/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/mix056_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 00:24:22,724 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 00:24:22,726 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 00:24:22,753 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 00:24:22,753 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 00:24:22,754 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 00:24:22,755 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 00:24:22,756 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 00:24:22,757 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 00:24:22,758 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 00:24:22,759 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 00:24:22,759 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 00:24:22,760 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 00:24:22,760 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 00:24:22,761 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 00:24:22,762 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 00:24:22,763 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 00:24:22,764 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 00:24:22,766 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 00:24:22,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 00:24:22,768 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 00:24:22,769 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 00:24:22,770 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 00:24:22,770 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 00:24:22,772 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 00:24:22,778 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 00:24:22,778 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 00:24:22,779 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 00:24:22,779 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 00:24:22,798 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 00:24:22,798 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 00:24:22,799 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 00:24:22,799 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 00:24:22,799 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 00:24:22,800 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 00:24:22,800 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 00:24:22,800 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 00:24:22,800 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 00:24:22,800 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 00:24:22,800 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 00:24:22,800 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 00:24:22,800 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 00:24:22,800 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 00:24:22,801 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 00:24:22,801 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 00:24:22,801 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 00:24:22,801 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 00:24:22,801 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 00:24:22,801 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 00:24:22,801 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 00:24:22,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 00:24:22,801 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 00:24:22,802 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 00:24:22,802 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 00:24:22,802 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 00:24:22,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 00:24:22,802 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-03-26 00:24:22,802 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 00:24:22,802 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 00:24:22,802 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 00:24:23,027 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 00:24:23,041 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 00:24:23,042 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 00:24:23,043 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 00:24:23,043 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 00:24:23,044 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix056_rmo.opt.i [2021-03-26 00:24:23,089 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3b17ebec/b2395c166c214841adb6006341a42f51/FLAGb204e8b4f [2021-03-26 00:24:23,500 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 00:24:23,500 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix056_rmo.opt.i [2021-03-26 00:24:23,515 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3b17ebec/b2395c166c214841adb6006341a42f51/FLAGb204e8b4f [2021-03-26 00:24:23,834 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3b17ebec/b2395c166c214841adb6006341a42f51 [2021-03-26 00:24:23,837 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 00:24:23,839 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 00:24:23,843 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 00:24:23,843 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 00:24:23,845 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 00:24:23,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:24:23" (1/1) ... [2021-03-26 00:24:23,847 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b2b5f25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:24:23, skipping insertion in model container [2021-03-26 00:24:23,847 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:24:23" (1/1) ... [2021-03-26 00:24:23,853 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 00:24:23,888 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 00:24:23,998 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/mix056_rmo.opt.i[948,961] [2021-03-26 00:24:24,171 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:24:24,179 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 00:24:24,187 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/mix056_rmo.opt.i[948,961] [2021-03-26 00:24:24,244 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:24:24,300 INFO L208 MainTranslator]: Completed translation [2021-03-26 00:24:24,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:24:24 WrapperNode [2021-03-26 00:24:24,301 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 00:24:24,302 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 00:24:24,303 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 00:24:24,303 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 00:24:24,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:24:24" (1/1) ... [2021-03-26 00:24:24,335 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:24:24" (1/1) ... [2021-03-26 00:24:24,368 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 00:24:24,369 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 00:24:24,369 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 00:24:24,369 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 00:24:24,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:24:24" (1/1) ... [2021-03-26 00:24:24,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:24:24" (1/1) ... [2021-03-26 00:24:24,387 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:24:24" (1/1) ... [2021-03-26 00:24:24,387 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:24:24" (1/1) ... [2021-03-26 00:24:24,392 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:24:24" (1/1) ... [2021-03-26 00:24:24,394 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:24:24" (1/1) ... [2021-03-26 00:24:24,412 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:24:24" (1/1) ... [2021-03-26 00:24:24,415 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 00:24:24,416 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 00:24:24,416 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 00:24:24,416 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 00:24:24,416 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:24:24" (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 00:24:24,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 00:24:24,523 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 00:24:24,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 00:24:24,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 00:24:24,524 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 00:24:24,524 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 00:24:24,525 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 00:24:24,525 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 00:24:24,525 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-26 00:24:24,525 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-26 00:24:24,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 00:24:24,525 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 00:24:24,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 00:24:24,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 00:24:24,527 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 00:24:25,611 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 00:24:25,612 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-26 00:24:25,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:24:25 BoogieIcfgContainer [2021-03-26 00:24:25,613 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 00:24:25,614 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 00:24:25,614 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 00:24:25,617 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 00:24:25,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 12:24:23" (1/3) ... [2021-03-26 00:24:25,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d07723b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:24:25, skipping insertion in model container [2021-03-26 00:24:25,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:24:24" (2/3) ... [2021-03-26 00:24:25,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d07723b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:24:25, skipping insertion in model container [2021-03-26 00:24:25,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:24:25" (3/3) ... [2021-03-26 00:24:25,619 INFO L111 eAbstractionObserver]: Analyzing ICFG mix056_rmo.opt.i [2021-03-26 00:24:25,624 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 00:24:25,627 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-26 00:24:25,628 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 00:24:25,657 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,657 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,657 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,657 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,658 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,658 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,658 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,658 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,658 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,658 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,659 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,659 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,659 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,659 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,659 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,660 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,660 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,660 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,660 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,661 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,661 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,661 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,661 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,661 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,662 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,662 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,662 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,662 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,662 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,662 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,663 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,663 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,663 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,663 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,664 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,664 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,664 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,664 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,664 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,664 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,664 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,664 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,664 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,665 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,665 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,665 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,665 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,665 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,665 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,665 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,666 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,666 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,666 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,666 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,666 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,666 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,666 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,666 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,667 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,667 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,667 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,667 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,667 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,667 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,668 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,668 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,668 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,668 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,670 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,670 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,670 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,671 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,672 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,672 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,672 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,672 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,672 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,672 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,673 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,673 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,673 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,673 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,674 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,674 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,674 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,674 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,675 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,675 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,675 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,676 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,676 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,676 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,676 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,676 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:24:25,678 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 00:24:25,692 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-03-26 00:24:25,716 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 00:24:25,716 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 00:24:25,716 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 00:24:25,716 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 00:24:25,716 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 00:24:25,716 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 00:24:25,716 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 00:24:25,716 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 00:24:25,724 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 104 places, 96 transitions, 207 flow [2021-03-26 00:24:25,747 INFO L129 PetriNetUnfolder]: 2/93 cut-off events. [2021-03-26 00:24:25,747 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:24:25,750 INFO L84 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 93 events. 2/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 66 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2021-03-26 00:24:25,750 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 96 transitions, 207 flow [2021-03-26 00:24:25,753 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 93 transitions, 195 flow [2021-03-26 00:24:25,754 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:24:25,763 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 93 transitions, 195 flow [2021-03-26 00:24:25,765 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 93 transitions, 195 flow [2021-03-26 00:24:25,766 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 101 places, 93 transitions, 195 flow [2021-03-26 00:24:25,778 INFO L129 PetriNetUnfolder]: 2/93 cut-off events. [2021-03-26 00:24:25,778 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:24:25,778 INFO L84 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 93 events. 2/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 67 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2021-03-26 00:24:25,780 INFO L142 LiptonReduction]: Number of co-enabled transitions 1578 [2021-03-26 00:24:27,385 WARN L205 SmtUtils]: Spent 988.