/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedVariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix045_power.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 04:46:09,460 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 04:46:09,463 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 04:46:09,500 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 04:46:09,501 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 04:46:09,504 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 04:46:09,506 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 04:46:09,511 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 04:46:09,514 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 04:46:09,518 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 04:46:09,519 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 04:46:09,520 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 04:46:09,521 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 04:46:09,522 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 04:46:09,524 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 04:46:09,525 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 04:46:09,527 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 04:46:09,528 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 04:46:09,531 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 04:46:09,539 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 04:46:09,541 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 04:46:09,542 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 04:46:09,543 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 04:46:09,545 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 04:46:09,550 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-25 04:46:09,554 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 04:46:09,555 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 04:46:09,556 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 04:46:09,557 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 04:46:09,558 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 04:46:09,558 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 04:46:09,558 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 04:46:09,559 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 04:46:09,559 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 04:46:09,560 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 04:46:09,560 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 04:46:09,561 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedVariableLbe.epf [2021-03-25 04:46:09,595 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 04:46:09,596 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 04:46:09,599 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 04:46:09,599 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 04:46:09,599 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 04:46:09,600 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 04:46:09,600 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 04:46:09,600 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 04:46:09,600 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 04:46:09,600 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 04:46:09,601 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 04:46:09,601 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 04:46:09,602 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 04:46:09,602 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 04:46:09,602 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 04:46:09,602 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 04:46:09,602 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 04:46:09,602 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 04:46:09,603 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 04:46:09,603 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 04:46:09,603 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 04:46:09,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 04:46:09,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 04:46:09,604 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 04:46:09,604 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 04:46:09,604 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 04:46:09,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 04:46:09,604 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-25 04:46:09,605 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 04:46:09,605 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 04:46:09,605 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 04:46:09,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 04:46:09,960 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 04:46:09,962 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 04:46:09,963 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 04:46:09,964 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 04:46:09,965 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix045_power.opt.i [2021-03-25 04:46:10,021 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2c7b22b9/d6b2c31e753c406a801212f9ce2f6caa/FLAG9872daaae [2021-03-25 04:46:10,542 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 04:46:10,543 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix045_power.opt.i [2021-03-25 04:46:10,567 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2c7b22b9/d6b2c31e753c406a801212f9ce2f6caa/FLAG9872daaae [2021-03-25 04:46:11,047 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2c7b22b9/d6b2c31e753c406a801212f9ce2f6caa [2021-03-25 04:46:11,049 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 04:46:11,050 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 04:46:11,051 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 04:46:11,051 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 04:46:11,058 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 04:46:11,058 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 04:46:11" (1/1) ... [2021-03-25 04:46:11,060 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d53317 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:46:11, skipping insertion in model container [2021-03-25 04:46:11,060 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 04:46:11" (1/1) ... [2021-03-25 04:46:11,066 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 04:46:11,116 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 04:46:11,261 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/mix045_power.opt.i[950,963] [2021-03-25 04:46:11,389 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 04:46:11,396 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 04:46:11,405 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/mix045_power.opt.i[950,963] [2021-03-25 04:46:11,475 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 04:46:11,535 INFO L208 MainTranslator]: Completed translation [2021-03-25 04:46:11,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:46:11 WrapperNode [2021-03-25 04:46:11,536 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 04:46:11,537 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 04:46:11,537 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 04:46:11,537 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 04:46:11,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:46:11" (1/1) ... [2021-03-25 04:46:11,560 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:46:11" (1/1) ... [2021-03-25 04:46:11,591 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 04:46:11,592 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 04:46:11,592 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 04:46:11,592 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 04:46:11,602 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:46:11" (1/1) ... [2021-03-25 04:46:11,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:46:11" (1/1) ... [2021-03-25 04:46:11,615 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:46:11" (1/1) ... [2021-03-25 04:46:11,616 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:46:11" (1/1) ... [2021-03-25 04:46:11,634 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:46:11" (1/1) ... [2021-03-25 04:46:11,638 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:46:11" (1/1) ... [2021-03-25 04:46:11,640 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:46:11" (1/1) ... [2021-03-25 04:46:11,644 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 04:46:11,660 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 04:46:11,660 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 04:46:11,660 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 04:46:11,667 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:46:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 04:46:11,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 04:46:11,714 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 04:46:11,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 04:46:11,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 04:46:11,715 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-25 04:46:11,715 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-25 04:46:11,715 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-25 04:46:11,715 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-25 04:46:11,715 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-25 04:46:11,715 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-25 04:46:11,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 04:46:11,716 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 04:46:11,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 04:46:11,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 04:46:11,717 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 04:46:13,159 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 04:46:13,160 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-25 04:46:13,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 04:46:13 BoogieIcfgContainer [2021-03-25 04:46:13,162 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 04:46:13,164 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 04:46:13,164 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 04:46:13,166 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 04:46:13,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 04:46:11" (1/3) ... [2021-03-25 04:46:13,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c18303d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 04:46:13, skipping insertion in model container [2021-03-25 04:46:13,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:46:11" (2/3) ... [2021-03-25 04:46:13,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c18303d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 04:46:13, skipping insertion in model container [2021-03-25 04:46:13,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 04:46:13" (3/3) ... [2021-03-25 04:46:13,169 INFO L111 eAbstractionObserver]: Analyzing ICFG mix045_power.opt.i [2021-03-25 04:46:13,174 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 04:46:13,179 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-25 04:46:13,179 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 04:46:13,220 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,220 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,220 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,220 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,221 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,221 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,221 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,221 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,222 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,222 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,222 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,222 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,222 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,222 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,223 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,223 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,223 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,223 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,223 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,223 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,223 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,223 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,223 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,224 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,225 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,225 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,225 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,225 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,225 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,225 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,226 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,226 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,226 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,227 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,227 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,227 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,227 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,228 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,228 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,229 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,229 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,229 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,229 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,229 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,229 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,229 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,230 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,230 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,230 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,230 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,231 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,234 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,234 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,234 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,235 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,235 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,235 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,235 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,235 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,235 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,235 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,236 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,236 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,236 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,236 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,236 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,236 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,237 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,237 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,237 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,237 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,237 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,239 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,239 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,239 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,240 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,242 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,242 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,242 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,242 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,243 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,243 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,243 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,243 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,243 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,243 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,245 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,245 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,245 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,245 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,245 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,246 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,246 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,246 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,246 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,246 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,246 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,247 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:46:13,249 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 04:46:13,268 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-03-25 04:46:13,299 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 04:46:13,299 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 04:46:13,299 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 04:46:13,300 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 04:46:13,300 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 04:46:13,300 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 04:46:13,300 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 04:46:13,300 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 04:46:13,310 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 108 places, 100 transitions, 215 flow [2021-03-25 04:46:13,354 INFO L129 PetriNetUnfolder]: 2/97 cut-off events. [2021-03-25 04:46:13,354 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:46:13,367 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 97 events. 