 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:23:45,186 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 147 [2021-03-26 00:23:45,186 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:23:45,243 INFO L129 PetriNetUnfolder]: 9/47 cut-off events. [2021-03-26 00:23:45,243 INFO L130 PetriNetUnfolder]: For 179/184 co-relation queries the response was YES. [2021-03-26 00:23:45,244 INFO L84 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 47 events. 9/47 cut-off events. For 179/184 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 135 event pairs, 0 based on Foata normal form. 6/53 useless extension candidates. Maximal degree in co-relation 150. Up to 13 conditions per place. [2021-03-26 00:23:45,244 INFO L132 encePairwiseOnDemand]: 142/147 looper letters, 7 selfloop transitions, 3 changer transitions 11/29 dead transitions. [2021-03-26 00:23:45,244 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 29 transitions, 202 flow [2021-03-26 00:23:45,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 00:23:45,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 00:23:45,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 603 transitions. [2021-03-26 00:23:45,247 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6836734693877551 [2021-03-26 00:23:45,247 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 603 transitions. [2021-03-26 00:23:45,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 603 transitions. [2021-03-26 00:23:45,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:23:45,247 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 603 transitions. [2021-03-26 00:23:45,249 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 100.5) internal successors, (603), 6 states have internal predecessors, (603), 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 00:23:45,250 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 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 00:23:45,250 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 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 00:23:45,251 INFO L185 Difference]: Start difference. First operand has 41 places, 23 transitions, 150 flow. Second operand 6 states and 603 transitions. [2021-03-26 00:23:45,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 29 transitions, 202 flow [2021-03-26 00:23:45,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 29 transitions, 175 flow, removed 6 selfloop flow, removed 8 redundant places. [2021-03-26 00:23:45,254 INFO L241 Difference]: Finished difference. Result has 36 places, 17 transitions, 85 flow [2021-03-26 00:23:45,254 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=85, PETRI_PLACES=36, PETRI_TRANSITIONS=17} [2021-03-26 00:23:45,254 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, 0 predicate places. [2021-03-26 00:23:45,254 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:23:45,255 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 17 transitions, 85 flow [2021-03-26 00:23:45,255 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 17 transitions, 85 flow [2021-03-26 00:23:45,255 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 17 transitions, 85 flow [2021-03-26 00:23:45,259 INFO L129 PetriNetUnfolder]: 2/22 cut-off events. [2021-03-26 00:23:45,259 INFO L130 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2021-03-26 00:23:45,259 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 22 events. 2/22 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 23 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 53. Up to 6 conditions per place. [2021-03-26 00:23:45,259 INFO L142 LiptonReduction]: Number of co-enabled transitions 12 [2021-03-26 00:23:45,411 INFO L154 LiptonReduction]: Checked pairs total: 10 [2021-03-26 00:23:45,411 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 00:23:45,411 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 157 [2021-03-26 00:23:45,412 INFO L480 AbstractCegarLoop]: Abstraction has has 30 places, 15 transitions, 81 flow [2021-03-26 00:23:45,412 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 99.33333333333333) internal successors, (596), 6 states have internal predecessors, (596), 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 00:23:45,412 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:23:45,412 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:23:45,412 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 00:23:45,412 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:23:45,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:23:45,413 INFO L82 PathProgramCache]: Analyzing trace with hash -233146814, now seen corresponding path program 1 times [2021-03-26 00:23:45,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:23:45,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596371967] [2021-03-26 00:23:45,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:23:45,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:23:45,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:23:45,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 00:23:45,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:23:45,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 00:23:45,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:23:45,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 00:23:45,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:23:45,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 00:23:45,507 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 00:23:45,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596371967] [2021-03-26 00:23:45,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:23:45,507 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:23:45,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586937318] [2021-03-26 00:23:45,508 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 00:23:45,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:23:45,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 00:23:45,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-03-26 00:23:45,509 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 149 [2021-03-26 00:23:45,509 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 15 transitions, 81 flow. Second operand has 6 states, 6 states have (on average 104.0) internal successors, (624), 6 states have internal predecessors, (624), 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 00:23:45,509 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:23:45,509 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 149 [2021-03-26 00:23:45,509 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:23:45,553 INFO L129 PetriNetUnfolder]: 3/23 cut-off events. [2021-03-26 00:23:45,554 INFO L130 PetriNetUnfolder]: For 36/38 co-relation queries the response was YES. [2021-03-26 00:23:45,554 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 23 events. 