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 185 [2021-03-26 00:24:27,710 WARN L205 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2021-03-26 00:24:28,968 WARN L205 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 310 DAG size of output: 265 [2021-03-26 00:24:29,527 WARN L205 SmtUtils]: Spent 556.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2021-03-26 00:24:29,929 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-26 00:24:30,296 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 84 [2021-03-26 00:24:30,407 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-03-26 00:24:31,408 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-03-26 00:24:31,684 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-03-26 00:24:32,230 WARN L205 SmtUtils]: Spent 544.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2021-03-26 00:24:32,761 WARN L205 SmtUtils]: Spent 529.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2021-03-26 00:24:32,986 INFO L154 LiptonReduction]: Checked pairs total: 2725 [2021-03-26 00:24:32,987 INFO L156 LiptonReduction]: Total number of compositions: 68 [2021-03-26 00:24:32,988 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7234 [2021-03-26 00:24:32,997 INFO L129 PetriNetUnfolder]: 0/24 cut-off events. [2021-03-26 00:24:32,997 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:24:32,997 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:24:32,998 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:24:32,998 INFO L428 AbstractCegarLoop]: === Iteration 1 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:24:33,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:24:33,007 INFO L82 PathProgramCache]: Analyzing trace with hash 1719955494, now seen corresponding path program 1 times [2021-03-26 00:24:33,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:24:33,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685917936] [2021-03-26 00:24:33,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:24:33,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:24:33,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:24:33,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:24:33,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:24:33,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:24:33,271 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 00:24:33,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685917936] [2021-03-26 00:24:33,272 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:24:33,272 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:24:33,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780896960] [2021-03-26 00:24:33,279 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 00:24:33,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:24:33,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 00:24:33,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 00:24:33,288 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 164 [2021-03-26 00:24:33,293 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 36 transitions, 81 flow. Second operand has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 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 00:24:33,293 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:24:33,293 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 164 [2021-03-26 00:24:33,293 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:24:33,354 INFO L129 PetriNetUnfolder]: 23/90 cut-off events. [2021-03-26 00:24:33,354 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:24:33,355 INFO L84 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 90 events. 23/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 305 event pairs, 3 based on Foata normal form. 5/87 useless extension candidates. Maximal degree in co-relation 129. Up to 37 conditions per place. [2021-03-26 00:24:33,356 INFO L132 encePairwiseOnDemand]: 160/164 looper letters, 7 selfloop transitions, 2 changer transitions 3/37 dead transitions. [2021-03-26 00:24:33,356 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 37 transitions, 105 flow [2021-03-26 00:24:33,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 00:24:33,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 00:24:33,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2021-03-26 00:24:33,367 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8882113821138211 [2021-03-26 00:24:33,367 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 437 transitions. [2021-03-26 00:24:33,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 437 transitions. [2021-03-26 00:24:33,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:24:33,371 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 437 transitions. [2021-03-26 00:24:33,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 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 00:24:33,390 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 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 00:24:33,390 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 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 00:24:33,391 INFO L185 Difference]: Start difference. First operand has 45 places, 36 transitions, 81 flow. Second operand 3 states and 437 transitions. [2021-03-26 00:24:33,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 37 transitions, 105 flow [2021-03-26 00:24:33,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 37 transitions, 102 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-26 00:24:33,394 INFO L241 Difference]: Finished difference. Result has 42 places, 31 transitions, 72 flow [2021-03-26 00:24:33,395 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=72, PETRI_PLACES=42, PETRI_TRANSITIONS=31} [2021-03-26 00:24:33,396 INFO L343 CegarLoopForPetriNet]: 45 programPoint places, -3 predicate places. [2021-03-26 00:24:33,396 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:24:33,396 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 31 transitions, 72 flow [2021-03-26 00:24:33,396 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 31 transitions, 72 flow [2021-03-26 00:24:33,396 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 31 transitions, 72 flow [2021-03-26 00:24:33,399 INFO L129 PetriNetUnfolder]: 0/31 cut-off events. [2021-03-26 00:24:33,399 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:24:33,399 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 31 events. 0/31 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 30 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-26 00:24:33,401 INFO L142 LiptonReduction]: Number of co-enabled transitions 230 [2021-03-26 00:24:33,841 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-03-26 00:24:34,104 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-03-26 00:24:34,607 WARN L205 SmtUtils]: Spent 501.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-03-26 00:24:35,149 WARN L205 SmtUtils]: Spent 540.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-03-26 00:24:36,024 INFO L154 LiptonReduction]: Checked pairs total: 1024 [2021-03-26 00:24:36,024 INFO L156 LiptonReduction]: Total number of compositions: 9 [2021-03-26 00:24:36,024 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2628 [2021-03-26 00:24:36,025 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 22 transitions, 54 flow [2021-03-26 00:24:36,025 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 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 00:24:36,026 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:24:36,026 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:24:36,026 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 00:24:36,026 INFO L428 AbstractCegarLoop]: === Iteration 2 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:24:36,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:24:36,026 INFO L82 PathProgramCache]: Analyzing trace with hash 236066665, now seen corresponding path program 1 times [2021-03-26 00:24:36,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:24:36,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630365182] [2021-03-26 00:24:36,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:24:36,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:24:36,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:24:36,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:24:36,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:24:36,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:24:36,138 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-26 00:24:36,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 00:24:36,141 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 00:24:36,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630365182] [2021-03-26 00:24:36,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:24:36,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:24:36,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940255268] [2021-03-26 00:24:36,142 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:24:36,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:24:36,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:24:36,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:24:36,143 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 173 [2021-03-26 00:24:36,144 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 22 transitions, 54 flow. Second operand has 4 states, 4 states have (on average 147.75) internal successors, (591), 4 states have internal predecessors, (591), 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 00:24:36,144 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:24:36,144 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 173 [2021-03-26 00:24:36,144 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:24:36,157 INFO L129 PetriNetUnfolder]: 3/34 cut-off events. [2021-03-26 00:24:36,157 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:24:36,157 INFO L84 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 34 events. 3/34 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 69 event pairs, 1 based on Foata normal form. 1/32 useless extension candidates. Maximal degree in co-relation 45. Up to 10 conditions per place. [2021-03-26 00:24:36,158 INFO L132 encePairwiseOnDemand]: 169/173 looper letters, 3 selfloop transitions, 3 changer transitions 0/24 dead transitions. [2021-03-26 00:24:36,158 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 24 transitions, 70 flow [2021-03-26 00:24:36,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 00:24:36,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 00:24:36,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 448 transitions. [2021-03-26 00:24:36,162 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8631984585741811 [2021-03-26 00:24:36,162 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 448 transitions. [2021-03-26 00:24:36,162 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 448 transitions. [2021-03-26 00:24:36,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:24:36,162 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 448 transitions. [2021-03-26 00:24:36,163 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 149.33333333333334) internal successors, (448), 3 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:24:36,164 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 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 00:24:36,164 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 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 00:24:36,164 INFO L185 Difference]: Start difference. First operand has 31 places, 22 transitions, 54 flow. Second operand 3 states and 448 transitions. [2021-03-26 00:24:36,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 24 transitions, 70 flow [2021-03-26 00:24:36,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 24 transitions, 66 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 00:24:36,165 INFO L241 Difference]: Finished difference. Result has 32 places, 24 transitions, 69 flow [2021-03-26 00:24:36,165 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=69, PETRI_PLACES=32, PETRI_TRANSITIONS=24} [2021-03-26 00:24:36,166 INFO L343 CegarLoopForPetriNet]: 45 programPoint places, -13 predicate places. [2021-03-26 00:24:36,166 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:24:36,166 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 24 transitions, 69 flow [2021-03-26 00:24:36,166 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 24 transitions, 69 flow [2021-03-26 00:24:36,166 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 24 transitions, 69 flow [2021-03-26 00:24:36,169 INFO L129 PetriNetUnfolder]: 3/30 cut-off events. [2021-03-26 00:24:36,170 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:24:36,170 INFO L84 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 30 events. 3/30 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 58 event pairs, 1 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 42. Up to 10 conditions per place. [2021-03-26 00:24:36,170 INFO L142 LiptonReduction]: Number of co-enabled transitions 238 [2021-03-26 00:24:36,458 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 112 [2021-03-26 00:24:36,575 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-03-26 00:24:36,815 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 112 [2021-03-26 00:24:36,927 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-03-26 00:24:36,929 INFO L154 LiptonReduction]: Checked pairs total: 422 [2021-03-26 00:24:36,929 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 00:24:36,930 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 764 [2021-03-26 00:24:36,930 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 23 transitions, 67 flow [2021-03-26 00:24:36,931 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 147.75) internal successors, (591), 4 states have internal predecessors, (591), 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 00:24:36,931 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:24:36,931 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:24:36,931 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 00:24:36,931 INFO L428 AbstractCegarLoop]: === Iteration 3 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:24:36,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:24:36,931 INFO L82 PathProgramCache]: Analyzing trace with hash 2078982232, now seen corresponding path program 1 times [2021-03-26 00:24:36,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:24:36,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650215157] [2021-03-26 00:24:36,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:24:36,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:24:36,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:24:36,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:24:36,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:24:36,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 00:24:36,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:24:36,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 00:24:36,989 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 00:24:36,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650215157] [2021-03-26 00:24:36,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:24:36,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:24:36,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132714278] [2021-03-26 00:24:36,990 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:24:36,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:24:36,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:24:36,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:24:36,991 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 174 [2021-03-26 00:24:36,991 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 23 transitions, 67 flow. Second operand has 5 states, 5 states have (on average 135.8) internal successors, (679), 5 states have internal predecessors, (679), 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 00:24:36,991 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:24:36,992 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 174 [2021-03-26 00:24:36,992 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:24:37,024 INFO L129 PetriNetUnfolder]: 66/151 cut-off events. [2021-03-26 00:24:37,025 INFO L130 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2021-03-26 00:24:37,025 INFO L84 FinitePrefix]: Finished finitePrefix Result has 303 conditions, 151 events. 66/151 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 648 event pairs, 24 based on Foata normal form. 1/135 useless extension candidates. Maximal degree in co-relation 293. Up to 101 conditions per place. [2021-03-26 00:24:37,026 INFO L132 encePairwiseOnDemand]: 168/174 looper letters, 7 selfloop transitions, 7 changer transitions 0/30 dead transitions. [2021-03-26 00:24:37,026 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 30 transitions, 111 flow [2021-03-26 00:24:37,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:24:37,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:24:37,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 555 transitions. [2021-03-26 00:24:37,028 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7974137931034483 [2021-03-26 00:24:37,028 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 555 transitions. [2021-03-26 00:24:37,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 555 transitions. [2021-03-26 00:24:37,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:24:37,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 555 transitions. [2021-03-26 00:24:37,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 138.75) internal successors, (555), 4 states have internal predecessors, (555), 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 00:24:37,030 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 174.0) internal successors, (870), 5 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 00:24:37,031 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 174.0) internal successors, (870), 5 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 00:24:37,031 INFO L185 Difference]: Start difference. First operand has 31 places, 23 transitions, 67 flow. Second operand 4 states and 555 transitions. [2021-03-26 00:24:37,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 30 transitions, 111 flow [2021-03-26 00:24:37,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 30 transitions, 108 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 00:24:37,031 INFO L241 Difference]: Finished difference. Result has 35 places, 29 transitions, 112 flow [2021-03-26 00:24:37,032 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=112, PETRI_PLACES=35, PETRI_TRANSITIONS=29} [2021-03-26 00:24:37,032 INFO L343 CegarLoopForPetriNet]: 45 programPoint places, -10 predicate places. [2021-03-26 00:24:37,032 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:24:37,032 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 29 transitions, 112 flow [2021-03-26 00:24:37,032 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 29 transitions, 112 flow [2021-03-26 00:24:37,032 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 29 transitions, 112 flow [2021-03-26 00:24:37,039 INFO L129 PetriNetUnfolder]: 18/75 cut-off events. [2021-03-26 00:24:37,039 INFO L130 PetriNetUnfolder]: For 25/26 co-relation queries the response was YES. [2021-03-26 00:24:37,039 INFO L84 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 75 events. 