2/97 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. 0/93 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2021-03-25 04:46:13,367 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 100 transitions, 215 flow [2021-03-25 04:46:13,371 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 97 transitions, 203 flow [2021-03-25 04:46:13,372 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:13,385 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 105 places, 97 transitions, 203 flow [2021-03-25 04:46:13,389 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 105 places, 97 transitions, 203 flow [2021-03-25 04:46:13,394 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 105 places, 97 transitions, 203 flow [2021-03-25 04:46:13,426 INFO L129 PetriNetUnfolder]: 2/97 cut-off events. [2021-03-25 04:46:13,426 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:46:13,428 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 97 events. 2/97 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2021-03-25 04:46:13,432 INFO L142 LiptonReduction]: Number of co-enabled transitions 1738 [2021-03-25 04:46:14,216 WARN L205 SmtUtils]: Spent 761.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 188 [2021-03-25 04:46:14,566 WARN L205 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-03-25 04:46:15,885 WARN L205 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 312 DAG size of output: 268 [2021-03-25 04:46:16,452 WARN L205 SmtUtils]: Spent 560.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-03-25 04:46:17,263 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-25 04:46:17,658 WARN L205 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 81 [2021-03-25 04:46:18,490 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-03-25 04:46:18,808 WARN L205 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-03-25 04:46:19,846 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 267 DAG size of output: 266 [2021-03-25 04:46:20,392 WARN L205 SmtUtils]: Spent 543.00 ms on a formula simplification that was a NOOP. DAG size: 266 [2021-03-25 04:46:20,549 INFO L154 LiptonReduction]: Checked pairs total: 2726 [2021-03-25 04:46:20,549 INFO L156 LiptonReduction]: Total number of compositions: 67 [2021-03-25 04:46:20,551 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7180 [2021-03-25 04:46:20,558 INFO L129 PetriNetUnfolder]: 0/24 cut-off events. [2021-03-25 04:46:20,559 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:46:20,559 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:20,559 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:46:20,560 INFO L428 AbstractCegarLoop]: === Iteration 1 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:20,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:20,564 INFO L82 PathProgramCache]: Analyzing trace with hash 429548733, now seen corresponding path program 1 times [2021-03-25 04:46:20,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:20,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70134301] [2021-03-25 04:46:20,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:20,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:46:20,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:20,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:46:20,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:20,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:20,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:46:20,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70134301] [2021-03-25 04:46:20,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:46:20,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:46:20,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674625533] [2021-03-25 04:46:20,764 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:46:20,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:46:20,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:46:20,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:46:20,776 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 167 [2021-03-25 04:46:20,778 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 40 transitions, 89 flow. Second operand has 3 states, 3 states have (on average 144.66666666666666) internal successors, (434), 3 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:20,779 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:46:20,779 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 167 [2021-03-25 04:46:20,780 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:46:20,847 INFO L129 PetriNetUnfolder]: 23/102 cut-off events. [2021-03-25 04:46:20,848 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:46:20,848 INFO L84 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 102 events. 23/102 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 372 event pairs, 3 based on Foata normal form. 5/99 useless extension candidates. Maximal degree in co-relation 139. Up to 37 conditions per place. [2021-03-25 04:46:20,849 INFO L132 encePairwiseOnDemand]: 163/167 looper letters, 7 selfloop transitions, 2 changer transitions 4/41 dead transitions. [2021-03-25 04:46:20,850 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 41 transitions, 113 flow [2021-03-25 04:46:20,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:46:20,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:46:20,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 446 transitions. [2021-03-25 04:46:20,862 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8902195608782435 [2021-03-25 04:46:20,863 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 446 transitions. [2021-03-25 04:46:20,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 446 transitions. [2021-03-25 04:46:20,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:46:20,866 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 446 transitions. [2021-03-25 04:46:20,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:20,876 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:20,876 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:20,878 INFO L185 Difference]: Start difference. First operand has 49 places, 40 transitions, 89 flow. Second operand 3 states and 446 transitions. [2021-03-25 04:46:20,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 41 transitions, 113 flow [2021-03-25 04:46:20,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 41 transitions, 110 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-25 04:46:20,882 INFO L241 Difference]: Finished difference. Result has 46 places, 34 transitions, 78 flow [2021-03-25 04:46:20,884 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=46, PETRI_TRANSITIONS=34} [2021-03-25 04:46:20,885 INFO L343 CegarLoopForPetriNet]: 49 programPoint places, -3 predicate places. [2021-03-25 04:46:20,885 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:20,885 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 34 transitions, 78 flow [2021-03-25 04:46:20,886 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 34 transitions, 78 flow [2021-03-25 04:46:20,886 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 43 places, 34 transitions, 78 flow [2021-03-25 04:46:20,893 INFO L129 PetriNetUnfolder]: 0/34 cut-off events. [2021-03-25 04:46:20,894 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:46:20,894 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 34 events. 0/34 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 28 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-25 04:46:20,895 INFO L142 LiptonReduction]: Number of co-enabled transitions 254 [2021-03-25 04:46:21,308 WARN L205 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-03-25 04:46:21,610 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-03-25 04:46:22,197 WARN L205 SmtUtils]: Spent 584.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2021-03-25 04:46:22,772 WARN L205 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2021-03-25 04:46:23,388 INFO L154 LiptonReduction]: Checked pairs total: 1170 [2021-03-25 04:46:23,388 INFO L156 LiptonReduction]: Total number of compositions: 10 [2021-03-25 04:46:23,389 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2504 [2021-03-25 04:46:23,390 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 24 transitions, 58 flow [2021-03-25 04:46:23,390 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 144.66666666666666) internal successors, (434), 3 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:23,390 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:23,390 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:46:23,390 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 04:46:23,391 INFO L428 AbstractCegarLoop]: === Iteration 2 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:23,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:23,391 INFO L82 PathProgramCache]: Analyzing trace with hash 1980972199, now seen corresponding path program 1 times [2021-03-25 04:46:23,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:23,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789149527] [2021-03-25 04:46:23,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:23,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:46:23,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:23,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:46:23,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:23,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:23,576 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-25 04:46:23,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 04:46:23,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:46:23,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789149527] [2021-03-25 04:46:23,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:46:23,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:46:23,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945503627] [2021-03-25 04:46:23,583 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:46:23,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:46:23,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:46:23,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:46:23,592 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 177 [2021-03-25 04:46:23,592 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 24 transitions, 58 flow. Second operand has 4 states, 4 states have (on average 153.75) internal successors, (615), 4 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:23,593 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:46:23,598 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 177 [2021-03-25 04:46:23,598 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:46:23,628 INFO L129 PetriNetUnfolder]: 3/36 cut-off events. [2021-03-25 04:46:23,628 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:46:23,629 INFO L84 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 36 events. 3/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 75 event pairs, 1 based on Foata normal form. 1/34 useless extension candidates. Maximal degree in co-relation 46. Up to 10 conditions per place. [2021-03-25 04:46:23,629 INFO L132 encePairwiseOnDemand]: 173/177 looper letters, 3 selfloop transitions, 3 changer transitions 0/26 dead transitions. [2021-03-25 04:46:23,629 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 26 transitions, 74 flow [2021-03-25 04:46:23,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:46:23,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:46:23,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 466 transitions. [2021-03-25 04:46:23,633 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8775894538606404 [2021-03-25 04:46:23,634 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 466 transitions. [2021-03-25 04:46:23,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 466 transitions. [2021-03-25 04:46:23,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:46:23,634 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 466 transitions. [2021-03-25 04:46:23,635 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:23,638 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 177.0) internal successors, (708), 4 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:23,638 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 177.0) internal successors, (708), 4 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:23,639 INFO L185 Difference]: Start difference. First operand has 33 places, 24 transitions, 58 flow. Second operand 3 states and 466 transitions. [2021-03-25 04:46:23,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 26 transitions, 74 flow [2021-03-25 04:46:23,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 26 transitions, 70 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 04:46:23,640 INFO L241 Difference]: Finished difference. Result has 34 places, 26 transitions, 73 flow [2021-03-25 04:46:23,640 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=73, PETRI_PLACES=34, PETRI_TRANSITIONS=26} [2021-03-25 04:46:23,640 INFO L343 CegarLoopForPetriNet]: 49 programPoint places, -15 predicate places. [2021-03-25 04:46:23,640 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:23,641 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 26 transitions, 73 flow [2021-03-25 04:46:23,641 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 26 transitions, 73 flow [2021-03-25 04:46:23,641 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 26 transitions, 73 flow [2021-03-25 04:46:23,650 INFO L129 PetriNetUnfolder]: 3/32 cut-off events. [2021-03-25 04:46:23,651 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-25 04:46:23,651 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 32 events. 3/32 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 63 event pairs, 1 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 43. Up to 10 conditions per place. [2021-03-25 04:46:23,652 INFO L142 LiptonReduction]: Number of co-enabled transitions 264 [2021-03-25 04:46:24,160 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 116 [2021-03-25 04:46:24,284 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2021-03-25 04:46:24,562 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 116 [2021-03-25 04:46:24,684 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2021-03-25 04:46:24,688 INFO L154 LiptonReduction]: Checked pairs total: 741 [2021-03-25 04:46:24,688 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 04:46:24,688 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1048 [2021-03-25 04:46:24,689 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 24 transitions, 69 flow [2021-03-25 04:46:24,689 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 153.75) internal successors, (615), 4 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:24,689 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:24,689 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:46:24,689 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 04:46:24,690 INFO L428 AbstractCegarLoop]: === Iteration 3 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:24,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:24,690 INFO L82 PathProgramCache]: Analyzing trace with hash 158995249, now seen corresponding path program 1 times [2021-03-25 04:46:24,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:24,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049945773] [2021-03-25 04:46:24,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:24,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:46:24,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:24,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:24,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:46:24,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049945773] [2021-03-25 04:46:24,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:46:24,780 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-25 04:46:24,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109697856] [2021-03-25 04:46:24,780 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:46:24,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:46:24,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:46:24,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:46:24,782 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 179 [2021-03-25 04:46:24,783 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 24 transitions, 69 flow. Second operand has 3 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:24,783 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:46:24,783 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 179 [2021-03-25 04:46:24,783 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:46:24,795 INFO L129 PetriNetUnfolder]: 3/34 cut-off events. [2021-03-25 04:46:24,795 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-03-25 04:46:24,795 INFO L84 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 34 events. 