3/23 cut-off events. For 36/38 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 37 event pairs, 0 based on Foata normal form. 3/26 useless extension candidates. Maximal degree in co-relation 69. Up to 7 conditions per place. [2021-03-26 00:23:45,554 INFO L132 encePairwiseOnDemand]: 144/149 looper letters, 3 selfloop transitions, 5 changer transitions 2/17 dead transitions. [2021-03-26 00:23:45,554 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 17 transitions, 111 flow [2021-03-26 00:23:45,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:23:45,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:23:45,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 524 transitions. [2021-03-26 00:23:45,556 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7033557046979866 [2021-03-26 00:23:45,556 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 524 transitions. [2021-03-26 00:23:45,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 524 transitions. [2021-03-26 00:23:45,557 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:23:45,557 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 524 transitions. [2021-03-26 00:23:45,558 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 104.8) internal successors, (524), 5 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:23:45,559 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 149.0) internal successors, (894), 6 states have internal predecessors, (894), 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 00:23:45,560 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 149.0) internal successors, (894), 6 states have internal predecessors, (894), 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 00:23:45,560 INFO L185 Difference]: Start difference. First operand has 30 places, 15 transitions, 81 flow. Second operand 5 states and 524 transitions. [2021-03-26 00:23:45,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 17 transitions, 111 flow [2021-03-26 00:23:45,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 17 transitions, 94 flow, removed 5 selfloop flow, removed 6 redundant places. [2021-03-26 00:23:45,562 INFO L241 Difference]: Finished difference. Result has 29 places, 15 transitions, 81 flow [2021-03-26 00:23:45,562 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=81, PETRI_PLACES=29, PETRI_TRANSITIONS=15} [2021-03-26 00:23:45,563 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, -7 predicate places. [2021-03-26 00:23:45,563 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:23:45,563 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 15 transitions, 81 flow [2021-03-26 00:23:45,563 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 15 transitions, 81 flow [2021-03-26 00:23:45,563 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 15 transitions, 81 flow [2021-03-26 00:23:45,576 INFO L129 PetriNetUnfolder]: 2/16 cut-off events. [2021-03-26 00:23:45,577 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2021-03-26 00:23:45,577 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 16 events. 2/16 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 12 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 41. Up to 5 conditions per place. [2021-03-26 00:23:45,577 INFO L142 LiptonReduction]: Number of co-enabled transitions 4 [2021-03-26 00:23:45,778 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-03-26 00:23:46,211 WARN L205 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 91 [2021-03-26 00:23:46,352 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-03-26 00:23:46,354 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 00:23:46,354 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 00:23:46,354 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 791 [2021-03-26 00:23:46,355 INFO L480 AbstractCegarLoop]: Abstraction has has 29 places, 15 transitions, 86 flow [2021-03-26 00:23:46,355 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 104.0) internal successors, (624), 6 states have internal predecessors, (624), 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 00:23:46,355 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:23:46,355 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:23:46,355 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 00:23:46,356 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:23:46,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:23:46,356 INFO L82 PathProgramCache]: Analyzing trace with hash 1822705021, now seen corresponding path program 1 times [2021-03-26 00:23:46,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:23:46,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450024027] [2021-03-26 00:23:46,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:23:46,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 00:23:46,382 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 00:23:46,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 00:23:46,407 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 00:23:46,430 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 00:23:46,430 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 00:23:46,430 