18/75 cut-off events. For 25/26 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 283 event pairs, 4 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 154. Up to 28 conditions per place. [2021-03-26 00:24:37,040 INFO L142 LiptonReduction]: Number of co-enabled transitions 300 [2021-03-26 00:24:37,084 INFO L154 LiptonReduction]: Checked pairs total: 123 [2021-03-26 00:24:37,084 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:24:37,084 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 52 [2021-03-26 00:24:37,085 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 29 transitions, 112 flow [2021-03-26 00:24:37,085 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 135.8) internal successors, (679), 5 states have internal predecessors, (679), 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 00:24:37,085 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:24:37,085 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:24:37,086 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 00:24:37,086 INFO L428 AbstractCegarLoop]: === Iteration 4 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:24:37,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:24:37,086 INFO L82 PathProgramCache]: Analyzing trace with hash 1029185198, now seen corresponding path program 1 times [2021-03-26 00:24:37,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:24:37,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937886951] [2021-03-26 00:24:37,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:24:37,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:24:37,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:24:37,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 00:24:37,193 INFO L142 QuantifierPusher]: treesize reduction 10, result has 81.5 percent of original size [2021-03-26 00:24:37,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 00:24:37,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:24:37,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 00:24:37,205 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 00:24:37,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937886951] [2021-03-26 00:24:37,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:24:37,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:24:37,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194667888] [2021-03-26 00:24:37,220 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:24:37,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:24:37,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:24:37,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:24:37,221 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 174 [2021-03-26 00:24:37,221 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 29 transitions, 112 flow. Second operand has 4 states, 4 states have (on average 132.0) internal successors, (528), 4 states have internal predecessors, (528), 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 00:24:37,221 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:24:37,221 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 174 [2021-03-26 00:24:37,222 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:24:37,271 INFO L129 PetriNetUnfolder]: 57/139 cut-off events. [2021-03-26 00:24:37,272 INFO L130 PetriNetUnfolder]: For 90/90 co-relation queries the response was YES. [2021-03-26 00:24:37,293 INFO L84 FinitePrefix]: Finished finitePrefix Result has 377 conditions, 139 events. 57/139 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 576 event pairs, 23 based on Foata normal form. 2/132 useless extension candidates. Maximal degree in co-relation 364. Up to 90 conditions per place. [2021-03-26 00:24:37,294 INFO L132 encePairwiseOnDemand]: 169/174 looper letters, 8 selfloop transitions, 7 changer transitions 0/31 dead transitions. [2021-03-26 00:24:37,294 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 31 transitions, 147 flow [2021-03-26 00:24:37,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:24:37,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:24:37,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 538 transitions. [2021-03-26 00:24:37,296 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7729885057471264 [2021-03-26 00:24:37,296 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 538 transitions. [2021-03-26 00:24:37,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 538 transitions. [2021-03-26 00:24:37,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:24:37,297 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 538 transitions. [2021-03-26 00:24:37,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 134.5) internal successors, (538), 4 states have internal predecessors, (538), 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 00:24:37,299 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 174.0) internal successors, (870), 5 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 00:24:37,299 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 174.0) internal successors, (870), 5 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 00:24:37,299 INFO L185 Difference]: Start difference. First operand has 35 places, 29 transitions, 112 flow. Second operand 4 states and 538 transitions. [2021-03-26 00:24:37,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 31 transitions, 147 flow [2021-03-26 00:24:37,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 31 transitions, 147 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-26 00:24:37,301 INFO L241 Difference]: Finished difference. Result has 39 places, 30 transitions, 138 flow [2021-03-26 00:24:37,301 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=138, PETRI_PLACES=39, PETRI_TRANSITIONS=30} [2021-03-26 00:24:37,301 INFO L343 CegarLoopForPetriNet]: 45 programPoint places, -6 predicate places. [2021-03-26 00:24:37,301 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:24:37,301 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 30 transitions, 138 flow [2021-03-26 00:24:37,301 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 30 transitions, 138 flow [2021-03-26 00:24:37,302 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 30 transitions, 138 flow [2021-03-26 00:24:37,309 INFO L129 PetriNetUnfolder]: 18/66 cut-off events. [2021-03-26 00:24:37,309 INFO L130 PetriNetUnfolder]: For 61/64 co-relation queries the response was YES. [2021-03-26 00:24:37,310 INFO L84 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 66 events. 18/66 cut-off events. For 61/64 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 213 event pairs, 7 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 173. Up to 26 conditions per place. [2021-03-26 00:24:37,310 INFO L142 LiptonReduction]: Number of co-enabled transitions 302 [2021-03-26 00:24:37,312 INFO L154 LiptonReduction]: Checked pairs total: 146 [2021-03-26 00:24:37,312 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:24:37,312 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11 [2021-03-26 00:24:37,313 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 30 transitions, 138 flow [2021-03-26 00:24:37,313 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 132.0) internal successors, (528), 4 states have internal predecessors, (528), 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 00:24:37,313 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:24:37,314 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:24:37,314 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 00:24:37,314 INFO L428 AbstractCegarLoop]: === Iteration 5 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:24:37,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:24:37,314 INFO L82 PathProgramCache]: Analyzing trace with hash 197899377, now seen corresponding path program 1 times [2021-03-26 00:24:37,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:24:37,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812221239] [2021-03-26 00:24:37,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:24:37,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:24:37,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:24:37,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 00:24:37,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:24:37,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 00:24:37,381 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 00:24:37,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812221239] [2021-03-26 00:24:37,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:24:37,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:24:37,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013331994] [2021-03-26 00:24:37,382 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:24:37,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:24:37,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:24:37,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:24:37,386 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 174 [2021-03-26 00:24:37,387 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 30 transitions, 138 flow. Second operand 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 00:24:37,387 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:24:37,387 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 174 [2021-03-26 00:24:37,387 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:24:37,435 INFO L129 PetriNetUnfolder]: 57/145 cut-off events. [2021-03-26 00:24:37,436 INFO L130 PetriNetUnfolder]: For 169/169 co-relation queries the response was YES. [2021-03-26 00:24:37,436 INFO L84 FinitePrefix]: Finished finitePrefix Result has 447 conditions, 145 events. 57/145 cut-off events. For 169/169 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 608 event pairs, 5 based on Foata normal form. 2/138 useless extension candidates. Maximal degree in co-relation 431. Up to 77 conditions per place. [2021-03-26 00:24:37,437 INFO L132 encePairwiseOnDemand]: 168/174 looper letters, 13 selfloop transitions, 7 changer transitions 0/36 dead transitions. [2021-03-26 00:24:37,437 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 36 transitions, 204 flow [2021-03-26 00:24:37,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:24:37,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:24:37,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 555 transitions. [2021-03-26 00:24:37,439 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7974137931034483 [2021-03-26 00:24:37,439 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 555 transitions. [2021-03-26 00:24:37,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 555 transitions. [2021-03-26 00:24:37,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:24:37,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 555 transitions. [2021-03-26 00:24:37,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 138.75) internal successors, (555), 4 states have internal predecessors, (555), 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 00:24:37,442 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 174.0) internal successors, (870), 5 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 00:24:37,443 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 174.0) internal successors, (870), 5 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 00:24:37,443 INFO L185 Difference]: Start difference. First operand has 39 places, 30 transitions, 138 flow. Second operand 4 states and 555 transitions. [2021-03-26 00:24:37,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 36 transitions, 204 flow [2021-03-26 00:24:37,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 36 transitions, 195 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 00:24:37,446 INFO L241 Difference]: Finished difference. Result has 41 places, 33 transitions, 163 flow [2021-03-26 00:24:37,446 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=163, PETRI_PLACES=41, PETRI_TRANSITIONS=33} [2021-03-26 00:24:37,446 INFO L343 CegarLoopForPetriNet]: 45 programPoint places, -4 predicate places. [2021-03-26 00:24:37,446 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:24:37,446 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 33 transitions, 163 flow [2021-03-26 00:24:37,447 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 33 transitions, 163 flow [2021-03-26 00:24:37,447 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 33 transitions, 163 flow [2021-03-26 00:24:37,458 INFO L129 PetriNetUnfolder]: 32/99 cut-off events. [2021-03-26 00:24:37,458 INFO L130 PetriNetUnfolder]: For 154/155 co-relation queries the response was YES. [2021-03-26 00:24:37,458 INFO L84 FinitePrefix]: Finished finitePrefix Result has 292 conditions, 99 events. 32/99 cut-off events. For 154/155 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 388 event pairs, 15 based on Foata normal form. 1/90 useless extension candidates. Maximal degree in co-relation 277. Up to 35 conditions per place. [2021-03-26 00:24:37,459 INFO L142 LiptonReduction]: Number of co-enabled transitions 322 [2021-03-26 00:24:37,462 INFO L154 LiptonReduction]: Checked pairs total: 135 [2021-03-26 00:24:37,462 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:24:37,462 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-03-26 00:24:37,463 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 33 transitions, 163 flow [2021-03-26 00:24:37,463 INFO L481 AbstractCegarLoop]: Interpolant automaton has 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 00:24:37,464 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:24:37,464 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:24:37,464 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 00:24:37,464 INFO L428 AbstractCegarLoop]: === Iteration 6 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:24:37,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:24:37,464 INFO L82 PathProgramCache]: Analyzing trace with hash -1038637903, now seen corresponding path program 2 times [2021-03-26 00:24:37,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:24:37,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770621744] [2021-03-26 00:24:37,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:24:37,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:24:37,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:24:37,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 00:24:37,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:24:37,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 00:24:37,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:24:37,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 00:24:37,539 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 00:24:37,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770621744] [2021-03-26 00:24:37,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:24:37,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:24:37,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774685026] [2021-03-26 00:24:37,556 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:24:37,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:24:37,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:24:37,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:24:37,557 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 174 [2021-03-26 00:24:37,558 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 33 transitions, 163 flow. Second operand has 5 states, 5 states have (on average 131.8) internal successors, (659), 5 states have internal predecessors, (659), 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 00:24:37,558 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:24:37,558 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 174 [2021-03-26 00:24:37,558 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:24:37,618 INFO L129 PetriNetUnfolder]: 51/131 cut-off events. [2021-03-26 00:24:37,618 INFO L130 PetriNetUnfolder]: For 204/206 co-relation queries the response was YES. [2021-03-26 00:24:37,619 INFO L84 FinitePrefix]: Finished finitePrefix Result has 460 conditions, 131 events. 