3/34 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 77 event pairs, 1 based on Foata normal form. 1/32 useless extension candidates. Maximal degree in co-relation 51. Up to 10 conditions per place. [2021-03-25 04:46:24,796 INFO L132 encePairwiseOnDemand]: 176/179 looper letters, 1 selfloop transitions, 2 changer transitions 0/24 dead transitions. [2021-03-25 04:46:24,796 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 24 transitions, 75 flow [2021-03-25 04:46:24,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:46:24,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:46:24,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 478 transitions. [2021-03-25 04:46:24,798 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8901303538175046 [2021-03-25 04:46:24,798 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 478 transitions. [2021-03-25 04:46:24,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 478 transitions. [2021-03-25 04:46:24,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:46:24,798 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 478 transitions. [2021-03-25 04:46:24,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 159.33333333333334) internal successors, (478), 3 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:24,803 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:24,804 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:24,804 INFO L185 Difference]: Start difference. First operand has 32 places, 24 transitions, 69 flow. Second operand 3 states and 478 transitions. [2021-03-25 04:46:24,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 24 transitions, 75 flow [2021-03-25 04:46:24,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 24 transitions, 72 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 04:46:24,805 INFO L241 Difference]: Finished difference. Result has 34 places, 24 transitions, 74 flow [2021-03-25 04:46:24,805 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=34, PETRI_TRANSITIONS=24} [2021-03-25 04:46:24,805 INFO L343 CegarLoopForPetriNet]: 49 programPoint places, -15 predicate places. [2021-03-25 04:46:24,805 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:24,805 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 24 transitions, 74 flow [2021-03-25 04:46:24,806 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 24 transitions, 74 flow [2021-03-25 04:46:24,806 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 24 transitions, 74 flow [2021-03-25 04:46:24,810 INFO L129 PetriNetUnfolder]: 3/30 cut-off events. [2021-03-25 04:46:24,810 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-25 04:46:24,810 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 30 events. 3/30 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 63 event pairs, 1 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 46. Up to 10 conditions per place. [2021-03-25 04:46:24,811 INFO L142 LiptonReduction]: Number of co-enabled transitions 260 [2021-03-25 04:46:24,921 INFO L154 LiptonReduction]: Checked pairs total: 430 [2021-03-25 04:46:24,921 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 04:46:24,921 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 116 [2021-03-25 04:46:24,922 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 23 transitions, 72 flow [2021-03-25 04:46:24,922 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:24,923 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:24,923 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:46:24,923 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 04:46:24,923 INFO L428 AbstractCegarLoop]: === Iteration 4 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:24,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:24,923 INFO L82 PathProgramCache]: Analyzing trace with hash -887160534, now seen corresponding path program 1 times [2021-03-25 04:46:24,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:24,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537923061] [2021-03-25 04:46:24,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:24,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:46:24,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:24,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 04:46:24,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:25,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 04:46:25,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:25,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:46:25,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:46:25,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537923061] [2021-03-25 04:46:25,017 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:46:25,017 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:46:25,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282499109] [2021-03-25 04:46:25,017 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:46:25,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:46:25,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:46:25,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:46:25,022 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 180 [2021-03-25 04:46:25,023 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 23 transitions, 72 flow. Second operand has 5 states, 5 states have (on average 138.8) internal successors, (694), 5 states have internal predecessors, (694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:25,023 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:46:25,023 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 180 [2021-03-25 04:46:25,023 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:46:25,095 INFO L129 PetriNetUnfolder]: 47/123 cut-off events. [2021-03-25 04:46:25,095 INFO L130 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2021-03-25 04:46:25,097 INFO L84 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 123 events. 47/123 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 534 event pairs, 17 based on Foata normal form. 1/112 useless extension candidates. Maximal degree in co-relation 257. Up to 77 conditions per place. [2021-03-25 04:46:25,100 INFO L132 encePairwiseOnDemand]: 175/180 looper letters, 8 selfloop transitions, 5 changer transitions 0/29 dead transitions. [2021-03-25 04:46:25,100 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 29 transitions, 113 flow [2021-03-25 04:46:25,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:46:25,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:46:25,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 566 transitions. [2021-03-25 04:46:25,103 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7861111111111111 [2021-03-25 04:46:25,103 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 566 transitions. [2021-03-25 04:46:25,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 566 transitions. [2021-03-25 04:46:25,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:46:25,104 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 566 transitions. [2021-03-25 04:46:25,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 141.5) internal successors, (566), 4 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:25,106 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 180.0) internal successors, (900), 5 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:25,106 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 180.0) internal successors, (900), 5 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:25,106 INFO L185 Difference]: Start difference. First operand has 33 places, 23 transitions, 72 flow. Second operand 4 states and 566 transitions. [2021-03-25 04:46:25,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 29 transitions, 113 flow [2021-03-25 04:46:25,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 29 transitions, 107 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 04:46:25,108 INFO L241 Difference]: Finished difference. Result has 36 places, 27 transitions, 101 flow [2021-03-25 04:46:25,108 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=101, PETRI_PLACES=36, PETRI_TRANSITIONS=27} [2021-03-25 04:46:25,108 INFO L343 CegarLoopForPetriNet]: 49 programPoint places, -13 predicate places. [2021-03-25 04:46:25,108 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:25,108 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 27 transitions, 101 flow [2021-03-25 04:46:25,108 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 27 transitions, 101 flow [2021-03-25 04:46:25,109 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 27 transitions, 101 flow [2021-03-25 04:46:25,114 INFO L129 PetriNetUnfolder]: 7/43 cut-off events. [2021-03-25 04:46:25,114 INFO L130 PetriNetUnfolder]: For 25/28 co-relation queries the response was YES. [2021-03-25 04:46:25,115 INFO L84 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 43 events. 7/43 cut-off events. For 25/28 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 120 event pairs, 3 based on Foata normal form. 1/39 useless extension candidates. Maximal degree in co-relation 87. Up to 15 conditions per place. [2021-03-25 04:46:25,115 INFO L142 LiptonReduction]: Number of co-enabled transitions 278 [2021-03-25 04:46:25,117 INFO L154 LiptonReduction]: Checked pairs total: 162 [2021-03-25 04:46:25,117 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:46:25,117 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-03-25 04:46:25,118 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 27 transitions, 101 flow [2021-03-25 04:46:25,118 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 138.8) internal successors, (694), 5 states have internal predecessors, (694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:25,118 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:25,118 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:46:25,119 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 04:46:25,119 INFO L428 AbstractCegarLoop]: === Iteration 5 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:25,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:25,119 INFO L82 PathProgramCache]: Analyzing trace with hash -1314281336, now seen corresponding path program 1 times [2021-03-25 04:46:25,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:25,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447001409] [2021-03-25 04:46:25,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:25,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:46:25,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:25,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:25,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:25,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:25,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:25,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 04:46:25,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:25,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:46:25,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:46:25,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447001409] [2021-03-25 04:46:25,212 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:46:25,212 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:46:25,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135600069] [2021-03-25 04:46:25,212 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:46:25,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:46:25,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:46:25,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:46:25,214 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 180 [2021-03-25 04:46:25,214 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 27 transitions, 101 flow. Second operand has 5 states, 5 states have (on average 146.0) internal successors, (730), 5 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:25,214 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:46:25,214 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 180 [2021-03-25 04:46:25,214 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:46:25,280 INFO L129 PetriNetUnfolder]: 63/156 cut-off events. [2021-03-25 04:46:25,280 INFO L130 PetriNetUnfolder]: For 93/93 co-relation queries the response was YES. [2021-03-25 04:46:25,281 INFO L84 FinitePrefix]: Finished finitePrefix Result has 407 conditions, 156 events. 63/156 cut-off events. For 93/93 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 701 event pairs, 13 based on Foata normal form. 2/149 useless extension candidates. Maximal degree in co-relation 393. Up to 91 conditions per place. [2021-03-25 04:46:25,282 INFO L132 encePairwiseOnDemand]: 173/180 looper letters, 8 selfloop transitions, 11 changer transitions 0/35 dead transitions. [2021-03-25 04:46:25,282 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 35 transitions, 168 flow [2021-03-25 04:46:25,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:46:25,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:46:25,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 741 transitions. [2021-03-25 04:46:25,285 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8233333333333334 [2021-03-25 04:46:25,285 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 741 transitions. [2021-03-25 04:46:25,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 741 transitions. [2021-03-25 04:46:25,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:46:25,285 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 741 transitions. [2021-03-25 04:46:25,287 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 148.2) internal successors, (741), 5 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:25,289 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 180.0) internal successors, (1080), 6 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:25,289 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 180.0) internal successors, (1080), 6 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:25,289 INFO L185 Difference]: Start difference. First operand has 36 places, 27 transitions, 101 flow. Second operand 5 states and 741 transitions. [2021-03-25 04:46:25,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 35 transitions, 168 flow [2021-03-25 04:46:25,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 35 transitions, 168 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-25 04:46:25,291 INFO L241 Difference]: Finished difference. Result has 42 places, 34 transitions, 173 flow [2021-03-25 04:46:25,291 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=173, PETRI_PLACES=42, PETRI_TRANSITIONS=34} [2021-03-25 04:46:25,292 INFO L343 CegarLoopForPetriNet]: 49 programPoint places, -7 predicate places. [2021-03-25 04:46:25,292 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:25,292 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 34 transitions, 173 flow [2021-03-25 04:46:25,292 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 34 transitions, 173 flow [2021-03-25 04:46:25,292 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 34 transitions, 173 flow [2021-03-25 04:46:25,303 INFO L129 PetriNetUnfolder]: 28/88 cut-off events. [2021-03-25 04:46:25,303 INFO L130 PetriNetUnfolder]: For 114/122 co-relation queries the response was YES. [2021-03-25 04:46:25,304 INFO L84 FinitePrefix]: Finished finitePrefix Result has 260 conditions, 88 events. 28/88 cut-off events. For 114/122 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 346 event pairs, 6 based on Foata normal form. 3/81 useless extension candidates. Maximal degree in co-relation 244. Up to 32 conditions per place. [2021-03-25 04:46:25,305 INFO L142 LiptonReduction]: Number of co-enabled transitions 344 [2021-03-25 04:46:25,308 INFO L154 LiptonReduction]: Checked pairs total: 139 [2021-03-25 04:46:25,308 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:46:25,308 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-03-25 04:46:25,308 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 34 transitions, 173 flow [2021-03-25 04:46:25,309 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 146.0) internal successors, (730), 5 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:25,309 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:25,309 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:46:25,309 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 04:46:25,309 INFO L428 AbstractCegarLoop]: === Iteration 6 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:25,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:25,310 INFO L82 PathProgramCache]: Analyzing trace with hash -1314188336, now seen corresponding path program 2 times [2021-03-25 04:46:25,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:25,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124128852] [2021-03-25 04:46:25,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:25,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:46:25,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:25,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:25,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:25,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:25,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:25,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 04:46:25,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:25,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:46:25,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:46:25,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124128852] [2021-03-25 04:46:25,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:46:25,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:46:25,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977245161] [2021-03-25 04:46:25,368 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:46:25,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:46:25,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:46:25,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:46:25,369 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 180 [2021-03-25 04:46:25,370 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 34 transitions, 173 flow. Second operand has 5 states, 5 states have (on average 146.0) internal successors, (730), 5 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:25,370 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:46:25,370 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 180 [2021-03-25 04:46:25,370 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:46:25,422 INFO L129 PetriNetUnfolder]: 54/147 cut-off events. [2021-03-25 04:46:25,422 INFO L130 PetriNetUnfolder]: For 223/226 co-relation queries the response was YES. [2021-03-25 04:46:25,423 INFO L84 FinitePrefix]: Finished finitePrefix Result has 516 conditions, 147 events. 