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 00:23:46,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 12:23:46 BasicIcfg [2021-03-26 00:23:46,469 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 00:23:46,470 INFO L168 Benchmark]: Toolchain (without parser) took 22416.82 ms. Allocated memory was 255.9 MB in the beginning and 570.4 MB in the end (delta: 314.6 MB). Free memory was 235.0 MB in the beginning and 445.2 MB in the end (delta: -210.2 MB). Peak memory consumption was 102.8 MB. Max. memory is 16.0 GB. [2021-03-26 00:23:46,470 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 255.9 MB. Free memory was 237.6 MB in the beginning and 237.5 MB in the end (delta: 160.0 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 00:23:46,470 INFO L168 Benchmark]: CACSL2BoogieTranslator took 432.30 ms. Allocated memory was 255.9 MB in the beginning and 327.2 MB in the end (delta: 71.3 MB). Free memory was 234.4 MB in the beginning and 288.2 MB in the end (delta: -53.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. [2021-03-26 00:23:46,471 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.99 ms. Allocated memory is still 327.2 MB. Free memory was 288.2 MB in the beginning and 285.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:23:46,471 INFO L168 Benchmark]: Boogie Preprocessor took 27.13 ms. Allocated memory is still 327.2 MB. Free memory was 285.4 MB in the beginning and 283.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:23:46,471 INFO L168 Benchmark]: RCFGBuilder took 1714.63 ms. Allocated memory is still 327.2 MB. Free memory was 283.3 MB in the beginning and 215.6 MB in the end (delta: 67.6 MB). Peak memory consumption was 71.8 MB. Max. memory is 16.0 GB. [2021-03-26 00:23:46,472 INFO L168 Benchmark]: TraceAbstraction took 20156.01 ms. Allocated memory was 327.2 MB in the beginning and 570.4 MB in the end (delta: 243.3 MB). Free memory was 215.6 MB in the beginning and 445.2 MB in the end (delta: -229.6 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.0 GB. [2021-03-26 00:23:46,473 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 255.9 MB. Free memory was 237.6 MB in the beginning and 237.5 MB in the end (delta: 160.0 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 432.30 ms. Allocated memory was 255.9 MB in the beginning and 327.2 MB in the end (delta: 71.3 MB). Free memory was 234.4 MB in the beginning and 288.2 MB in the end (delta: -53.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 81.99 ms. Allocated memory is still 327.2 MB. Free memory was 288.2 MB in the beginning and 285.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 27.13 ms. Allocated memory is still 327.2 MB. Free memory was 285.4 MB in the beginning and 283.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1714.63 ms. Allocated memory is still 327.2 MB. Free memory was 283.3 MB in the beginning and 215.6 MB in the end (delta: 67.6 MB). Peak memory consumption was 71.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 20156.01 ms. Allocated memory was 327.2 MB in the beginning and 570.4 MB in the end (delta: 243.3 MB). Free memory was 215.6 MB in the beginning and 445.2 MB in the end (delta: -229.6 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8550.8ms, 83 PlacesBefore, 36 PlacesAfterwards, 78 TransitionsBefore, 30 TransitionsAfterwards, 918 CoEnabledTransitionPairs, 5 FixpointIterations, 26 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 56 TotalNumberOfCompositions, 1544 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 817, positive: 762, positive conditional: 762, positive unconditional: 0, negative: 55, negative conditional: 55, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 598, positive: 570, positive conditional: 0, positive unconditional: 570, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 598, positive: 570, positive conditional: 0, positive unconditional: 570, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 598, positive: 567, positive conditional: 0, positive unconditional: 567, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 31, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 483, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 471, negative conditional: 0, negative unconditional: 471, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 817, positive: 192, positive conditional: 192, positive unconditional: 0, negative: 27, negative conditional: 27, negative unconditional: 0, unknown: 598, unknown conditional: 598, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 60, Positive cache size: 44, Positive conditional cache size: 44, Positive unconditional cache size: 0, Negative cache size: 16, Negative conditional cache size: 16, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3550.1ms, 34 PlacesBefore, 23 PlacesAfterwards, 23 TransitionsBefore, 16 TransitionsAfterwards, 128 CoEnabledTransitionPairs, 4 FixpointIterations, 5 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 536 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 256, positive: 194, positive conditional: 194, positive unconditional: 0, negative: 62, negative conditional: 62, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 70, positive: 51, positive conditional: 8, positive unconditional: 43, negative: 19, negative conditional: 7, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 70, positive: 51, positive conditional: 8, positive unconditional: 43, negative: 19, negative conditional: 7, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 70, positive: 49, positive conditional: 0, positive unconditional: 49, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 21, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 19, negative conditional: 7, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 504, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 498, negative conditional: 242, negative unconditional: 256, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 256, positive: 143, positive conditional: 143, positive unconditional: 0, negative: 