51/131 cut-off events. For 204/206 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 553 event pairs, 7 based on Foata normal form. 6/128 useless extension candidates. Maximal degree in co-relation 443. Up to 73 conditions per place. [2021-03-26 00:24:37,619 INFO L132 encePairwiseOnDemand]: 168/174 looper letters, 12 selfloop transitions, 7 changer transitions 0/35 dead transitions. [2021-03-26 00:24:37,620 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 35 transitions, 211 flow [2021-03-26 00:24:37,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:24:37,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:24:37,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 538 transitions. [2021-03-26 00:24:37,622 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7729885057471264 [2021-03-26 00:24:37,622 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 538 transitions. [2021-03-26 00:24:37,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 538 transitions. [2021-03-26 00:24:37,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:24:37,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 538 transitions. [2021-03-26 00:24:37,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 134.5) internal successors, (538), 4 states have internal predecessors, (538), 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 00:24:37,624 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 174.0) internal successors, (870), 5 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 00:24:37,624 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 174.0) internal successors, (870), 5 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 00:24:37,624 INFO L185 Difference]: Start difference. First operand has 41 places, 33 transitions, 163 flow. Second operand 4 states and 538 transitions. [2021-03-26 00:24:37,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 35 transitions, 211 flow [2021-03-26 00:24:37,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 35 transitions, 203 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-03-26 00:24:37,626 INFO L241 Difference]: Finished difference. Result has 44 places, 33 transitions, 177 flow [2021-03-26 00:24:37,626 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=177, PETRI_PLACES=44, PETRI_TRANSITIONS=33} [2021-03-26 00:24:37,626 INFO L343 CegarLoopForPetriNet]: 45 programPoint places, -1 predicate places. [2021-03-26 00:24:37,626 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:24:37,627 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 33 transitions, 177 flow [2021-03-26 00:24:37,627 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 33 transitions, 177 flow [2021-03-26 00:24:37,627 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 33 transitions, 177 flow [2021-03-26 00:24:37,636 INFO L129 PetriNetUnfolder]: 27/86 cut-off events. [2021-03-26 00:24:37,637 INFO L130 PetriNetUnfolder]: For 190/192 co-relation queries the response was YES. [2021-03-26 00:24:37,637 INFO L84 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 86 events. 27/86 cut-off events. For 190/192 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 308 event pairs, 13 based on Foata normal form. 1/79 useless extension candidates. Maximal degree in co-relation 257. Up to 30 conditions per place. [2021-03-26 00:24:37,638 INFO L142 LiptonReduction]: Number of co-enabled transitions 322 [2021-03-26 00:24:37,640 INFO L154 LiptonReduction]: Checked pairs total: 165 [2021-03-26 00:24:37,640 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:24:37,640 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-03-26 00:24:37,641 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 33 transitions, 177 flow [2021-03-26 00:24:37,641 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 131.8) internal successors, (659), 5 states have internal predecessors, (659), 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 00:24:37,641 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:24:37,641 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:24:37,641 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 00:24:37,641 INFO L428 AbstractCegarLoop]: === Iteration 7 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:24:37,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:24:37,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1839913146, now seen corresponding path program 1 times [2021-03-26 00:24:37,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:24:37,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293841330] [2021-03-26 00:24:37,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:24:37,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:24:37,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:24:37,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 00:24:37,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:24:37,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 00:24:37,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:24:37,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 00:24:37,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:24:37,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 00:24:37,688 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 00:24:37,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293841330] [2021-03-26 00:24:37,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:24:37,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:24:37,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499175420] [2021-03-26 00:24:37,689 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:24:37,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:24:37,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:24:37,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:24:37,690 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 174 [2021-03-26 00:24:37,690 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 33 transitions, 177 flow. Second operand has 5 states, 5 states have (on average 132.0) internal successors, (660), 5 states have internal predecessors, (660), 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 00:24:37,690 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:24:37,690 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 174 [2021-03-26 00:24:37,691 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:24:37,741 INFO L129 PetriNetUnfolder]: 57/141 cut-off events. [2021-03-26 00:24:37,741 INFO L130 PetriNetUnfolder]: For 274/281 co-relation queries the response was YES. [2021-03-26 00:24:37,741 INFO L84 FinitePrefix]: Finished finitePrefix Result has 525 conditions, 141 events. 57/141 cut-off events. For 274/281 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 599 event pairs, 5 based on Foata normal form. 8/140 useless extension candidates. Maximal degree in co-relation 506. Up to 79 conditions per place. [2021-03-26 00:24:37,744 INFO L132 encePairwiseOnDemand]: 167/174 looper letters, 12 selfloop transitions, 10 changer transitions 0/38 dead transitions. [2021-03-26 00:24:37,744 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 38 transitions, 247 flow [2021-03-26 00:24:37,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:24:37,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:24:37,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 672 transitions. [2021-03-26 00:24:37,746 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7724137931034483 [2021-03-26 00:24:37,746 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 672 transitions. [2021-03-26 00:24:37,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 672 transitions. [2021-03-26 00:24:37,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:24:37,746 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 672 transitions. [2021-03-26 00:24:37,747 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 134.4) internal successors, (672), 5 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:24:37,748 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 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 00:24:37,749 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 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 00:24:37,749 INFO L185 Difference]: Start difference. First operand has 44 places, 33 transitions, 177 flow. Second operand 5 states and 672 transitions. [2021-03-26 00:24:37,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 38 transitions, 247 flow [2021-03-26 00:24:37,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 38 transitions, 231 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-03-26 00:24:37,752 INFO L241 Difference]: Finished difference. Result has 46 places, 36 transitions, 209 flow [2021-03-26 00:24:37,752 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=209, PETRI_PLACES=46, PETRI_TRANSITIONS=36} [2021-03-26 00:24:37,752 INFO L343 CegarLoopForPetriNet]: 45 programPoint places, 1 predicate places. [2021-03-26 00:24:37,752 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:24:37,753 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 36 transitions, 209 flow [2021-03-26 00:24:37,753 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 36 transitions, 209 flow [2021-03-26 00:24:37,753 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 36 transitions, 209 flow [2021-03-26 00:24:37,765 INFO L129 PetriNetUnfolder]: 32/95 cut-off events. [2021-03-26 00:24:37,765 INFO L130 PetriNetUnfolder]: For 242/253 co-relation queries the response was YES. [2021-03-26 00:24:37,766 INFO L84 FinitePrefix]: Finished finitePrefix Result has 337 conditions, 95 events. 32/95 cut-off events. For 242/253 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 350 event pairs, 9 based on Foata normal form. 1/84 useless extension candidates. Maximal degree in co-relation 319. Up to 40 conditions per place. [2021-03-26 00:24:37,766 INFO L142 LiptonReduction]: Number of co-enabled transitions 350 [2021-03-26 00:24:37,941 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2021-03-26 00:24:38,286 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 80 [2021-03-26 00:24:38,388 INFO L154 LiptonReduction]: Checked pairs total: 461 [2021-03-26 00:24:38,388 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 00:24:38,389 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 637 [2021-03-26 00:24:38,389 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 36 transitions, 212 flow [2021-03-26 00:24:38,389 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 132.0) internal successors, (660), 5 states have internal predecessors, (660), 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 00:24:38,390 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:24:38,390 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:24:38,390 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 00:24:38,390 INFO L428 AbstractCegarLoop]: === Iteration 8 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:24:38,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:24:38,390 INFO L82 PathProgramCache]: Analyzing trace with hash -2133007886, now seen corresponding path program 2 times [2021-03-26 00:24:38,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:24:38,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262074208] [2021-03-26 00:24:38,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:24:38,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:24:38,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:24:38,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 00:24:38,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:24:38,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 00:24:38,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:24:38,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 00:24:38,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:24:38,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 00:24:38,456 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 00:24:38,456 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262074208] [2021-03-26 00:24:38,456 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:24:38,456 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:24:38,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264548777] [2021-03-26 00:24:38,457 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 00:24:38,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:24:38,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 00:24:38,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-26 00:24:38,458 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 175 [2021-03-26 00:24:38,458 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 212 flow. Second operand has 6 states, 6 states have (on average 131.83333333333334) internal successors, (791), 6 states have internal predecessors, (791), 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 00:24:38,458 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:24:38,458 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 175 [2021-03-26 00:24:38,458 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:24:38,531 INFO L129 PetriNetUnfolder]: 56/150 cut-off events. [2021-03-26 00:24:38,531 INFO L130 PetriNetUnfolder]: For 373/379 co-relation queries the response was YES. [2021-03-26 00:24:38,532 INFO L84 FinitePrefix]: Finished finitePrefix Result has 610 conditions, 150 events. 56/150 cut-off events. For 373/379 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 688 event pairs, 3 based on Foata normal form. 8/144 useless extension candidates. Maximal degree in co-relation 590. Up to 64 conditions per place. [2021-03-26 00:24:38,533 INFO L132 encePairwiseOnDemand]: 168/175 looper letters, 10 selfloop transitions, 18 changer transitions 0/44 dead transitions. [2021-03-26 00:24:38,533 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 44 transitions, 326 flow [2021-03-26 00:24:38,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 00:24:38,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 00:24:38,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 808 transitions. [2021-03-26 00:24:38,535 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7695238095238095 [2021-03-26 00:24:38,535 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 808 transitions. [2021-03-26 00:24:38,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 808 transitions. [2021-03-26 00:24:38,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:24:38,536 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 808 transitions. [2021-03-26 00:24:38,537 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 134.66666666666666) internal successors, (808), 6 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:24:38,538 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 175.0) internal successors, (1225), 7 states have internal predecessors, (1225), 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 00:24:38,538 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 175.0) internal successors, (1225), 7 states have internal predecessors, (1225), 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 00:24:38,538 INFO L185 Difference]: Start difference. First operand has 46 places, 36 transitions, 212 flow. Second operand 6 states and 808 transitions. [2021-03-26 00:24:38,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 44 transitions, 326 flow [2021-03-26 00:24:38,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 44 transitions, 298 flow, removed 7 selfloop flow, removed 3 redundant places. [2021-03-26 00:24:38,542 INFO L241 Difference]: Finished difference. Result has 50 places, 41 transitions, 287 flow [2021-03-26 00:24:38,542 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=287, PETRI_PLACES=50, PETRI_TRANSITIONS=41} [2021-03-26 00:24:38,542 INFO L343 CegarLoopForPetriNet]: 45 programPoint places, 5 predicate places. [2021-03-26 00:24:38,542 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:24:38,542 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 41 transitions, 287 flow [2021-03-26 00:24:38,542 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 41 transitions, 287 flow [2021-03-26 00:24:38,543 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 41 transitions, 287 flow [2021-03-26 00:24:38,552 INFO L129 PetriNetUnfolder]: 30/96 cut-off events. [2021-03-26 00:24:38,552 INFO L130 PetriNetUnfolder]: For 281/284 co-relation queries the response was YES. [2021-03-26 00:24:38,552 INFO L84 FinitePrefix]: Finished finitePrefix Result has 384 conditions, 96 events. 30/96 cut-off events. For 281/284 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 348 event pairs, 7 based on Foata normal form. 1/90 useless extension candidates. Maximal degree in co-relation 364. Up to 36 conditions per place. [2021-03-26 00:24:38,553 INFO L142 LiptonReduction]: Number of co-enabled transitions 396 [2021-03-26 00:24:38,557 INFO L154 LiptonReduction]: Checked pairs total: 333 [2021-03-26 00:24:38,557 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:24:38,557 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-03-26 00:24:38,558 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 41 transitions, 287 flow [2021-03-26 00:24:38,558 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 131.83333333333334) internal successors, (791), 6 states have internal predecessors, (791), 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 00:24:38,558 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:24:38,558 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:24:38,558 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 00:24:38,558 INFO L428 AbstractCegarLoop]: === Iteration 9 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:24:38,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:24:38,558 INFO L82 PathProgramCache]: Analyzing trace with hash 437391875, now seen corresponding path program 1 times [2021-03-26 00:24:38,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:24:38,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110983145] [2021-03-26 00:24:38,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:24:38,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:24:38,623 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size [2021-03-26 00:24:38,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 00:24:38,642 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-26 00:24:38,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-26 00:24:38,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:24:38,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 00:24:38,678 INFO L142 QuantifierPusher]: treesize reduction 10, result has 84.4 percent of original size [2021-03-26 00:24:38,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-26 00:24:38,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:24:38,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 00:24:38,713 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 00:24:38,714 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110983145] [2021-03-26 00:24:38,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:24:38,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 00:24:38,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603021986] [2021-03-26 00:24:38,714 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 00:24:38,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:24:38,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 00:24:38,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-26 00:24:38,715 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 175 [2021-03-26 00:24:38,716 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 41 transitions, 287 flow. Second operand has 7 states, 7 states have (on average 124.85714285714286) internal successors, (874), 7 states have internal predecessors, (874), 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 00:24:38,716 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:24:38,716 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 175 [2021-03-26 00:24:38,716 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:24:38,826 INFO L129 PetriNetUnfolder]: 60/164 cut-off events. [2021-03-26 00:24:38,826 INFO L130 PetriNetUnfolder]: For 523/529 co-relation queries the response was YES. [2021-03-26 00:24:38,826 INFO L84 FinitePrefix]: Finished finitePrefix Result has 774 conditions, 164 events. 