54/147 cut-off events. For 223/226 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 680 event pairs, 13 based on Foata normal form. 10/148 useless extension candidates. Maximal degree in co-relation 498. Up to 75 conditions per place. [2021-03-25 04:46:25,424 INFO L132 encePairwiseOnDemand]: 175/180 looper letters, 11 selfloop transitions, 10 changer transitions 0/37 dead transitions. [2021-03-25 04:46:25,424 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 37 transitions, 225 flow [2021-03-25 04:46:25,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:46:25,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:46:25,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 592 transitions. [2021-03-25 04:46:25,426 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8222222222222222 [2021-03-25 04:46:25,426 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 592 transitions. [2021-03-25 04:46:25,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 592 transitions. [2021-03-25 04:46:25,427 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:46:25,427 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 592 transitions. [2021-03-25 04:46:25,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:25,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 180.0) internal successors, (900), 5 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:25,429 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 180.0) internal successors, (900), 5 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:25,430 INFO L185 Difference]: Start difference. First operand has 42 places, 34 transitions, 173 flow. Second operand 4 states and 592 transitions. [2021-03-25 04:46:25,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 37 transitions, 225 flow [2021-03-25 04:46:25,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 37 transitions, 218 flow, removed 3 selfloop flow, removed 1 redundant places. [2021-03-25 04:46:25,433 INFO L241 Difference]: Finished difference. Result has 45 places, 35 transitions, 200 flow [2021-03-25 04:46:25,433 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=200, PETRI_PLACES=45, PETRI_TRANSITIONS=35} [2021-03-25 04:46:25,433 INFO L343 CegarLoopForPetriNet]: 49 programPoint places, -4 predicate places. [2021-03-25 04:46:25,433 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:25,433 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 35 transitions, 200 flow [2021-03-25 04:46:25,433 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 35 transitions, 200 flow [2021-03-25 04:46:25,434 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 35 transitions, 200 flow [2021-03-25 04:46:25,444 INFO L129 PetriNetUnfolder]: 26/87 cut-off events. [2021-03-25 04:46:25,445 INFO L130 PetriNetUnfolder]: For 221/229 co-relation queries the response was YES. [2021-03-25 04:46:25,445 INFO L84 FinitePrefix]: Finished finitePrefix Result has 301 conditions, 87 events. 26/87 cut-off events. For 221/229 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 341 event pairs, 9 based on Foata normal form. 3/82 useless extension candidates. Maximal degree in co-relation 283. Up to 32 conditions per place. [2021-03-25 04:46:25,446 INFO L142 LiptonReduction]: Number of co-enabled transitions 348 [2021-03-25 04:46:25,449 INFO L154 LiptonReduction]: Checked pairs total: 195 [2021-03-25 04:46:25,449 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:46:25,449 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-03-25 04:46:25,450 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 35 transitions, 200 flow [2021-03-25 04:46:25,450 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 146.0) internal successors, (730), 5 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:25,450 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:25,450 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:46:25,451 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 04:46:25,451 INFO L428 AbstractCegarLoop]: === Iteration 7 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:25,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:25,451 INFO L82 PathProgramCache]: Analyzing trace with hash -1733423679, now seen corresponding path program 1 times [2021-03-25 04:46:25,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:25,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406416079] [2021-03-25 04:46:25,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:25,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:46:25,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:25,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:46:25,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:25,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:46:25,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:25,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 04:46:25,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:25,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 04:46:25,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:25,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:46:25,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:46:25,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406416079] [2021-03-25 04:46:25,591 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:46:25,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:46:25,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47929562] [2021-03-25 04:46:25,592 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:46:25,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:46:25,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:46:25,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:46:25,593 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 180 [2021-03-25 04:46:25,594 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 35 transitions, 200 flow. Second operand has 6 states, 6 states have (on average 141.0) internal successors, (846), 6 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:25,594 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:46:25,594 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 180 [2021-03-25 04:46:25,594 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:46:25,697 INFO L129 PetriNetUnfolder]: 56/175 cut-off events. [2021-03-25 04:46:25,697 INFO L130 PetriNetUnfolder]: For 393/396 co-relation queries the response was YES. [2021-03-25 04:46:25,698 INFO L84 FinitePrefix]: Finished finitePrefix Result has 705 conditions, 175 events. 56/175 cut-off events. For 393/396 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 909 event pairs, 7 based on Foata normal form. 4/170 useless extension candidates. Maximal degree in co-relation 685. Up to 75 conditions per place. [2021-03-25 04:46:25,699 INFO L132 encePairwiseOnDemand]: 174/180 looper letters, 12 selfloop transitions, 13 changer transitions 0/41 dead transitions. [2021-03-25 04:46:25,699 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 41 transitions, 295 flow [2021-03-25 04:46:25,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:46:25,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:46:25,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 716 transitions. [2021-03-25 04:46:25,702 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7955555555555556 [2021-03-25 04:46:25,702 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 716 transitions. [2021-03-25 04:46:25,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 716 transitions. [2021-03-25 04:46:25,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:46:25,702 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 716 transitions. [2021-03-25 04:46:25,704 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 143.2) internal successors, (716), 5 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:25,705 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 180.0) internal successors, (1080), 6 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:25,706 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 180.0) internal successors, (1080), 6 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:25,706 INFO L185 Difference]: Start difference. First operand has 45 places, 35 transitions, 200 flow. Second operand 5 states and 716 transitions. [2021-03-25 04:46:25,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 41 transitions, 295 flow [2021-03-25 04:46:25,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 41 transitions, 275 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-03-25 04:46:25,710 INFO L241 Difference]: Finished difference. Result has 48 places, 40 transitions, 271 flow [2021-03-25 04:46:25,710 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=271, PETRI_PLACES=48, PETRI_TRANSITIONS=40} [2021-03-25 04:46:25,711 INFO L343 CegarLoopForPetriNet]: 49 programPoint places, -1 predicate places. [2021-03-25 04:46:25,711 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:25,711 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 40 transitions, 271 flow [2021-03-25 04:46:25,711 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 40 transitions, 271 flow [2021-03-25 04:46:25,711 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 40 transitions, 271 flow [2021-03-25 04:46:25,726 INFO L129 PetriNetUnfolder]: 30/106 cut-off events. [2021-03-25 04:46:25,726 INFO L130 PetriNetUnfolder]: For 359/377 co-relation queries the response was YES. [2021-03-25 04:46:25,726 INFO L84 FinitePrefix]: Finished finitePrefix Result has 404 conditions, 106 events. 30/106 cut-off events. For 359/377 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 459 event pairs, 7 based on Foata normal form. 4/100 useless extension candidates. Maximal degree in co-relation 385. Up to 39 conditions per place. [2021-03-25 04:46:25,728 INFO L142 LiptonReduction]: Number of co-enabled transitions 398 [2021-03-25 04:46:25,732 INFO L154 LiptonReduction]: Checked pairs total: 272 [2021-03-25 04:46:25,732 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:46:25,732 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 21 [2021-03-25 04:46:25,737 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 40 transitions, 271 flow [2021-03-25 04:46:25,737 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 141.0) internal successors, (846), 6 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:25,737 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:25,737 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:46:25,737 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 04:46:25,738 INFO L428 AbstractCegarLoop]: === Iteration 8 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:25,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:25,738 INFO L82 PathProgramCache]: Analyzing trace with hash -1673249889, now seen corresponding path program 2 times [2021-03-25 04:46:25,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:25,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103587044] [2021-03-25 04:46:25,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:25,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:46:25,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:25,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:46:25,818 INFO L142 QuantifierPusher]: treesize reduction 11, result has 47.6 percent of original size [2021-03-25 04:46:25,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:46:25,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:25,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 04:46:25,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:25,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 04:46:25,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:25,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 04:46:25,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:46:25,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103587044] [2021-03-25 04:46:25,890 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:46:25,890 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:46:25,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940626853] [2021-03-25 04:46:25,891 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:46:25,891 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:46:25,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:46:25,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:46:25,892 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 180 [2021-03-25 04:46:25,893 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 271 flow. Second operand has 6 states, 6 states have (on average 140.0) internal successors, (840), 6 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:25,893 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:46:25,893 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 180 [2021-03-25 04:46:25,893 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:46:26,002 INFO L129 PetriNetUnfolder]: 52/177 cut-off events. [2021-03-25 04:46:26,003 INFO L130 PetriNetUnfolder]: For 583/589 co-relation queries the response was YES. [2021-03-25 04:46:26,004 INFO L84 FinitePrefix]: Finished finitePrefix Result has 772 conditions, 177 events. 52/177 cut-off events. For 583/589 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 959 event pairs, 1 based on Foata normal form. 11/180 useless extension candidates. Maximal degree in co-relation 751. Up to 73 conditions per place. [2021-03-25 04:46:26,005 INFO L132 encePairwiseOnDemand]: 173/180 looper letters, 18 selfloop transitions, 13 changer transitions 0/47 dead transitions. [2021-03-25 04:46:26,005 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 47 transitions, 374 flow [2021-03-25 04:46:26,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 04:46:26,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 04:46:26,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 851 transitions. [2021-03-25 04:46:26,008 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.787962962962963 [2021-03-25 04:46:26,008 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 851 transitions. [2021-03-25 04:46:26,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 851 transitions. [2021-03-25 04:46:26,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:46:26,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 851 transitions. [2021-03-25 04:46:26,010 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 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) [2021-03-25 04:46:26,012 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:26,012 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:26,012 INFO L185 Difference]: Start difference. First operand has 48 places, 40 transitions, 271 flow. Second operand 6 states and 851 transitions. [2021-03-25 04:46:26,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 47 transitions, 374 flow [2021-03-25 04:46:26,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 47 transitions, 359 flow, removed 7 selfloop flow, removed 1 redundant places. [2021-03-25 04:46:26,017 INFO L241 Difference]: Finished difference. Result has 54 places, 43 transitions, 320 flow [2021-03-25 04:46:26,017 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=243, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=320, PETRI_PLACES=54, PETRI_TRANSITIONS=43} [2021-03-25 04:46:26,017 INFO L343 CegarLoopForPetriNet]: 49 programPoint places, 5 predicate places. [2021-03-25 04:46:26,017 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:26,017 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 43 transitions, 320 flow [2021-03-25 04:46:26,018 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 43 transitions, 320 flow [2021-03-25 04:46:26,018 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 43 transitions, 320 flow [2021-03-25 04:46:26,065 INFO L129 PetriNetUnfolder]: 24/103 cut-off events. [2021-03-25 04:46:26,065 INFO L130 PetriNetUnfolder]: For 402/415 co-relation queries the response was YES. [2021-03-25 04:46:26,066 INFO L84 FinitePrefix]: Finished finitePrefix Result has 414 conditions, 103 events. 