43, negative conditional: 43, negative unconditional: 0, unknown: 70, unknown conditional: 70, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 80, Positive cache size: 57, Positive conditional cache size: 57, Positive unconditional cache size: 0, Negative cache size: 23, Negative conditional cache size: 23, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1560.4ms, 28 PlacesBefore, 27 PlacesAfterwards, 22 TransitionsBefore, 21 TransitionsAfterwards, 112 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 155 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 67, positive: 50, positive conditional: 50, positive unconditional: 0, negative: 17, negative conditional: 17, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 30, positive: 26, positive conditional: 12, positive unconditional: 14, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 30, positive: 26, positive conditional: 12, positive unconditional: 14, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 30, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 62, positive: 18, positive conditional: 18, positive unconditional: 0, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 67, positive: 24, positive conditional: 24, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 30, unknown conditional: 30, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 96, Positive cache size: 75, Positive conditional cache size: 75, Positive unconditional cache size: 0, Negative cache size: 21, Negative conditional cache size: 21, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 107.8ms, 32 PlacesBefore, 32 PlacesAfterwards, 23 TransitionsBefore, 23 TransitionsAfterwards, 118 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 80 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 51, positive: 43, positive conditional: 43, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 19, positive: 16, positive conditional: 13, positive unconditional: 3, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 19, positive: 16, positive conditional: 13, positive unconditional: 3, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 19, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 99, positive: 33, positive conditional: 33, positive unconditional: 0, negative: 66, negative conditional: 0, negative unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 51, positive: 27, positive conditional: 27, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 19, unknown conditional: 19, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 115, Positive cache size: 91, Positive conditional cache size: 91, Positive unconditional cache size: 0, Negative cache size: 24, Negative conditional cache size: 24, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.2ms, 37 PlacesBefore, 37 PlacesAfterwards, 26 TransitionsBefore, 26 TransitionsAfterwards, 124 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 78 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 52, positive: 44, positive conditional: 44, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18, positive: 16, positive conditional: 6, positive unconditional: 10, 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: 18, positive: 16, positive conditional: 6, positive unconditional: 10, 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: 18, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 10, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 52, positive: 28, positive conditional: 28, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 18, unknown conditional: 18, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 133, Positive cache size: 107, Positive conditional cache size: 107, Positive unconditional cache size: 0, Negative cache size: 26, Negative conditional cache size: 26, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3336.3ms, 44 PlacesBefore, 41 PlacesAfterwards, 27 TransitionsBefore, 23 TransitionsAfterwards, 94 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 116 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 87, positive: 72, positive conditional: 72, positive unconditional: 0, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 23, positive: 23, positive conditional: 23, 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: 23, positive: 23, positive conditional: 23, 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: 23, positive: 23, positive conditional: 0, positive unconditional: 23, 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: 87, positive: 49, positive conditional: 49, positive unconditional: 0, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 23, unknown conditional: 23, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 58, Positive conditional cache size: 58, Positive unconditional cache size: 0, Negative cache size: 9, Negative conditional cache size: 9, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 155.9ms, 36 PlacesBefore, 30 PlacesAfterwards, 17 TransitionsBefore, 15 TransitionsAfterwards, 12 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 10 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 9, positive: 4, positive conditional: 4, 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: 5, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 27, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 27, negative conditional: 27, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 9, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 8, Positive conditional cache size: 8, Positive unconditional cache size: 0, Negative cache size: 3, Negative conditional cache size: 3, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 791.1ms, 29 PlacesBefore, 29 PlacesAfterwards, 15 TransitionsBefore, 15 TransitionsAfterwards, 4 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 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): 11, Positive cache size: 8, Positive conditional cache size: 8, Positive unconditional cache size: 0, Negative cache size: 3, Negative conditional cache size: 3, Negative unconditional cache size: 0 