60/164 cut-off events. For 523/529 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 806 event pairs, 1 based on Foata normal form. 3/157 useless extension candidates. Maximal degree in co-relation 752. Up to 75 conditions per place. [2021-03-26 00:24:38,827 INFO L132 encePairwiseOnDemand]: 169/175 looper letters, 23 selfloop transitions, 9 changer transitions 0/48 dead transitions. [2021-03-26 00:24:38,827 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 48 transitions, 421 flow [2021-03-26 00:24:38,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:24:38,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:24:38,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 637 transitions. [2021-03-26 00:24:38,829 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.728 [2021-03-26 00:24:38,829 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 637 transitions. [2021-03-26 00:24:38,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 637 transitions. [2021-03-26 00:24:38,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:24:38,830 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 637 transitions. [2021-03-26 00:24:38,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 127.4) internal successors, (637), 5 states have internal predecessors, (637), 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 00:24:38,832 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 175.0) internal successors, (1050), 6 states have internal predecessors, (1050), 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 00:24:38,832 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 175.0) internal successors, (1050), 6 states have internal predecessors, (1050), 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 00:24:38,832 INFO L185 Difference]: Start difference. First operand has 50 places, 41 transitions, 287 flow. Second operand 5 states and 637 transitions. [2021-03-26 00:24:38,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 48 transitions, 421 flow [2021-03-26 00:24:38,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 48 transitions, 403 flow, removed 5 selfloop flow, removed 2 redundant places. [2021-03-26 00:24:38,836 INFO L241 Difference]: Finished difference. Result has 53 places, 43 transitions, 319 flow [2021-03-26 00:24:38,836 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=319, PETRI_PLACES=53, PETRI_TRANSITIONS=43} [2021-03-26 00:24:38,836 INFO L343 CegarLoopForPetriNet]: 45 programPoint places, 8 predicate places. [2021-03-26 00:24:38,836 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:24:38,836 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 43 transitions, 319 flow [2021-03-26 00:24:38,836 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 43 transitions, 319 flow [2021-03-26 00:24:38,836 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 43 transitions, 319 flow [2021-03-26 00:24:38,846 INFO L129 PetriNetUnfolder]: 33/105 cut-off events. [2021-03-26 00:24:38,846 INFO L130 PetriNetUnfolder]: For 383/388 co-relation queries the response was YES. [2021-03-26 00:24:38,847 INFO L84 FinitePrefix]: Finished finitePrefix Result has 447 conditions, 105 events. 33/105 cut-off events. For 383/388 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 420 event pairs, 7 based on Foata normal form. 1/99 useless extension candidates. Maximal degree in co-relation 425. Up to 42 conditions per place. [2021-03-26 00:24:38,847 INFO L142 LiptonReduction]: Number of co-enabled transitions 414 [2021-03-26 00:24:38,851 INFO L154 LiptonReduction]: Checked pairs total: 358 [2021-03-26 00:24:38,851 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:24:38,851 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-03-26 00:24:38,851 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 43 transitions, 319 flow [2021-03-26 00:24:38,852 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 124.85714285714286) internal successors, (874), 7 states have internal predecessors, (874), 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 00:24:38,852 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:24:38,852 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:24:38,852 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-26 00:24:38,852 INFO L428 AbstractCegarLoop]: === Iteration 10 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:24:38,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:24:38,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1204777379, now seen corresponding path program 1 times [2021-03-26 00:24:38,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:24:38,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751635118] [2021-03-26 00:24:38,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:24:38,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:24:38,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:24:38,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:24:38,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:24:38,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:24:38,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:24:38,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:24:38,891 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 00:24:38,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751635118] [2021-03-26 00:24:38,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:24:38,892 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:24:38,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84898764] [2021-03-26 00:24:38,893 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:24:38,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:24:38,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:24:38,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:24:38,894 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 175 [2021-03-26 00:24:38,894 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 43 transitions, 319 flow. Second operand has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 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 00:24:38,894 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:24:38,894 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 175 [2021-03-26 00:24:38,894 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:24:38,949 INFO L129 PetriNetUnfolder]: 145/327 cut-off events. [2021-03-26 00:24:38,949 INFO L130 PetriNetUnfolder]: For 1191/1325 co-relation queries the response was YES. [2021-03-26 00:24:38,951 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1192 conditions, 327 events. 145/327 cut-off events. For 1191/1325 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 1842 event pairs, 34 based on Foata normal form. 72/339 useless extension candidates. Maximal degree in co-relation 1168. Up to 178 conditions per place. [2021-03-26 00:24:38,952 INFO L132 encePairwiseOnDemand]: 169/175 looper letters, 14 selfloop transitions, 8 changer transitions 0/54 dead transitions. [2021-03-26 00:24:38,952 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 54 transitions, 385 flow [2021-03-26 00:24:38,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:24:38,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:24:38,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 725 transitions. [2021-03-26 00:24:38,954 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8285714285714286 [2021-03-26 00:24:38,954 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 725 transitions. [2021-03-26 00:24:38,954 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 725 transitions. [2021-03-26 00:24:38,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:24:38,954 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 725 transitions. [2021-03-26 00:24:38,955 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 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 00:24:38,957 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 175.0) internal successors, (1050), 6 states have internal predecessors, (1050), 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 00:24:38,957 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 175.0) internal successors, (1050), 6 states have internal predecessors, (1050), 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 00:24:38,957 INFO L185 Difference]: Start difference. First operand has 53 places, 43 transitions, 319 flow. Second operand 5 states and 725 transitions. [2021-03-26 00:24:38,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 54 transitions, 385 flow [2021-03-26 00:24:38,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 54 transitions, 366 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-03-26 00:24:38,960 INFO L241 Difference]: Finished difference. Result has 57 places, 50 transitions, 376 flow [2021-03-26 00:24:38,961 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=376, PETRI_PLACES=57, PETRI_TRANSITIONS=50} [2021-03-26 00:24:38,961 INFO L343 CegarLoopForPetriNet]: 45 programPoint places, 12 predicate places. [2021-03-26 00:24:38,961 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:24:38,961 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 50 transitions, 376 flow [2021-03-26 00:24:38,961 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 57 places, 50 transitions, 376 flow [2021-03-26 00:24:38,961 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 57 places, 50 transitions, 376 flow [2021-03-26 00:24:38,981 INFO L129 PetriNetUnfolder]: 106/257 cut-off events. [2021-03-26 00:24:38,981 INFO L130 PetriNetUnfolder]: For 1017/1109 co-relation queries the response was YES. [2021-03-26 00:24:38,982 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1116 conditions, 257 events. 106/257 cut-off events. For 1017/1109 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 1404 event pairs, 26 based on Foata normal form. 16/247 useless extension candidates. Maximal degree in co-relation 1092. Up to 111 conditions per place. [2021-03-26 00:24:38,984 INFO L142 LiptonReduction]: Number of co-enabled transitions 502 [2021-03-26 00:24:39,004 INFO L154 LiptonReduction]: Checked pairs total: 206 [2021-03-26 00:24:39,004 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:24:39,005 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 44 [2021-03-26 00:24:39,006 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 50 transitions, 376 flow [2021-03-26 00:24:39,006 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 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 00:24:39,007 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:24:39,007 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:24:39,007 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-26 00:24:39,007 INFO L428 AbstractCegarLoop]: === Iteration 11 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:24:39,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:24:39,007 INFO L82 PathProgramCache]: Analyzing trace with hash -1994237448, now seen corresponding path program 1 times [2021-03-26 00:24:39,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:24:39,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244006225] [2021-03-26 00:24:39,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:24:39,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:24:39,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:24:39,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 00:24:39,063 INFO L142 QuantifierPusher]: treesize reduction 10, result has 82.5 percent of original size [2021-03-26 00:24:39,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-26 00:24:39,077 INFO L142 QuantifierPusher]: treesize reduction 10, result has 83.3 percent of original size [2021-03-26 00:24:39,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-26 00:24:39,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:24:39,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 00:24:39,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:24:39,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 00:24:39,101 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 00:24:39,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244006225] [2021-03-26 00:24:39,101 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:24:39,101 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:24:39,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786590205] [2021-03-26 00:24:39,101 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 00:24:39,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:24:39,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 00:24:39,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-26 00:24:39,102 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 175 [2021-03-26 00:24:39,103 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 50 transitions, 376 flow. Second operand has 6 states, 6 states have (on average 126.0) internal successors, (756), 6 states have internal predecessors, (756), 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 00:24:39,103 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:24:39,103 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 175 [2021-03-26 00:24:39,103 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:24:39,205 INFO L129 PetriNetUnfolder]: 150/365 cut-off events. [2021-03-26 00:24:39,205 INFO L130 PetriNetUnfolder]: For 1984/2133 co-relation queries the response was YES. [2021-03-26 00:24:39,207 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1704 conditions, 365 events. 150/365 cut-off events. For 1984/2133 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 2170 event pairs, 34 based on Foata normal form. 32/360 useless extension candidates. Maximal degree in co-relation 1678. Up to 187 conditions per place. [2021-03-26 00:24:39,208 INFO L132 encePairwiseOnDemand]: 169/175 looper letters, 17 selfloop transitions, 15 changer transitions 0/55 dead transitions. [2021-03-26 00:24:39,208 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 55 transitions, 502 flow [2021-03-26 00:24:39,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 00:24:39,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 00:24:39,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 767 transitions. [2021-03-26 00:24:39,210 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7304761904761905 [2021-03-26 00:24:39,210 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 767 transitions. [2021-03-26 00:24:39,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 767 transitions. [2021-03-26 00:24:39,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:24:39,211 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 767 transitions. [2021-03-26 00:24:39,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 127.83333333333333) internal successors, (767), 6 states have internal predecessors, (767), 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 00:24:39,213 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 175.0) internal successors, (1225), 7 states have internal predecessors, (1225), 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 00:24:39,213 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 175.0) internal successors, (1225), 7 states have internal predecessors, (1225), 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 00:24:39,213 INFO L185 Difference]: Start difference. First operand has 57 places, 50 transitions, 376 flow. Second operand 6 states and 767 transitions. [2021-03-26 00:24:39,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 55 transitions, 502 flow [2021-03-26 00:24:39,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 55 transitions, 498 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 00:24:39,217 INFO L241 Difference]: Finished difference. Result has 62 places, 50 transitions, 415 flow [2021-03-26 00:24:39,217 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=415, PETRI_PLACES=62, PETRI_TRANSITIONS=50} [2021-03-26 00:24:39,217 INFO L343 CegarLoopForPetriNet]: 45 programPoint places, 17 predicate places. [2021-03-26 00:24:39,217 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:24:39,217 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 50 transitions, 415 flow [2021-03-26 00:24:39,217 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 50 transitions, 415 flow [2021-03-26 00:24:39,218 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 50 transitions, 415 flow [2021-03-26 00:24:39,242 INFO L129 PetriNetUnfolder]: 138/340 cut-off events. [2021-03-26 00:24:39,242 INFO L130 PetriNetUnfolder]: For 1436/1569 co-relation queries the response was YES. [2021-03-26 00:24:39,243 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1473 conditions, 340 events. 