24/103 cut-off events. For 402/415 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 470 event pairs, 5 based on Foata normal form. 6/102 useless extension candidates. Maximal degree in co-relation 392. Up to 38 conditions per place. [2021-03-25 04:46:26,067 INFO L142 LiptonReduction]: Number of co-enabled transitions 418 [2021-03-25 04:46:26,073 INFO L154 LiptonReduction]: Checked pairs total: 469 [2021-03-25 04:46:26,073 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:46:26,073 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 56 [2021-03-25 04:46:26,074 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 43 transitions, 320 flow [2021-03-25 04:46:26,075 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 140.0) internal successors, (840), 6 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:26,075 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:26,075 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:46:26,075 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 04:46:26,075 INFO L428 AbstractCegarLoop]: === Iteration 9 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:26,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:26,075 INFO L82 PathProgramCache]: Analyzing trace with hash 1927168297, now seen corresponding path program 3 times [2021-03-25 04:46:26,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:26,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615335600] [2021-03-25 04:46:26,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:26,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:46:26,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:26,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 04:46:26,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:26,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 04:46:26,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:26,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 04:46:26,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:26,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 04:46:26,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:26,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 04:46:26,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:46:26,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615335600] [2021-03-25 04:46:26,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:46:26,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 04:46:26,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172583453] [2021-03-25 04:46:26,239 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 04:46:26,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:46:26,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 04:46:26,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-03-25 04:46:26,240 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 180 [2021-03-25 04:46:26,241 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 43 transitions, 320 flow. Second operand has 7 states, 7 states have (on average 137.85714285714286) internal successors, (965), 7 states have internal predecessors, (965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:26,241 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:46:26,241 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 180 [2021-03-25 04:46:26,242 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:46:26,356 INFO L129 PetriNetUnfolder]: 54/191 cut-off events. [2021-03-25 04:46:26,356 INFO L130 PetriNetUnfolder]: For 708/712 co-relation queries the response was YES. [2021-03-25 04:46:26,357 INFO L84 FinitePrefix]: Finished finitePrefix Result has 886 conditions, 191 events. 54/191 cut-off events. For 708/712 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1083 event pairs, 1 based on Foata normal form. 6/189 useless extension candidates. Maximal degree in co-relation 862. Up to 89 conditions per place. [2021-03-25 04:46:26,359 INFO L132 encePairwiseOnDemand]: 174/180 looper letters, 18 selfloop transitions, 19 changer transitions 0/53 dead transitions. [2021-03-25 04:46:26,359 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 53 transitions, 474 flow [2021-03-25 04:46:26,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:46:26,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:46:26,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 702 transitions. [2021-03-25 04:46:26,362 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.78 [2021-03-25 04:46:26,362 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 702 transitions. [2021-03-25 04:46:26,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 702 transitions. [2021-03-25 04:46:26,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:46:26,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 702 transitions. [2021-03-25 04:46:26,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 140.4) internal successors, (702), 5 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:26,368 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 180.0) internal successors, (1080), 6 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:26,368 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 180.0) internal successors, (1080), 6 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:26,368 INFO L185 Difference]: Start difference. First operand has 54 places, 43 transitions, 320 flow. Second operand 5 states and 702 transitions. [2021-03-25 04:46:26,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 53 transitions, 474 flow [2021-03-25 04:46:26,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 53 transitions, 465 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-25 04:46:26,373 INFO L241 Difference]: Finished difference. Result has 57 places, 49 transitions, 427 flow [2021-03-25 04:46:26,373 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=427, PETRI_PLACES=57, PETRI_TRANSITIONS=49} [2021-03-25 04:46:26,374 INFO L343 CegarLoopForPetriNet]: 49 programPoint places, 8 predicate places. [2021-03-25 04:46:26,374 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:26,374 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 49 transitions, 427 flow [2021-03-25 04:46:26,374 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 57 places, 49 transitions, 427 flow [2021-03-25 04:46:26,374 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 57 places, 49 transitions, 427 flow [2021-03-25 04:46:26,397 INFO L129 PetriNetUnfolder]: 47/186 cut-off events. [2021-03-25 04:46:26,397 INFO L130 PetriNetUnfolder]: For 729/737 co-relation queries the response was YES. [2021-03-25 04:46:26,398 INFO L84 FinitePrefix]: Finished finitePrefix Result has 847 conditions, 186 events. 47/186 cut-off events. For 729/737 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1107 event pairs, 7 based on Foata normal form. 3/181 useless extension candidates. Maximal degree in co-relation 824. Up to 74 conditions per place. [2021-03-25 04:46:26,400 INFO L142 LiptonReduction]: Number of co-enabled transitions 466 [2021-03-25 04:46:26,596 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2021-03-25 04:46:26,996 WARN L205 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 87 [2021-03-25 04:46:27,118 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-03-25 04:46:27,137 INFO L154 LiptonReduction]: Checked pairs total: 1292 [2021-03-25 04:46:27,137 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 04:46:27,137 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 763 [2021-03-25 04:46:27,137 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 49 transitions, 434 flow [2021-03-25 04:46:27,138 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 137.85714285714286) internal successors, (965), 7 states have internal predecessors, (965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:27,138 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:27,138 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:46:27,138 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-25 04:46:27,138 INFO L428 AbstractCegarLoop]: === Iteration 10 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:27,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:27,139 INFO L82 PathProgramCache]: Analyzing trace with hash -2138960149, now seen corresponding path program 4 times [2021-03-25 04:46:27,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:27,139 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386941304] [2021-03-25 04:46:27,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:27,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:46:27,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:27,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 04:46:27,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:27,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 04:46:27,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:27,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 04:46:27,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:27,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 04:46:27,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:27,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:46:27,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:46:27,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386941304] [2021-03-25 04:46:27,231 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:46:27,231 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 04:46:27,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755678934] [2021-03-25 04:46:27,231 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 04:46:27,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:46:27,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 04:46:27,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-25 04:46:27,233 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 181 [2021-03-25 04:46:27,233 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 49 transitions, 434 flow. Second operand has 7 states, 7 states have (on average 129.85714285714286) internal successors, (909), 7 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:27,234 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:46:27,234 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 181 [2021-03-25 04:46:27,234 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:46:27,337 INFO L129 PetriNetUnfolder]: 53/192 cut-off events. [2021-03-25 04:46:27,337 INFO L130 PetriNetUnfolder]: For 996/1016 co-relation queries the response was YES. [2021-03-25 04:46:27,338 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1028 conditions, 192 events. 53/192 cut-off events. For 996/1016 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1079 event pairs, 2 based on Foata normal form. 7/190 useless extension candidates. Maximal degree in co-relation 1003. Up to 100 conditions per place. [2021-03-25 04:46:27,340 INFO L132 encePairwiseOnDemand]: 174/181 looper letters, 26 selfloop transitions, 15 changer transitions 0/57 dead transitions. [2021-03-25 04:46:27,340 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 57 transitions, 584 flow [2021-03-25 04:46:27,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:46:27,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:46:27,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 662 transitions. [2021-03-25 04:46:27,342 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7314917127071823 [2021-03-25 04:46:27,343 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 662 transitions. [2021-03-25 04:46:27,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 662 transitions. [2021-03-25 04:46:27,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:46:27,343 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 662 transitions. [2021-03-25 04:46:27,345 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 132.4) internal successors, (662), 5 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:27,346 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:27,346 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:27,346 INFO L185 Difference]: Start difference. First operand has 57 places, 49 transitions, 434 flow. Second operand 5 states and 662 transitions. [2021-03-25 04:46:27,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 57 transitions, 584 flow [2021-03-25 04:46:27,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 57 transitions, 568 flow, removed 8 selfloop flow, removed 0 redundant places. [2021-03-25 04:46:27,351 INFO L241 Difference]: Finished difference. Result has 62 places, 53 transitions, 508 flow [2021-03-25 04:46:27,352 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=508, PETRI_PLACES=62, PETRI_TRANSITIONS=53} [2021-03-25 04:46:27,352 INFO L343 CegarLoopForPetriNet]: 49 programPoint places, 13 predicate places. [2021-03-25 04:46:27,353 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:27,353 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions, 508 flow [2021-03-25 04:46:27,353 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 53 transitions, 508 flow [2021-03-25 04:46:27,353 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions, 508 flow [2021-03-25 04:46:27,378 INFO L129 PetriNetUnfolder]: 49/188 cut-off events. [2021-03-25 04:46:27,378 INFO L130 PetriNetUnfolder]: For 949/972 co-relation queries the response was YES. [2021-03-25 04:46:27,379 INFO L84 FinitePrefix]: Finished finitePrefix Result has 924 conditions, 188 events. 49/188 cut-off events. For 949/972 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1067 event pairs, 1 based on Foata normal form. 5/183 useless extension candidates. Maximal degree in co-relation 898. Up to 72 conditions per place. [2021-03-25 04:46:27,382 INFO L142 LiptonReduction]: Number of co-enabled transitions 490 [2021-03-25 04:46:27,390 INFO L154 LiptonReduction]: Checked pairs total: 851 [2021-03-25 04:46:27,390 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:46:27,390 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 37 [2021-03-25 04:46:27,390 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 53 transitions, 508 flow [2021-03-25 04:46:27,391 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 129.85714285714286) internal successors, (909), 7 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:27,391 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:27,391 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:46:27,391 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-25 04:46:27,391 INFO L428 AbstractCegarLoop]: === Iteration 11 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:27,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:27,392 INFO L82 PathProgramCache]: Analyzing trace with hash -1861423807, now seen corresponding path program 1 times [2021-03-25 04:46:27,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:27,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076597673] [2021-03-25 04:46:27,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:27,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:46:27,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:27,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:27,431 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 04:46:27,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 04:46:27,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:27,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:46:27,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:46:27,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076597673] [2021-03-25 04:46:27,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:46:27,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:46:27,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493312652] [2021-03-25 04:46:27,437 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:46:27,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:46:27,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:46:27,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:46:27,439 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 181 [2021-03-25 04:46:27,439 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 53 transitions, 508 flow. Second operand has 4 states, 4 states have (on average 150.75) internal successors, (603), 4 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:27,439 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:46:27,439 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 181 [2021-03-25 04:46:27,439 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:46:27,546 INFO L129 PetriNetUnfolder]: 192/456 cut-off events. [2021-03-25 04:46:27,546 INFO L130 PetriNetUnfolder]: For 1496/1725 co-relation queries the response was YES. [2021-03-25 04:46:27,548 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1662 conditions, 456 events. 