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L708] 0 int __unbuffered_cnt = 0; [L710] 0 int __unbuffered_p1_EAX = 0; [L711] 0 _Bool main$tmp_guard0; [L712] 0 _Bool main$tmp_guard1; [L714] 0 int x = 0; [L715] 0 _Bool x$flush_delayed; [L716] 0 int x$mem_tmp; [L717] 0 _Bool x$r_buff0_thd0; [L718] 0 _Bool x$r_buff0_thd1; [L719] 0 _Bool x$r_buff0_thd2; [L720] 0 _Bool x$r_buff1_thd0; [L721] 0 _Bool x$r_buff1_thd1; [L722] 0 _Bool x$r_buff1_thd2; [L723] 0 _Bool x$read_delayed; [L724] 0 int *x$read_delayed_var; [L725] 0 int x$w_buff0; [L726] 0 _Bool x$w_buff0_used; [L727] 0 int x$w_buff1; [L728] 0 _Bool x$w_buff1_used; [L730] 0 int y = 0; [L731] 0 _Bool weak$$choice0; [L732] 0 _Bool weak$$choice2; [L792] 0 pthread_t t1447; [L793] FCALL, FORK 0 pthread_create(&t1447, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L794] 0 pthread_t t1448; [L795] FCALL, FORK 0 pthread_create(&t1448, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L756] 2 x$w_buff1 = x$w_buff0 [L757] 2 x$w_buff0 = 2 [L758] 2 x$w_buff1_used = x$w_buff0_used [L759] 2 x$w_buff0_used = (_Bool)1 [L18] COND FALSE 2 !(!expression) [L761] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L762] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L763] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L764] 2 x$r_buff0_thd2 = (_Bool)1 [L767] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0] [L736] 1 y = 1 [L739] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L770] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L770] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L771] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L771] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L772] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L772] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L773] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L773] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L774] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L774] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L777] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L779] 2 return 0; [L742] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L742] EXPR 1 x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x [L742] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L742] 1 x = x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L743] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L743] 1 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L744] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L744] 1 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L745] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L745] 1 x$r_buff0_thd1 = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L746] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 [L746] 1 x$r_buff1_thd1 = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 [L749] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L751] 1 return 0; [L797] 0 main$tmp_guard0 = __unbuffered_cnt == 2 [L3] COND FALSE 0 !(!cond) [L801] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L801] EXPR 0 x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x [L801] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L801] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L802] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L802] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L803] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L803] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L804] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L804] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L805] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L805] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L808] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L809] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L810] 0 x$flush_delayed = weak$$choice2 [L811] 0 x$mem_tmp = x [L812] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L812] 0 x = !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L813] EXPR 0 weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L813] 0 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L814] EXPR 0 weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L814] 0 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L815] EXPR 0 weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L815] 0 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L816] EXPR 0 weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L816] 0 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L817] EXPR 0 weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L817] 0 x$r_buff0_thd0 = weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L818] EXPR 0 weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L818] 0 x$r_buff1_thd0 = weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L819] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p1_EAX == 0) [L820] EXPR 0 x$flush_delayed ? x$mem_tmp : x [L820] 0 x = x$flush_delayed ? x$mem_tmp : x [L821] 0 x$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=53, weak$$choice2=255, x=2, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 79 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.0ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 20018.4ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 669.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8618.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 26 SDtfs, 38 SDslu, 27 SDs, 0 SdLazy, 165 SolverSat, 52 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 231.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 227.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=170occurred in iteration=5, InterpolantAutomatonStates: 36, 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: 23.6ms SsaConstructionTime, 338.9ms SatisfiabilityAnalysisTime, 612.1ms InterpolantComputationTime, 94 NumberOfCodeBlocks, 94 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 584 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...