138/340 cut-off events. For 1436/1569 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 2007 event pairs, 38 based on Foata normal form. 19/319 useless extension candidates. Maximal degree in co-relation 1447. Up to 179 conditions per place. [2021-03-26 00:24:39,245 INFO L142 LiptonReduction]: Number of co-enabled transitions 500 [2021-03-26 00:24:39,250 INFO L154 LiptonReduction]: Checked pairs total: 204 [2021-03-26 00:24:39,250 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:24:39,250 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 33 [2021-03-26 00:24:39,250 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 50 transitions, 415 flow [2021-03-26 00:24:39,250 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 126.0) internal successors, (756), 6 states have internal predecessors, (756), 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 00:24:39,251 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:24:39,251 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:24:39,251 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-26 00:24:39,251 INFO L428 AbstractCegarLoop]: === Iteration 12 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:24:39,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:24:39,251 INFO L82 PathProgramCache]: Analyzing trace with hash 583779411, now seen corresponding path program 1 times [2021-03-26 00:24:39,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:24:39,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337774190] [2021-03-26 00:24:39,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:24:39,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:24:39,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:24:39,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:24:39,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:24:39,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:24:39,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:24:39,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:24:39,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:24:39,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:24:39,305 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 00:24:39,305 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337774190] [2021-03-26 00:24:39,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:24:39,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:24:39,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547611229] [2021-03-26 00:24:39,306 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:24:39,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:24:39,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:24:39,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:24:39,307 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 175 [2021-03-26 00:24:39,307 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 50 transitions, 415 flow. Second operand has 5 states, 5 states have (on average 141.8) internal successors, (709), 5 states have internal predecessors, (709), 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 00:24:39,307 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:24:39,307 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 175 [2021-03-26 00:24:39,308 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:24:39,363 INFO L129 PetriNetUnfolder]: 116/304 cut-off events. [2021-03-26 00:24:39,363 INFO L130 PetriNetUnfolder]: For 1991/3191 co-relation queries the response was YES. [2021-03-26 00:24:39,364 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1276 conditions, 304 events. 116/304 cut-off events. For 1991/3191 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 1763 event pairs, 7 based on Foata normal form. 178/440 useless extension candidates. Maximal degree in co-relation 1248. Up to 182 conditions per place. [2021-03-26 00:24:39,365 INFO L132 encePairwiseOnDemand]: 169/175 looper letters, 8 selfloop transitions, 15 changer transitions 3/54 dead transitions. [2021-03-26 00:24:39,365 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 54 transitions, 439 flow [2021-03-26 00:24:39,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 00:24:39,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 00:24:39,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1015 transitions. [2021-03-26 00:24:39,367 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8285714285714286 [2021-03-26 00:24:39,367 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1015 transitions. [2021-03-26 00:24:39,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1015 transitions. [2021-03-26 00:24:39,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:24:39,368 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1015 transitions. [2021-03-26 00:24:39,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 145.0) internal successors, (1015), 7 states have internal predecessors, (1015), 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 00:24:39,371 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 175.0) internal successors, (1400), 8 states have internal predecessors, (1400), 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 00:24:39,371 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 175.0) internal successors, (1400), 8 states have internal predecessors, (1400), 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 00:24:39,371 INFO L185 Difference]: Start difference. First operand has 62 places, 50 transitions, 415 flow. Second operand 7 states and 1015 transitions. [2021-03-26 00:24:39,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 54 transitions, 439 flow [2021-03-26 00:24:39,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 54 transitions, 421 flow, removed 3 selfloop flow, removed 4 redundant places. [2021-03-26 00:24:39,375 INFO L241 Difference]: Finished difference. Result has 67 places, 49 transitions, 406 flow [2021-03-26 00:24:39,375 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=307, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=406, PETRI_PLACES=67, PETRI_TRANSITIONS=49} [2021-03-26 00:24:39,375 INFO L343 CegarLoopForPetriNet]: 45 programPoint places, 22 predicate places. [2021-03-26 00:24:39,375 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:24:39,375 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 49 transitions, 406 flow [2021-03-26 00:24:39,375 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 49 transitions, 406 flow [2021-03-26 00:24:39,376 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 49 transitions, 406 flow [2021-03-26 00:24:39,391 INFO L129 PetriNetUnfolder]: 66/223 cut-off events. [2021-03-26 00:24:39,392 INFO L130 PetriNetUnfolder]: For 1484/1853 co-relation queries the response was YES. [2021-03-26 00:24:39,392 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1097 conditions, 223 events. 66/223 cut-off events. For 1484/1853 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 1309 event pairs, 7 based on Foata normal form. 13/218 useless extension candidates. Maximal degree in co-relation 1068. Up to 128 conditions per place. [2021-03-26 00:24:39,394 INFO L142 LiptonReduction]: Number of co-enabled transitions 548 [2021-03-26 00:24:39,401 INFO L154 LiptonReduction]: Checked pairs total: 424 [2021-03-26 00:24:39,401 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 00:24:39,401 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 26 [2021-03-26 00:24:39,402 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 47 transitions, 390 flow [2021-03-26 00:24:39,403 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 141.8) internal successors, (709), 5 states have internal predecessors, (709), 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 00:24:39,403 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:24:39,403 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:24:39,403 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-26 00:24:39,403 INFO L428 AbstractCegarLoop]: === Iteration 13 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:24:39,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:24:39,403 INFO L82 PathProgramCache]: Analyzing trace with hash -121288443, now seen corresponding path program 1 times [2021-03-26 00:24:39,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:24:39,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096112828] [2021-03-26 00:24:39,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:24:39,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:24:39,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:24:39,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:24:39,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:24:39,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:24:39,432 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 00:24:39,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096112828] [2021-03-26 00:24:39,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:24:39,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:24:39,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080163747] [2021-03-26 00:24:39,432 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 00:24:39,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:24:39,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 00:24:39,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 00:24:39,433 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 175 [2021-03-26 00:24:39,433 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 47 transitions, 390 flow. Second operand has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 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 00:24:39,434 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:24:39,434 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 175 [2021-03-26 00:24:39,434 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:24:39,457 INFO L129 PetriNetUnfolder]: 69/207 cut-off events. [2021-03-26 00:24:39,457 INFO L130 PetriNetUnfolder]: For 1381/1446 co-relation queries the response was YES. [2021-03-26 00:24:39,458 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1070 conditions, 207 events. 69/207 cut-off events. For 1381/1446 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1046 event pairs, 12 based on Foata normal form. 11/206 useless extension candidates. Maximal degree in co-relation 1039. Up to 112 conditions per place. [2021-03-26 00:24:39,458 INFO L132 encePairwiseOnDemand]: 172/175 looper letters, 3 selfloop transitions, 3 changer transitions 0/41 dead transitions. [2021-03-26 00:24:39,458 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 41 transitions, 345 flow [2021-03-26 00:24:39,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 00:24:39,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 00:24:39,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 462 transitions. [2021-03-26 00:24:39,460 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.88 [2021-03-26 00:24:39,460 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 462 transitions. [2021-03-26 00:24:39,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 462 transitions. [2021-03-26 00:24:39,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:24:39,460 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 462 transitions. [2021-03-26 00:24:39,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 154.0) internal successors, (462), 3 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:24:39,462 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 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 00:24:39,462 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 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 00:24:39,462 INFO L185 Difference]: Start difference. First operand has 67 places, 47 transitions, 390 flow. Second operand 3 states and 462 transitions. [2021-03-26 00:24:39,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 41 transitions, 345 flow [2021-03-26 00:24:39,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 41 transitions, 323 flow, removed 9 selfloop flow, removed 4 redundant places. [2021-03-26 00:24:39,466 INFO L241 Difference]: Finished difference. Result has 61 places, 41 transitions, 322 flow [2021-03-26 00:24:39,466 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=311, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=322, PETRI_PLACES=61, PETRI_TRANSITIONS=41} [2021-03-26 00:24:39,466 INFO L343 CegarLoopForPetriNet]: 45 programPoint places, 16 predicate places. [2021-03-26 00:24:39,467 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:24:39,467 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 41 transitions, 322 flow [2021-03-26 00:24:39,467 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 41 transitions, 322 flow [2021-03-26 00:24:39,467 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 41 transitions, 322 flow [2021-03-26 00:24:39,482 INFO L129 PetriNetUnfolder]: 69/207 cut-off events. [2021-03-26 00:24:39,482 INFO L130 PetriNetUnfolder]: For 751/778 co-relation queries the response was YES. [2021-03-26 00:24:39,482 INFO L84 FinitePrefix]: Finished finitePrefix Result has 916 conditions, 207 events. 69/207 cut-off events. For 751/778 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1069 event pairs, 12 based on Foata normal form. 4/199 useless extension candidates. Maximal degree in co-relation 889. Up to 76 conditions per place. [2021-03-26 00:24:39,483 INFO L142 LiptonReduction]: Number of co-enabled transitions 356 [2021-03-26 00:24:39,486 INFO L154 LiptonReduction]: Checked pairs total: 165 [2021-03-26 00:24:39,486 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:24:39,486 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 19 [2021-03-26 00:24:39,487 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 41 transitions, 322 flow [2021-03-26 00:24:39,487 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 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 00:24:39,487 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:24:39,487 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:24:39,487 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-26 00:24:39,488 INFO L428 AbstractCegarLoop]: === Iteration 14 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:24:39,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:24:39,488 INFO L82 PathProgramCache]: Analyzing trace with hash 2076737745, now seen corresponding path program 1 times [2021-03-26 00:24:39,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:24:39,488 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474591179] [2021-03-26 00:24:39,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:24:39,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:24:39,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:24:39,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:24:39,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:24:39,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:24:39,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:24:39,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:24:39,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:24:39,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:24:39,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:24:39,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:24:39,536 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 00:24:39,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474591179] [2021-03-26 00:24:39,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:24:39,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 00:24:39,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165844394] [2021-03-26 00:24:39,536 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 00:24:39,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:24:39,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 00:24:39,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-26 00:24:39,537 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 175 [2021-03-26 00:24:39,538 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 41 transitions, 322 flow. Second operand has 6 states, 6 states have (on average 141.83333333333334) internal successors, (851), 6 states have internal predecessors, (851), 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 00:24:39,538 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:24:39,538 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 175 [2021-03-26 00:24:39,538 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:24:39,589 INFO L129 PetriNetUnfolder]: 105/251 cut-off events. [2021-03-26 00:24:39,589 INFO L130 PetriNetUnfolder]: For 789/1117 co-relation queries the response was YES. [2021-03-26 00:24:39,590 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1023 conditions, 251 events. 105/251 cut-off events. For 789/1117 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1266 event pairs, 0 based on Foata normal form. 72/285 useless extension candidates. Maximal degree in co-relation 994. Up to 109 conditions per place. [2021-03-26 00:24:39,590 INFO L132 encePairwiseOnDemand]: 169/175 looper letters, 5 selfloop transitions, 11 changer transitions 6/48 dead transitions. [2021-03-26 00:24:39,590 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 48 transitions, 398 flow [2021-03-26 00:24:39,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 00:24:39,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 00:24:39,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1009 transitions. [2021-03-26 00:24:39,592 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8236734693877551 [2021-03-26 00:24:39,592 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1009 transitions. [2021-03-26 00:24:39,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1009 transitions. [2021-03-26 00:24:39,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:24:39,593 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1009 transitions. [2021-03-26 00:24:39,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 144.14285714285714) internal successors, (1009), 7 states have internal predecessors, (1009), 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 00:24:39,596 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 175.0) internal successors, (1400), 8 states have internal predecessors, (1400), 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 00:24:39,596 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 175.0) internal successors, (1400), 8 states have internal predecessors, (1400), 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 00:24:39,596 INFO L185 Difference]: Start difference. First operand has 61 places, 41 transitions, 322 flow. Second operand 7 states and 1009 transitions. [2021-03-26 00:24:39,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 48 transitions, 398 flow [2021-03-26 00:24:39,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 48 transitions, 348 flow, removed 19 selfloop flow, removed 3 redundant places. [2021-03-26 00:24:39,598 INFO L241 Difference]: Finished difference. Result has 67 places, 40 transitions, 310 flow [2021-03-26 00:24:39,598 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=310, PETRI_PLACES=67, PETRI_TRANSITIONS=40} [2021-03-26 00:24:39,598 INFO L343 CegarLoopForPetriNet]: 45 programPoint places, 22 predicate places. [2021-03-26 00:24:39,598 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:24:39,598 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 40 transitions, 310 flow [2021-03-26 00:24:39,599 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 40 transitions, 310 flow [2021-03-26 00:24:39,599 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 40 transitions, 310 flow [2021-03-26 00:24:39,637 INFO L129 PetriNetUnfolder]: 17/76 cut-off events. [2021-03-26 00:24:39,637 INFO L130 PetriNetUnfolder]: For 201/211 co-relation queries the response was YES. [2021-03-26 00:24:39,637 INFO L84 FinitePrefix]: Finished finitePrefix Result has 336 conditions, 76 events. 