192/456 cut-off events. For 1496/1725 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 2960 event pairs, 60 based on Foata normal form. 101/478 useless extension candidates. Maximal degree in co-relation 1634. Up to 268 conditions per place. [2021-03-25 04:46:27,550 INFO L132 encePairwiseOnDemand]: 175/181 looper letters, 14 selfloop transitions, 8 changer transitions 0/64 dead transitions. [2021-03-25 04:46:27,551 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 64 transitions, 574 flow [2021-03-25 04:46:27,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:46:27,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:46:27,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 770 transitions. [2021-03-25 04:46:27,553 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.850828729281768 [2021-03-25 04:46:27,553 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 770 transitions. [2021-03-25 04:46:27,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 770 transitions. [2021-03-25 04:46:27,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:46:27,554 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 770 transitions. [2021-03-25 04:46:27,556 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 154.0) internal successors, (770), 5 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:27,557 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:27,558 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:27,558 INFO L185 Difference]: Start difference. First operand has 62 places, 53 transitions, 508 flow. Second operand 5 states and 770 transitions. [2021-03-25 04:46:27,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 64 transitions, 574 flow [2021-03-25 04:46:27,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 64 transitions, 542 flow, removed 6 selfloop flow, removed 4 redundant places. [2021-03-25 04:46:27,564 INFO L241 Difference]: Finished difference. Result has 65 places, 60 transitions, 552 flow [2021-03-25 04:46:27,564 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=476, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=552, PETRI_PLACES=65, PETRI_TRANSITIONS=60} [2021-03-25 04:46:27,564 INFO L343 CegarLoopForPetriNet]: 49 programPoint places, 16 predicate places. [2021-03-25 04:46:27,564 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:27,564 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 60 transitions, 552 flow [2021-03-25 04:46:27,565 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 60 transitions, 552 flow [2021-03-25 04:46:27,565 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 60 transitions, 552 flow [2021-03-25 04:46:27,611 INFO L129 PetriNetUnfolder]: 143/378 cut-off events. [2021-03-25 04:46:27,611 INFO L130 PetriNetUnfolder]: For 1499/1659 co-relation queries the response was YES. [2021-03-25 04:46:27,613 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1633 conditions, 378 events. 143/378 cut-off events. For 1499/1659 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 2411 event pairs, 33 based on Foata normal form. 21/361 useless extension candidates. Maximal degree in co-relation 1606. Up to 196 conditions per place. [2021-03-25 04:46:27,617 INFO L142 LiptonReduction]: Number of co-enabled transitions 582 [2021-03-25 04:46:27,627 INFO L154 LiptonReduction]: Checked pairs total: 372 [2021-03-25 04:46:27,627 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:46:27,627 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 63 [2021-03-25 04:46:27,627 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 60 transitions, 552 flow [2021-03-25 04:46:27,628 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 150.75) internal successors, (603), 4 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:27,628 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:27,628 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:46:27,628 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-25 04:46:27,628 INFO L428 AbstractCegarLoop]: === Iteration 12 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:27,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:27,629 INFO L82 PathProgramCache]: Analyzing trace with hash -1267705574, now seen corresponding path program 1 times [2021-03-25 04:46:27,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:27,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260646597] [2021-03-25 04:46:27,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:27,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:46:27,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:27,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:27,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:27,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:27,711 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 04:46:27,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 04:46:27,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:27,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:46:27,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:46:27,718 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260646597] [2021-03-25 04:46:27,718 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:46:27,718 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:46:27,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562301290] [2021-03-25 04:46:27,719 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:46:27,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:46:27,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:46:27,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:46:27,721 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 181 [2021-03-25 04:46:27,721 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 60 transitions, 552 flow. Second operand has 5 states, 5 states have (on average 150.8) internal successors, (754), 5 states have internal predecessors, (754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:27,721 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:46:27,722 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 181 [2021-03-25 04:46:27,722 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:46:27,813 INFO L129 PetriNetUnfolder]: 116/311 cut-off events. [2021-03-25 04:46:27,814 INFO L130 PetriNetUnfolder]: For 1644/2753 co-relation queries the response was YES. [2021-03-25 04:46:27,815 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1334 conditions, 311 events. 116/311 cut-off events. For 1644/2753 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 1850 event pairs, 5 based on Foata normal form. 194/465 useless extension candidates. Maximal degree in co-relation 1305. Up to 183 conditions per place. [2021-03-25 04:46:27,817 INFO L132 encePairwiseOnDemand]: 175/181 looper letters, 10 selfloop transitions, 15 changer transitions 5/64 dead transitions. [2021-03-25 04:46:27,817 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 64 transitions, 580 flow [2021-03-25 04:46:27,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 04:46:27,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 04:46:27,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1078 transitions. [2021-03-25 04:46:27,820 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.850828729281768 [2021-03-25 04:46:27,820 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1078 transitions. [2021-03-25 04:46:27,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1078 transitions. [2021-03-25 04:46:27,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:46:27,821 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1078 transitions. [2021-03-25 04:46:27,823 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 154.0) internal successors, (1078), 7 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:27,825 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 181.0) internal successors, (1448), 8 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:27,826 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 181.0) internal successors, (1448), 8 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:27,826 INFO L185 Difference]: Start difference. First operand has 65 places, 60 transitions, 552 flow. Second operand 7 states and 1078 transitions. [2021-03-25 04:46:27,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 64 transitions, 580 flow [2021-03-25 04:46:27,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 64 transitions, 562 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-25 04:46:27,832 INFO L241 Difference]: Finished difference. Result has 71 places, 57 transitions, 527 flow [2021-03-25 04:46:27,832 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=442, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=527, PETRI_PLACES=71, PETRI_TRANSITIONS=57} [2021-03-25 04:46:27,833 INFO L343 CegarLoopForPetriNet]: 49 programPoint places, 22 predicate places. [2021-03-25 04:46:27,833 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:27,833 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 57 transitions, 527 flow [2021-03-25 04:46:27,833 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 57 transitions, 527 flow [2021-03-25 04:46:27,834 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 57 transitions, 527 flow [2021-03-25 04:46:27,856 INFO L129 PetriNetUnfolder]: 65/227 cut-off events. [2021-03-25 04:46:27,857 INFO L130 PetriNetUnfolder]: For 1216/1499 co-relation queries the response was YES. [2021-03-25 04:46:27,858 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1107 conditions, 227 events. 65/227 cut-off events. For 1216/1499 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1380 event pairs, 4 based on Foata normal form. 15/224 useless extension candidates. Maximal degree in co-relation 1077. Up to 129 conditions per place. [2021-03-25 04:46:27,860 INFO L142 LiptonReduction]: Number of co-enabled transitions 580 [2021-03-25 04:46:27,865 INFO L154 LiptonReduction]: Checked pairs total: 296 [2021-03-25 04:46:27,865 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:46:27,865 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 32 [2021-03-25 04:46:27,867 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 57 transitions, 527 flow [2021-03-25 04:46:27,867 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 150.8) internal successors, (754), 5 states have internal predecessors, (754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:27,867 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:27,867 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:46:27,867 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-25 04:46:27,867 INFO L428 AbstractCegarLoop]: === Iteration 13 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:27,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:27,868 INFO L82 PathProgramCache]: Analyzing trace with hash 1760153514, now seen corresponding path program 1 times [2021-03-25 04:46:27,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:27,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104041984] [2021-03-25 04:46:27,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:27,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:46:27,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:27,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:46:27,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:27,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:27,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:46:27,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104041984] [2021-03-25 04:46:27,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:46:27,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:46:27,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007089810] [2021-03-25 04:46:27,901 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:46:27,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:46:27,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:46:27,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:46:27,903 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 181 [2021-03-25 04:46:27,903 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 57 transitions, 527 flow. Second operand has 3 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:27,903 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:46:27,903 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 181 [2021-03-25 04:46:27,903 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:46:27,944 INFO L129 PetriNetUnfolder]: 103/320 cut-off events. [2021-03-25 04:46:27,944 INFO L130 PetriNetUnfolder]: For 1866/2287 co-relation queries the response was YES. [2021-03-25 04:46:27,946 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1580 conditions, 320 events. 103/320 cut-off events. For 1866/2287 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 2117 event pairs, 8 based on Foata normal form. 21/309 useless extension candidates. Maximal degree in co-relation 1548. Up to 202 conditions per place. [2021-03-25 04:46:27,947 INFO L132 encePairwiseOnDemand]: 178/181 looper letters, 3 selfloop transitions, 3 changer transitions 0/57 dead transitions. [2021-03-25 04:46:27,947 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 57 transitions, 539 flow [2021-03-25 04:46:27,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:46:27,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:46:27,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 483 transitions. [2021-03-25 04:46:27,949 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8895027624309392 [2021-03-25 04:46:27,949 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 483 transitions. [2021-03-25 04:46:27,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 483 transitions. [2021-03-25 04:46:27,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:46:27,949 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 483 transitions. [2021-03-25 04:46:27,950 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 161.0) internal successors, (483), 3 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:27,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:27,951 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:27,951 INFO L185 Difference]: Start difference. First operand has 71 places, 57 transitions, 527 flow. Second operand 3 states and 483 transitions. [2021-03-25 04:46:27,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 57 transitions, 539 flow [2021-03-25 04:46:27,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 57 transitions, 479 flow, removed 17 selfloop flow, removed 4 redundant places. [2021-03-25 04:46:27,957 INFO L241 Difference]: Finished difference. Result has 70 places, 57 transitions, 478 flow [2021-03-25 04:46:27,958 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=467, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=478, PETRI_PLACES=70, PETRI_TRANSITIONS=57} [2021-03-25 04:46:27,958 INFO L343 CegarLoopForPetriNet]: 49 programPoint places, 21 predicate places. [2021-03-25 04:46:27,958 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:27,958 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 57 transitions, 478 flow [2021-03-25 04:46:27,958 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 57 transitions, 478 flow [2021-03-25 04:46:27,959 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 70 places, 57 transitions, 478 flow [2021-03-25 04:46:27,988 INFO L129 PetriNetUnfolder]: 103/320 cut-off events. [2021-03-25 04:46:27,988 INFO L130 PetriNetUnfolder]: For 1311/1391 co-relation queries the response was YES. [2021-03-25 04:46:27,990 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1314 conditions, 320 events. 103/320 cut-off events. For 1311/1391 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 2172 event pairs, 8 based on Foata normal form. 15/302 useless extension candidates. Maximal degree in co-relation 1284. Up to 101 conditions per place. [2021-03-25 04:46:27,992 INFO L142 LiptonReduction]: Number of co-enabled transitions 580 [2021-03-25 04:46:27,998 INFO L154 LiptonReduction]: Checked pairs total: 340 [2021-03-25 04:46:27,998 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:46:27,998 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 40 [2021-03-25 04:46:27,998 INFO L480 AbstractCegarLoop]: Abstraction has has 70 places, 57 transitions, 478 flow [2021-03-25 04:46:27,999 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:27,999 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:27,999 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:46:27,999 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-25 04:46:27,999 INFO L428 AbstractCegarLoop]: === Iteration 14 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:28,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:28,000 INFO L82 PathProgramCache]: Analyzing trace with hash 1495415099, now seen corresponding path program 1 times [2021-03-25 04:46:28,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:28,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005300005] [2021-03-25 04:46:28,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:28,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:46:28,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:28,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:28,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:28,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:28,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:28,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:28,069 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 04:46:28,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 04:46:28,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:28,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:46:28,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:46:28,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005300005] [2021-03-25 04:46:28,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:46:28,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 04:46:28,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275363618] [2021-03-25 04:46:28,077 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:46:28,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:46:28,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:46:28,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:46:28,079 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 181 [2021-03-25 04:46:28,079 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 57 transitions, 478 flow. Second operand has 6 states, 6 states have (on average 150.83333333333334) internal successors, (905), 6 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:28,080 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:46:28,080 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 181 [2021-03-25 04:46:28,080 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:46:28,184 INFO L129 PetriNetUnfolder]: 141/354 cut-off events. [2021-03-25 04:46:28,184 INFO L130 PetriNetUnfolder]: For 1924/3151 co-relation queries the response was YES. [2021-03-25 04:46:28,186 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1463 conditions, 354 events. 