17/76 cut-off events. For 201/211 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 267 event pairs, 0 based on Foata normal form. 2/76 useless extension candidates. Maximal degree in co-relation 307. Up to 30 conditions per place. [2021-03-26 00:24:39,638 INFO L142 LiptonReduction]: Number of co-enabled transitions 234 [2021-03-26 00:24:39,864 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-03-26 00:24:39,967 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-03-26 00:24:40,569 WARN L205 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 180 [2021-03-26 00:24:40,752 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-03-26 00:24:42,001 WARN L205 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 334 DAG size of output: 258 [2021-03-26 00:24:42,494 WARN L205 SmtUtils]: Spent 489.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-03-26 00:24:42,726 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2021-03-26 00:24:42,937 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2021-03-26 00:24:43,410 WARN L205 SmtUtils]: Spent 470.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2021-03-26 00:24:43,950 WARN L205 SmtUtils]: Spent 539.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2021-03-26 00:24:43,964 INFO L154 LiptonReduction]: Checked pairs total: 331 [2021-03-26 00:24:43,964 INFO L156 LiptonReduction]: Total number of compositions: 8 [2021-03-26 00:24:43,964 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4366 [2021-03-26 00:24:43,971 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 35 transitions, 298 flow [2021-03-26 00:24:43,972 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 141.83333333333334) internal successors, (851), 6 states have internal predecessors, (851), 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 00:24:43,972 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:24:43,972 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:24:43,972 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-26 00:24:43,972 INFO L428 AbstractCegarLoop]: === Iteration 15 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:24:43,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:24:43,972 INFO L82 PathProgramCache]: Analyzing trace with hash -122520590, now seen corresponding path program 1 times [2021-03-26 00:24:43,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:24:43,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942322072] [2021-03-26 00:24:43,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:24:44,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:24:44,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:24:44,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:24:44,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:24:44,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:24:44,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:24:44,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:24:44,050 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 00:24:44,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942322072] [2021-03-26 00:24:44,050 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:24:44,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:24:44,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621812896] [2021-03-26 00:24:44,050 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:24:44,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:24:44,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:24:44,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:24:44,051 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 182 [2021-03-26 00:24:44,052 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 35 transitions, 298 flow. Second operand has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 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 00:24:44,052 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:24:44,052 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 182 [2021-03-26 00:24:44,052 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:24:44,094 INFO L129 PetriNetUnfolder]: 29/97 cut-off events. [2021-03-26 00:24:44,094 INFO L130 PetriNetUnfolder]: For 489/520 co-relation queries the response was YES. [2021-03-26 00:24:44,095 INFO L84 FinitePrefix]: Finished finitePrefix Result has 443 conditions, 97 events. 29/97 cut-off events. For 489/520 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 374 event pairs, 0 based on Foata normal form. 8/101 useless extension candidates. Maximal degree in co-relation 412. Up to 45 conditions per place. [2021-03-26 00:24:44,095 INFO L132 encePairwiseOnDemand]: 179/182 looper letters, 3 selfloop transitions, 1 changer transitions 11/36 dead transitions. [2021-03-26 00:24:44,095 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 36 transitions, 310 flow [2021-03-26 00:24:44,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:24:44,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:24:44,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 602 transitions. [2021-03-26 00:24:44,097 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8269230769230769 [2021-03-26 00:24:44,097 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 602 transitions. [2021-03-26 00:24:44,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 602 transitions. [2021-03-26 00:24:44,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:24:44,097 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 602 transitions. [2021-03-26 00:24:44,098 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 150.5) internal successors, (602), 4 states have internal predecessors, (602), 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 00:24:44,099 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 182.0) internal successors, (910), 5 states have internal predecessors, (910), 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 00:24:44,099 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 182.0) internal successors, (910), 5 states have internal predecessors, (910), 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 00:24:44,099 INFO L185 Difference]: Start difference. First operand has 61 places, 35 transitions, 298 flow. Second operand 4 states and 602 transitions. [2021-03-26 00:24:44,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 36 transitions, 310 flow [2021-03-26 00:24:44,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 36 transitions, 263 flow, removed 11 selfloop flow, removed 10 redundant places. [2021-03-26 00:24:44,101 INFO L241 Difference]: Finished difference. Result has 56 places, 25 transitions, 164 flow [2021-03-26 00:24:44,102 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=164, PETRI_PLACES=56, PETRI_TRANSITIONS=25} [2021-03-26 00:24:44,102 INFO L343 CegarLoopForPetriNet]: 45 programPoint places, 11 predicate places. [2021-03-26 00:24:44,102 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:24:44,102 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 25 transitions, 164 flow [2021-03-26 00:24:44,102 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 25 transitions, 164 flow [2021-03-26 00:24:44,102 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 25 transitions, 164 flow [2021-03-26 00:24:44,106 INFO L129 PetriNetUnfolder]: 8/38 cut-off events. [2021-03-26 00:24:44,106 INFO L130 PetriNetUnfolder]: For 109/113 co-relation queries the response was YES. [2021-03-26 00:24:44,106 INFO L84 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 38 events. 8/38 cut-off events. For 109/113 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 76 event pairs, 0 based on Foata normal form. 3/40 useless extension candidates. Maximal degree in co-relation 122. Up to 12 conditions per place. [2021-03-26 00:24:44,107 INFO L142 LiptonReduction]: Number of co-enabled transitions 76 [2021-03-26 00:24:44,268 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-03-26 00:24:44,651 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 92 [2021-03-26 00:24:44,776 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-03-26 00:24:44,909 INFO L154 LiptonReduction]: Checked pairs total: 16 [2021-03-26 00:24:44,909 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 00:24:44,909 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 807 [2021-03-26 00:24:44,910 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 24 transitions, 176 flow [2021-03-26 00:24:44,910 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 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 00:24:44,910 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:24:44,910 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:24:44,910 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-26 00:24:44,910 INFO L428 AbstractCegarLoop]: === Iteration 16 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:24:44,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:24:44,910 INFO L82 PathProgramCache]: Analyzing trace with hash 428904219, now seen corresponding path program 1 times [2021-03-26 00:24:44,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:24:44,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344717797] [2021-03-26 00:24:44,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:24:44,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 00:24:44,926 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 00:24:44,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 00:24:44,942 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 00:24:44,973 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 00:24:44,975 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 00:24:44,975 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-26 00:24:45,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 12:24:45 BasicIcfg [2021-03-26 00:24:45,059 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 00:24:45,059 INFO L168 Benchmark]: Toolchain (without parser) took 21219.99 ms. Allocated memory was 318.8 MB in the beginning and 767.6 MB in the end (delta: 448.8 MB). Free memory was 281.8 MB in the beginning and 432.2 MB in the end (delta: -150.4 MB). Peak memory consumption was 300.4 MB. Max. memory is 16.0 GB. [2021-03-26 00:24:45,059 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 318.8 MB. Free memory was 299.8 MB in the beginning and 299.6 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 00:24:45,059 INFO L168 Benchmark]: CACSL2BoogieTranslator took 459.17 ms. Allocated memory is still 318.8 MB. Free memory was 281.6 MB in the beginning and 278.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.0 GB. [2021-03-26 00:24:45,060 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.03 ms. Allocated memory is still 318.8 MB. Free memory was 277.5 MB in the beginning and 275.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:24:45,060 INFO L168 Benchmark]: Boogie Preprocessor took 46.38 ms. Allocated memory is still 318.8 MB. Free memory was 275.4 MB in the beginning and 273.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:24:45,060 INFO L168 Benchmark]: RCFGBuilder took 1197.83 ms. Allocated memory is still 318.8 MB. Free memory was 273.3 MB in the beginning and 253.6 MB in the end (delta: 19.7 MB). Peak memory consumption was 163.6 MB. Max. memory is 16.0 GB. [2021-03-26 00:24:45,060 INFO L168 Benchmark]: TraceAbstraction took 19444.26 ms. Allocated memory was 318.8 MB in the beginning and 767.6 MB in the end (delta: 448.8 MB). Free memory was 252.6 MB in the beginning and 432.2 MB in the end (delta: -179.6 MB). Peak memory consumption was 268.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:24:45,061 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 318.8 MB. Free memory was 299.8 MB in the beginning and 299.6 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 459.17 ms. Allocated memory is still 318.8 MB. Free memory was 281.6 MB in the beginning and 278.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 66.03 ms. Allocated memory is still 318.8 MB. Free memory was 277.5 MB in the beginning and 275.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 46.38 ms. Allocated memory is still 318.8 MB. Free memory was 275.4 MB in the beginning and 273.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1197.83 ms. Allocated memory is still 318.8 MB. Free memory was 273.3 MB in the beginning and 253.6 MB in the end (delta: 19.7 MB). Peak memory consumption was 163.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 19444.26 ms. Allocated memory was 318.8 MB in the beginning and 767.6 MB in the end (delta: 448.8 MB). Free memory was 252.6 MB in the beginning and 432.2 MB in the end (delta: -179.6 MB). Peak memory consumption was 268.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7221.8ms, 101 PlacesBefore, 45 PlacesAfterwards, 93 TransitionsBefore, 36 TransitionsAfterwards, 1578 CoEnabledTransitionPairs, 6 FixpointIterations, 26 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 68 TotalNumberOfCompositions, 2725 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1341, positive: 1260, positive conditional: 1260, positive unconditional: 0, negative: 81, negative conditional: 81, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1078, positive: 1046, positive conditional: 0, positive unconditional: 1046, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1078, positive: 1046, positive conditional: 0, positive unconditional: 1046, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1078, positive: 1042, positive conditional: 0, positive unconditional: 1042, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 36, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 484, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 475, negative conditional: 0, negative unconditional: 475, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1341, positive: 214, positive conditional: 214, positive unconditional: 0, negative: 49, negative conditional: 49, negative unconditional: 0, unknown: 1078, unknown conditional: 1078, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 46, Positive cache size: 28, Positive conditional cache size: 28, Positive unconditional cache size: 0, Negative cache size: 18, Negative conditional cache size: 18, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2627.8ms, 42 PlacesBefore, 31 PlacesAfterwards, 31 TransitionsBefore, 22 TransitionsAfterwards, 230 CoEnabledTransitionPairs, 4 FixpointIterations, 8 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 9 TotalNumberOfCompositions, 1024 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 237, positive: 158, positive conditional: 158, positive unconditional: 0, negative: 79, negative conditional: 79, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 61, positive: 45, positive conditional: 6, positive unconditional: 39, negative: 16, negative conditional: 2, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 61, positive: 45, positive conditional: 6, positive unconditional: 39, negative: 16, negative conditional: 2, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 61, positive: 44, positive conditional: 0, positive unconditional: 44, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 17, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 16, negative conditional: 2, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 255, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 253, negative conditional: 58, negative unconditional: 195, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 237, positive: 113, positive conditional: 113, positive unconditional: 0, negative: 63, negative conditional: 63, negative unconditional: 0, unknown: 61, unknown conditional: 61, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 82, Positive cache size: 58, Positive conditional cache size: 58, 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: 763.3ms, 32 PlacesBefore, 31 PlacesAfterwards, 24 TransitionsBefore, 23 TransitionsAfterwards, 238 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 422 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 78, positive: 46, positive conditional: 46, positive unconditional: 0, negative: 32, negative conditional: 32, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13, positive: 11, positive conditional: 0, positive unconditional: 11, 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: 13, positive: 11, positive conditional: 0, positive unconditional: 11, 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: 13, positive: 11, positive conditional: 0, positive unconditional: 11, 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: 12, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 78, positive: 35, positive conditional: 35, positive unconditional: 0, negative: 30, negative conditional: 30, negative unconditional: 0, unknown: 13, unknown conditional: 13, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 95, Positive cache size: 69, Positive conditional cache size: 69, 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: 51.9ms, 35 PlacesBefore, 35 PlacesAfterwards, 29 TransitionsBefore, 29 TransitionsAfterwards, 300 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 123 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 28, positive: 20, positive conditional: 20, 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: 15, positive conditional: 7, positive unconditional: 8, negative: 3, negative conditional: 1, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 18, positive: 15, positive conditional: 7, positive unconditional: 8, negative: 3, negative conditional: 1, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 18, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 1, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 42, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 42, negative conditional: 22, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 28, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 18, unknown conditional: 18, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 113, Positive cache size: 84, Positive conditional cache size: 84, Positive unconditional cache size: 0, Negative cache size: 29, Negative conditional cache size: 29, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.7ms, 39 PlacesBefore, 39 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 302 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 146 