141/354 cut-off events. For 1924/3151 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 2227 event pairs, 0 based on Foata normal form. 238/531 useless extension candidates. Maximal degree in co-relation 1431. Up to 110 conditions per place. [2021-03-25 04:46:28,187 INFO L132 encePairwiseOnDemand]: 175/181 looper letters, 5 selfloop transitions, 19 changer transitions 7/58 dead transitions. [2021-03-25 04:46:28,187 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 58 transitions, 503 flow [2021-03-25 04:46:28,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 04:46:28,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 04:46:28,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1380 transitions. [2021-03-25 04:46:28,191 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8471454880294659 [2021-03-25 04:46:28,191 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1380 transitions. [2021-03-25 04:46:28,191 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1380 transitions. [2021-03-25 04:46:28,192 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:46:28,192 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1380 transitions. [2021-03-25 04:46:28,195 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 153.33333333333334) internal successors, (1380), 9 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:28,197 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 181.0) internal successors, (1810), 10 states have internal predecessors, (1810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:28,198 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 181.0) internal successors, (1810), 10 states have internal predecessors, (1810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:28,198 INFO L185 Difference]: Start difference. First operand has 70 places, 57 transitions, 478 flow. Second operand 9 states and 1380 transitions. [2021-03-25 04:46:28,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 58 transitions, 503 flow [2021-03-25 04:46:28,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 58 transitions, 457 flow, removed 9 selfloop flow, removed 5 redundant places. [2021-03-25 04:46:28,203 INFO L241 Difference]: Finished difference. Result has 76 places, 49 transitions, 400 flow [2021-03-25 04:46:28,203 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=363, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=400, PETRI_PLACES=76, PETRI_TRANSITIONS=49} [2021-03-25 04:46:28,203 INFO L343 CegarLoopForPetriNet]: 49 programPoint places, 27 predicate places. [2021-03-25 04:46:28,203 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:28,203 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 49 transitions, 400 flow [2021-03-25 04:46:28,203 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 49 transitions, 400 flow [2021-03-25 04:46:28,204 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 75 places, 49 transitions, 400 flow [2021-03-25 04:46:28,216 INFO L129 PetriNetUnfolder]: 35/128 cut-off events. [2021-03-25 04:46:28,216 INFO L130 PetriNetUnfolder]: For 500/564 co-relation queries the response was YES. [2021-03-25 04:46:28,217 INFO L84 FinitePrefix]: Finished finitePrefix Result has 555 conditions, 128 events. 35/128 cut-off events. For 500/564 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 648 event pairs, 0 based on Foata normal form. 3/120 useless extension candidates. Maximal degree in co-relation 524. Up to 45 conditions per place. [2021-03-25 04:46:28,218 INFO L142 LiptonReduction]: Number of co-enabled transitions 426 [2021-03-25 04:46:28,513 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-03-25 04:46:28,623 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-03-25 04:46:28,991 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-03-25 04:46:29,147 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-03-25 04:46:29,800 WARN L205 SmtUtils]: Spent 644.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 194 [2021-03-25 04:46:30,022 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2021-03-25 04:46:31,258 WARN L205 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 349 DAG size of output: 270 [2021-03-25 04:46:31,729 WARN L205 SmtUtils]: Spent 467.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2021-03-25 04:46:31,736 INFO L154 LiptonReduction]: Checked pairs total: 493 [2021-03-25 04:46:31,737 INFO L156 LiptonReduction]: Total number of compositions: 10 [2021-03-25 04:46:31,737 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3534 [2021-03-25 04:46:31,737 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 42 transitions, 372 flow [2021-03-25 04:46:31,737 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 150.83333333333334) internal successors, (905), 6 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:31,738 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:31,738 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:46:31,738 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-25 04:46:31,738 INFO L428 AbstractCegarLoop]: === Iteration 15 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:31,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:31,738 INFO L82 PathProgramCache]: Analyzing trace with hash 862793895, now seen corresponding path program 1 times [2021-03-25 04:46:31,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:31,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263620039] [2021-03-25 04:46:31,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:31,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:46:31,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:31,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:46:31,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:31,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:31,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:46:31,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:46:31,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:46:31,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263620039] [2021-03-25 04:46:31,781 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:46:31,781 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:46:31,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643711163] [2021-03-25 04:46:31,781 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:46:31,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:46:31,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:46:31,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:46:31,782 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 188 [2021-03-25 04:46:31,783 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 42 transitions, 372 flow. Second operand has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 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) [2021-03-25 04:46:31,783 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:46:31,783 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 188 [2021-03-25 04:46:31,783 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:46:31,811 INFO L129 PetriNetUnfolder]: 29/97 cut-off events. [2021-03-25 04:46:31,811 INFO L130 PetriNetUnfolder]: For 853/884 co-relation queries the response was YES. [2021-03-25 04:46:31,811 INFO L84 FinitePrefix]: Finished finitePrefix Result has 453 conditions, 97 events. 29/97 cut-off events. For 853/884 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 376 event pairs, 0 based on Foata normal form. 6/99 useless extension candidates. Maximal degree in co-relation 420. Up to 45 conditions per place. [2021-03-25 04:46:31,812 INFO L132 encePairwiseOnDemand]: 185/188 looper letters, 3 selfloop transitions, 1 changer transitions 12/37 dead transitions. [2021-03-25 04:46:31,812 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 37 transitions, 327 flow [2021-03-25 04:46:31,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:46:31,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:46:31,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 662 transitions. [2021-03-25 04:46:31,814 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8803191489361702 [2021-03-25 04:46:31,815 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 662 transitions. [2021-03-25 04:46:31,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 662 transitions. [2021-03-25 04:46:31,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:46:31,815 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 662 transitions. [2021-03-25 04:46:31,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 165.5) internal successors, (662), 4 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:31,818 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 188.0) internal successors, (940), 5 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:31,818 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 188.0) internal successors, (940), 5 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:46:31,818 INFO L185 Difference]: Start difference. First operand has 71 places, 42 transitions, 372 flow. Second operand 4 states and 662 transitions. [2021-03-25 04:46:31,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 37 transitions, 327 flow [2021-03-25 04:46:31,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 37 transitions, 241 flow, removed 19 selfloop flow, removed 16 redundant places. [2021-03-25 04:46:31,821 INFO L241 Difference]: Finished difference. Result has 53 places, 25 transitions, 143 flow [2021-03-25 04:46:31,821 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=143, PETRI_PLACES=53, PETRI_TRANSITIONS=25} [2021-03-25 04:46:31,821 INFO L343 CegarLoopForPetriNet]: 49 programPoint places, 4 predicate places. [2021-03-25 04:46:31,821 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:46:31,821 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 25 transitions, 143 flow [2021-03-25 04:46:31,822 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 25 transitions, 143 flow [2021-03-25 04:46:31,822 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 25 transitions, 143 flow [2021-03-25 04:46:31,827 INFO L129 PetriNetUnfolder]: 8/38 cut-off events. [2021-03-25 04:46:31,827 INFO L130 PetriNetUnfolder]: For 88/92 co-relation queries the response was YES. [2021-03-25 04:46:31,827 INFO L84 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 38 events. 8/38 cut-off events. For 88/92 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 69 event pairs, 0 based on Foata normal form. 3/40 useless extension candidates. Maximal degree in co-relation 109. Up to 12 conditions per place. [2021-03-25 04:46:31,827 INFO L142 LiptonReduction]: Number of co-enabled transitions 76 [2021-03-25 04:46:32,170 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-03-25 04:46:32,591 WARN L205 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 92 [2021-03-25 04:46:32,722 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-03-25 04:46:32,724 INFO L154 LiptonReduction]: Checked pairs total: 26 [2021-03-25 04:46:32,724 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 04:46:32,724 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 903 [2021-03-25 04:46:32,725 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 24 transitions, 147 flow [2021-03-25 04:46:32,725 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 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) [2021-03-25 04:46:32,725 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:46:32,725 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:46:32,725 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-25 04:46:32,725 INFO L428 AbstractCegarLoop]: === Iteration 16 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:46:32,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:46:32,726 INFO L82 PathProgramCache]: Analyzing trace with hash -489193931, now seen corresponding path program 1 times [2021-03-25 04:46:32,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:46:32,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166937261] [2021-03-25 04:46:32,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:46:32,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 04:46:32,749 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 04:46:32,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 04:46:32,770 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 04:46:32,794 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-25 04:46:32,795 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-25 04:46:32,795 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-25 04:46:32,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 04:46:32 BasicIcfg [2021-03-25 04:46:32,857 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 04:46:32,858 INFO L168 Benchmark]: Toolchain (without parser) took 21807.76 ms. Allocated memory was 255.9 MB in the beginning and 641.7 MB in the end (delta: 385.9 MB). Free memory was 236.3 MB in the beginning and 270.1 MB in the end (delta: -33.9 MB). Peak memory consumption was 351.3 MB. Max. memory is 16.0 GB. [2021-03-25 04:46:32,858 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 04:46:32,858 INFO L168 Benchmark]: CACSL2BoogieTranslator took 485.16 ms. Allocated memory was 255.9 MB in the beginning and 354.4 MB in the end (delta: 98.6 MB). Free memory was 236.3 MB in the beginning and 313.4 MB in the end (delta: -77.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-03-25 04:46:32,859 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.41 ms. Allocated memory is still 354.4 MB. Free memory was 313.4 MB in the beginning and 310.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 04:46:32,859 INFO L168 Benchmark]: Boogie Preprocessor took 52.29 ms. Allocated memory is still 354.4 MB. Free memory was 310.7 MB in the beginning and 308.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 04:46:32,859 INFO L168 Benchmark]: RCFGBuilder took 1503.02 ms. Allocated memory is still 354.4 MB. Free memory was 308.6 MB in the beginning and 235.5 MB in the end (delta: 73.1 MB). Peak memory consumption was 78.1 MB. Max. memory is 16.0 GB. [2021-03-25 04:46:32,859 INFO L168 Benchmark]: TraceAbstraction took 19693.52 ms. Allocated memory was 354.4 MB in the beginning and 641.7 MB in the end (delta: 287.3 MB). Free memory was 234.5 MB in the beginning and 270.1 MB in the end (delta: -35.7 MB). Peak memory consumption was 251.6 MB. Max. memory is 16.0 GB. [2021-03-25 04:46:32,860 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 485.16 ms. Allocated memory was 255.9 MB in the beginning and 354.4 MB in the end (delta: 98.6 MB). Free memory was 236.3 MB in the beginning and 313.4 MB in the end (delta: -77.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 54.41 ms. Allocated memory is still 354.4 MB. Free memory was 313.4 MB in the beginning and 310.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 52.29 ms. Allocated memory is still 354.4 MB. Free memory was 310.7 MB in the beginning and 308.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1503.02 ms. Allocated memory is still 354.4 MB. Free memory was 308.6 MB in the beginning and 235.5 MB in the end (delta: 73.1 MB). Peak memory consumption was 78.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 19693.52 ms. Allocated memory was 354.4 MB in the beginning and 641.7 MB in the end (delta: 287.3 MB). Free memory was 234.5 MB in the beginning and 270.1 MB in the end (delta: -35.7 MB). Peak memory consumption was 251.