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 31, positive: 21, positive conditional: 21, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11, positive: 11, positive conditional: 9, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 11, positive: 11, positive conditional: 9, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 11, positive: 11, positive conditional: 0, positive unconditional: 11, 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: 31, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 11, unknown conditional: 11, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 124, Positive cache size: 95, Positive conditional cache size: 95, Positive unconditional cache size: 0, Negative cache size: 29, Negative conditional cache size: 29, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.2ms, 41 PlacesBefore, 41 PlacesAfterwards, 33 TransitionsBefore, 33 TransitionsAfterwards, 322 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 135 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 42, positive: 34, positive conditional: 34, 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: 9, positive: 9, positive conditional: 3, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9, positive: 9, positive conditional: 3, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 9, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 42, positive: 25, positive conditional: 25, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 9, unknown conditional: 9, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 133, Positive cache size: 104, Positive conditional cache size: 104, Positive unconditional cache size: 0, Negative cache size: 29, Negative conditional cache size: 29, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.2ms, 44 PlacesBefore, 44 PlacesAfterwards, 33 TransitionsBefore, 33 TransitionsAfterwards, 322 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 165 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 48, positive: 38, positive conditional: 38, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 3, 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: 3, positive: 3, positive conditional: 3, 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: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 48, positive: 35, positive conditional: 35, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 136, Positive cache size: 107, Positive conditional cache size: 107, Positive unconditional cache size: 0, Negative cache size: 29, Negative conditional cache size: 29, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 635.7ms, 46 PlacesBefore, 46 PlacesAfterwards, 36 TransitionsBefore, 36 TransitionsAfterwards, 350 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 461 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 105, positive: 79, positive conditional: 79, positive unconditional: 0, negative: 26, negative conditional: 26, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 17, positive: 15, positive conditional: 11, positive unconditional: 4, 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: 17, positive: 15, positive conditional: 11, positive unconditional: 4, 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: 17, positive: 15, positive conditional: 0, positive unconditional: 15, 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: 35, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 105, positive: 64, positive conditional: 64, positive unconditional: 0, negative: 24, negative conditional: 24, negative unconditional: 0, unknown: 17, unknown conditional: 17, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 144, Positive cache size: 119, Positive conditional cache size: 119, Positive unconditional cache size: 0, Negative cache size: 25, Negative conditional cache size: 25, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.7ms, 50 PlacesBefore, 50 PlacesAfterwards, 41 TransitionsBefore, 41 TransitionsAfterwards, 396 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 333 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 90, positive: 72, positive conditional: 72, positive unconditional: 0, negative: 18, negative conditional: 18, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 19, positive: 19, positive conditional: 14, positive unconditional: 5, 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: 19, positive: 19, positive conditional: 14, positive unconditional: 5, 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: 19, positive: 19, positive conditional: 0, positive unconditional: 19, 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: 90, positive: 53, positive conditional: 53, positive unconditional: 0, negative: 18, negative conditional: 18, negative unconditional: 0, unknown: 19, unknown conditional: 19, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 163, Positive cache size: 138, Positive conditional cache size: 138, Positive unconditional cache size: 0, Negative cache size: 25, Negative conditional cache size: 25, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.5ms, 53 PlacesBefore, 53 PlacesAfterwards, 43 TransitionsBefore, 43 TransitionsAfterwards, 414 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 358 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 97, positive: 78, positive conditional: 78, positive unconditional: 0, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 5, 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: 5, positive: 5, positive conditional: 5, 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: 5, positive: 5, positive conditional: 0, positive unconditional: 5, 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: 97, positive: 73, positive conditional: 73, positive unconditional: 0, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 168, Positive cache size: 143, Positive conditional cache size: 143, Positive unconditional cache size: 0, Negative cache size: 25, Negative conditional cache size: 25, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 43.3ms, 57 PlacesBefore, 57 PlacesAfterwards, 50 TransitionsBefore, 50 TransitionsAfterwards, 502 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 206 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 45, positive: 36, positive conditional: 36, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 9, positive conditional: 6, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 10, positive: 9, positive conditional: 6, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 10, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 16, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 45, positive: 27, positive conditional: 27, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 10, unknown conditional: 10, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 178, Positive cache size: 152, Positive conditional cache size: 152, 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: 32.1ms, 62 PlacesBefore, 62 PlacesAfterwards, 50 TransitionsBefore, 50 TransitionsAfterwards, 500 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 204 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 42, positive: 34, positive conditional: 34, 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: 4, positive: 4, positive conditional: 3, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 3, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 42, positive: 30, positive conditional: 30, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 182, Positive cache size: 156, Positive conditional cache size: 156, 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: 25.6ms, 67 PlacesBefore, 67 PlacesAfterwards, 49 TransitionsBefore, 47 TransitionsAfterwards, 548 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 424 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 156, positive: 140, positive conditional: 140, positive unconditional: 0, negative: 16, negative conditional: 16, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 60, positive: 60, positive conditional: 58, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 60, positive: 60, positive conditional: 58, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 60, positive: 60, positive conditional: 0, positive unconditional: 60, 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: 156, positive: 80, positive conditional: 80, positive unconditional: 0, negative: 16, negative conditional: 16, negative unconditional: 0, unknown: 60, unknown conditional: 60, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 153, Positive cache size: 130, Positive conditional cache size: 130, 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: 19.5ms, 61 PlacesBefore, 61 PlacesAfterwards, 41 TransitionsBefore, 41 TransitionsAfterwards, 356 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 165 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 35, positive: 26, positive conditional: 26, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 35, positive: 23, positive conditional: 23, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 156, Positive cache size: 133, Positive conditional cache size: 133, 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: 4365.3ms, 67 PlacesBefore, 61 PlacesAfterwards, 40 TransitionsBefore, 35 TransitionsAfterwards, 234 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 5 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 8 TotalNumberOfCompositions, 331 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 177, positive: 155, positive conditional: 155, positive unconditional: 0, negative: 22, negative conditional: 22, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 55, positive: 53, positive conditional: 49, positive unconditional: 4, 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: 55, positive: 53, positive conditional: 49, positive unconditional: 4, 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: 55, positive: 53, positive conditional: 0, positive unconditional: 53, 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: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 177, positive: 102, positive conditional: 102, positive unconditional: 0, negative: 20, negative conditional: 20, negative unconditional: 0, unknown: 55, unknown conditional: 55, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 43, Positive cache size: 38, Positive conditional cache size: 38, Positive unconditional cache size: 0, Negative cache size: 5, Negative conditional cache size: 5, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 807.2ms, 56 PlacesBefore, 50 PlacesAfterwards, 25 TransitionsBefore, 24 TransitionsAfterwards, 76 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 16 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 16, positive: 16, positive conditional: 16, 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: 14, positive: 14, positive conditional: 14, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 14, positive: 14, positive conditional: 14, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 14, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 16, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 14, unknown conditional: 14, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 4, Positive cache size: 3, Positive conditional cache size: 3, Positive unconditional cache size: 0, Negative cache size: 1, Negative conditional cache size: 1, 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: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p2_EAX = 0; [L712] 0 _Bool main$tmp_guard0; [L713] 0 _Bool main$tmp_guard1; [L715] 0 int x = 0; [L717] 0 int y = 0; [L718] 0 _Bool y$flush_delayed; [L719] 0 int y$mem_tmp; [L720] 0 _Bool y$r_buff0_thd0; [L721] 0 _Bool y$r_buff0_thd1; [L722] 0 _Bool y$r_buff0_thd2; [L723] 0 _Bool y$r_buff0_thd3; [L724] 0 _Bool y$r_buff1_thd0; [L725] 0 _Bool y$r_buff1_thd1; [L726] 0 _Bool y$r_buff1_thd2; [L727] 0 _Bool y$r_buff1_thd3; [L728] 0 _Bool y$read_delayed; [L729] 0 int *y$read_delayed_var; [L730] 0 int y$w_buff0; [L731] 0 _Bool y$w_buff0_used; [L732] 0 int y$w_buff1; [L733] 0 _Bool y$w_buff1_used; [L735] 0 int z = 0; [L736] 0 _Bool weak$$choice0; [L737] 0 _Bool weak$$choice2; [L813] 0 pthread_t t1504; [L814] FCALL, FORK 0 pthread_create(&t1504, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L815] 0 pthread_t t1505; [L816] FCALL, FORK 0 pthread_create(&t1505, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L817] 0 pthread_t t1506; [L818] FCALL, FORK 0 pthread_create(&t1506, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L776] 3 y$w_buff1 = y$w_buff0 [L777] 3 y$w_buff0 = 2 [L778] 3 y$w_buff1_used = y$w_buff0_used [L779] 3 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 3 !(!expression) [L781] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L782] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L783] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L784] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L785] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L788] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L741] 1 z = 1 [L744] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L756] 2 x = 2 [L759] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L762] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L762] EXPR 2 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y [L762] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L762] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L763] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L763] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L764] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L764] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L765] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L765] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L766] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L766] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L791] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L791] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L792] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L792] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L793] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L793] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L794] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L794] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L795] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L795] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L749] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L751] 1 return 0; [L769] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L771] 2 return 0; [L798] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L800] 3 return 0; [L820] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L3] COND FALSE 0 !(!cond) [L824] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L824] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L824] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L824] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L825] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L825] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L826] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L826] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L827] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L827] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L828] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L828] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L831] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L832] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L833] 0 y$flush_delayed = weak$$choice2 [L834] 0 y$mem_tmp = y [L835] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L835] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L836] EXPR 0 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L836] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0) [L836] EXPR 0 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L836] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L837] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L837] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1) [L837] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L837] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L838] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L838] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used) [L838] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L838] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L839] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L839] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L839] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L839] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L840] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L840] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0) [L840] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L840] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L841] EXPR 0 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L841] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L841] EXPR 0 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L841] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L842] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 0) [L843] EXPR 0 y$flush_delayed ? y$mem_tmp : y [L843] 0 y = y$flush_delayed ? y$mem_tmp : y [L844] 0 y$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=54, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 95 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 3.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 19262.5ms, OverallIterations: 16, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1056.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7276.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 50 SDtfs, 28 SDslu, 21 SDs, 0 SdLazy, 335 SolverSat, 89 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 324.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 294.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=415occurred in iteration=11, InterpolantAutomatonStates: 70, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 46.6ms SsaConstructionTime, 345.5ms SatisfiabilityAnalysisTime, 765.3ms InterpolantComputationTime, 224 NumberOfCodeBlocks, 224 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 193 ConstructedInterpolants, 0 QuantifiedInterpolants, 1219 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 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...