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7160.5ms, 105 PlacesBefore, 49 PlacesAfterwards, 97 TransitionsBefore, 40 TransitionsAfterwards, 1738 CoEnabledTransitionPairs, 5 FixpointIterations, 26 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 67 TotalNumberOfCompositions, 2726 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1562, positive: 1488, positive conditional: 0, positive unconditional: 1488, negative: 74, negative conditional: 0, negative unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 890, positive: 867, positive conditional: 0, positive unconditional: 867, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 890, positive: 867, positive conditional: 0, positive unconditional: 867, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1562, positive: 621, positive conditional: 0, positive unconditional: 621, negative: 51, negative conditional: 0, negative unconditional: 51, unknown: 890, unknown conditional: 0, unknown unconditional: 890] , Statistics on independence cache: Total cache size (in pairs): 100, Positive cache size: 86, Positive conditional cache size: 0, Positive unconditional cache size: 86, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2502.7ms, 46 PlacesBefore, 33 PlacesAfterwards, 34 TransitionsBefore, 24 TransitionsAfterwards, 254 CoEnabledTransitionPairs, 4 FixpointIterations, 9 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 10 TotalNumberOfCompositions, 1170 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 342, positive: 255, positive conditional: 0, positive unconditional: 255, negative: 87, negative conditional: 0, negative unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 29, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 29, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 342, positive: 239, positive conditional: 0, positive unconditional: 239, negative: 74, negative conditional: 0, negative unconditional: 74, unknown: 29, unknown conditional: 0, unknown unconditional: 29] , Statistics on independence cache: Total cache size (in pairs): 111, Positive cache size: 88, Positive conditional cache size: 0, Positive unconditional cache size: 88, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1046.6ms, 34 PlacesBefore, 32 PlacesAfterwards, 26 TransitionsBefore, 24 TransitionsAfterwards, 264 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 741 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 247, positive: 193, positive conditional: 0, positive unconditional: 193, negative: 54, negative conditional: 0, negative unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 247, positive: 192, positive conditional: 0, positive unconditional: 192, negative: 54, negative conditional: 0, negative unconditional: 54, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 112, Positive cache size: 89, Positive conditional cache size: 0, Positive unconditional cache size: 89, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 115.6ms, 34 PlacesBefore, 33 PlacesAfterwards, 24 TransitionsBefore, 23 TransitionsAfterwards, 260 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 430 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 142, positive: 111, positive conditional: 0, positive unconditional: 111, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 142, positive: 108, positive conditional: 0, positive unconditional: 108, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 97, Positive cache size: 77, Positive conditional cache size: 0, Positive unconditional cache size: 77, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.5ms, 36 PlacesBefore, 36 PlacesAfterwards, 27 TransitionsBefore, 27 TransitionsAfterwards, 278 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 162 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 39, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 39, positive: 27, positive conditional: 0, positive unconditional: 27, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 98, Positive cache size: 78, Positive conditional cache size: 0, Positive unconditional cache size: 78, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.7ms, 42 PlacesBefore, 42 PlacesAfterwards, 34 TransitionsBefore, 34 TransitionsAfterwards, 344 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 139 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 29, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 29, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 99, Positive cache size: 79, Positive conditional cache size: 0, Positive unconditional cache size: 79, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.7ms, 45 PlacesBefore, 45 PlacesAfterwards, 35 TransitionsBefore, 35 TransitionsAfterwards, 348 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 195 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 44, positive: 32, positive conditional: 0, positive unconditional: 32, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 44, positive: 32, positive conditional: 0, positive unconditional: 32, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 99, Positive cache size: 79, Positive conditional cache size: 0, Positive unconditional cache size: 79, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.2ms, 48 PlacesBefore, 48 PlacesAfterwards, 40 TransitionsBefore, 40 TransitionsAfterwards, 398 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 272 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 54, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 54, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 99, Positive cache size: 79, Positive conditional cache size: 0, Positive unconditional cache size: 79, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 55.5ms, 54 PlacesBefore, 54 PlacesAfterwards, 43 TransitionsBefore, 43 TransitionsAfterwards, 418 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 469 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 66, positive: 41, positive conditional: 0, positive unconditional: 41, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 66, positive: 41, positive conditional: 0, positive unconditional: 41, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 99, Positive cache size: 79, Positive conditional cache size: 0, Positive unconditional cache size: 79, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 763.1ms, 57 PlacesBefore, 57 PlacesAfterwards, 49 TransitionsBefore, 49 TransitionsAfterwards, 466 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 1292 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 205, positive: 145, positive conditional: 0, positive unconditional: 145, negative: 60, negative conditional: 0, negative unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 205, positive: 139, positive conditional: 0, positive unconditional: 139, negative: 60, negative conditional: 0, negative unconditional: 60, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 101, Positive cache size: 85, Positive conditional cache size: 0, Positive unconditional cache size: 85, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 36.8ms, 62 PlacesBefore, 62 PlacesAfterwards, 53 TransitionsBefore, 53 TransitionsAfterwards, 490 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 851 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 121, positive: 82, positive conditional: 0, positive unconditional: 82, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 121, positive: 82, positive conditional: 0, positive unconditional: 82, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 101, Positive cache size: 85, Positive conditional cache size: 0, Positive unconditional cache size: 85, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 62.4ms, 65 PlacesBefore, 65 PlacesAfterwards, 60 TransitionsBefore, 60 TransitionsAfterwards, 582 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 372 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 94, positive: 79, positive conditional: 0, positive unconditional: 79, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 94, positive: 79, positive conditional: 0, positive unconditional: 79, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 101, Positive cache size: 85, Positive conditional cache size: 0, Positive unconditional cache size: 85, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 32.0ms, 71 PlacesBefore, 71 PlacesAfterwards, 57 TransitionsBefore, 57 TransitionsAfterwards, 580 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 296 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 72, positive: 60, positive conditional: 0, positive unconditional: 60, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 72, positive: 59, positive conditional: 0, positive unconditional: 59, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 102, Positive cache size: 86, Positive conditional cache size: 0, Positive unconditional cache size: 86, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 39.8ms, 70 PlacesBefore, 70 PlacesAfterwards, 57 TransitionsBefore, 57 TransitionsAfterwards, 580 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 340 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 96, positive: 82, positive conditional: 0, positive unconditional: 82, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 96, positive: 82, positive conditional: 0, positive unconditional: 82, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 102, Positive cache size: 86, Positive conditional cache size: 0, Positive unconditional cache size: 86, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3533.3ms, 76 PlacesBefore, 71 PlacesAfterwards, 49 TransitionsBefore, 42 TransitionsAfterwards, 426 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 5 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 10 TotalNumberOfCompositions, 493 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 285, positive: 263, positive conditional: 0, positive unconditional: 263, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 285, positive: 259, positive conditional: 0, positive unconditional: 259, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 38, Positive cache size: 33, Positive conditional cache size: 0, Positive unconditional cache size: 33, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 902.4ms, 53 PlacesBefore, 47 PlacesAfterwards, 25 TransitionsBefore, 24 TransitionsAfterwards, 76 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 26 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 14, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 8, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 14, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 8, unknown conditional: 0, unknown unconditional: 8] , Statistics on independence cache: Total cache size (in pairs): 34, Positive cache size: 30, Positive conditional cache size: 0, Positive unconditional cache size: 30, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4 - 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; [L713] 0 int __unbuffered_p2_EBX = 0; [L715] 0 int a = 0; [L716] 0 _Bool main$tmp_guard0; [L717] 0 _Bool main$tmp_guard1; [L719] 0 int x = 0; [L721] 0 int y = 0; [L722] 0 _Bool y$flush_delayed; [L723] 0 int y$mem_tmp; [L724] 0 _Bool y$r_buff0_thd0; [L725] 0 _Bool y$r_buff0_thd1; [L726] 0 _Bool y$r_buff0_thd2; [L727] 0 _Bool y$r_buff0_thd3; [L728] 0 _Bool y$r_buff1_thd0; [L729] 0 _Bool y$r_buff1_thd1; [L730] 0 _Bool y$r_buff1_thd2; [L731] 0 _Bool y$r_buff1_thd3; [L732] 0 _Bool y$read_delayed; [L733] 0 int *y$read_delayed_var; [L734] 0 int y$w_buff0; [L735] 0 _Bool y$w_buff0_used; [L736] 0 int y$w_buff1; [L737] 0 _Bool y$w_buff1_used; [L739] 0 int z = 0; [L740] 0 _Bool weak$$choice0; [L741] 0 _Bool weak$$choice2; [L823] 0 pthread_t t1196; [L824] FCALL, FORK 0 pthread_create(&t1196, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=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] [L825] 0 pthread_t t1197; [L826] FCALL, FORK 0 pthread_create(&t1197, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=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] [L827] 0 pthread_t t1198; [L828] FCALL, FORK 0 pthread_create(&t1198, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=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] [L780] 3 y$w_buff1 = y$w_buff0 [L781] 3 y$w_buff0 = 2 [L782] 3 y$w_buff1_used = y$w_buff0_used [L783] 3 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 3 !(!expression) [L785] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L786] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L787] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L788] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L789] 3 y$r_buff0_thd3 = (_Bool)1 [L792] 3 z = 1 [L795] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, main$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=1] [L798] 3 __unbuffered_p2_EBX = a VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=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=1] [L745] 1 a = 1 [L748] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, 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] [L753] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L755] 1 return 0; [L760] 2 x = 2 [L763] 2 y = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, 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] [L801] 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) [L801] 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) [L802] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L802] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L803] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L803] 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 [L804] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L804] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L805] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L805] 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 [L766] 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) [L766] EXPR 2 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y [L766] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L766] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L767] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L767] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L768] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L768] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L769] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L769] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L770] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L770] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L773] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L775] 2 return 0; [L808] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L810] 3 return 0; [L830] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L3] COND FALSE 0 !(!cond) [L834] 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) [L834] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L834] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L834] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L835] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L835] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L836] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L836] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L837] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L837] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L838] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L838] 0 y$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 [L841] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L842] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L843] 0 y$flush_delayed = weak$$choice2 [L844] 0 y$mem_tmp = y [L845] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L845] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L846] EXPR 0 weak$$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$w_buff0)) [L846] EXPR 0 !y$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) [L846] EXPR 0 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L846] 0 y$w_buff0 = weak$$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)) [L847] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L847] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1) [L847] EXPR 0 weak$$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$w_buff1)) [L847] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L848] EXPR 0 weak$$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)) [L848] 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) [L848] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L848] 0 y$w_buff0_used = weak$$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)) [L849] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L849] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L849] EXPR 0 weak$$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$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L849] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L850] EXPR 0 weak$$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)) [L850] 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) [L850] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L850] 0 y$r_buff0_thd0 = weak$$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)) [L851] EXPR 0 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L851] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L851] EXPR 0 weak$$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$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L851] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L852] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 1 && __unbuffered_p2_EBX == 0) [L853] EXPR 0 y$flush_delayed ? y$mem_tmp : y [L853] 0 y = y$flush_delayed ? y$mem_tmp : y [L854] 0 y$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=52, 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, 99 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: 19499.4ms, OverallIterations: 16, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1382.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7254.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 49 SDtfs, 38 SDslu, 18 SDs, 0 SdLazy, 327 SolverSat, 98 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 383.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 402.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=552occurred in iteration=11, InterpolantAutomatonStates: 71, 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: 42.0ms SsaConstructionTime, 433.7ms SatisfiabilityAnalysisTime, 972.8ms InterpolantComputationTime, 233 NumberOfCodeBlocks, 233 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 202 ConstructedInterpolants, 0 QuantifiedInterpolants, 1220 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...