/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/mix057_power.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 04:50:39,522 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 04:50:39,525 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 04:50:39,557 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 04:50:39,557 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 04:50:39,560 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 04:50:39,562 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 04:50:39,566 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 04:50:39,568 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 04:50:39,572 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 04:50:39,573 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 04:50:39,573 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 04:50:39,574 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 04:50:39,575 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 04:50:39,576 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 04:50:39,580 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 04:50:39,582 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 04:50:39,583 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 04:50:39,585 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 04:50:39,587 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 04:50:39,588 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 04:50:39,590 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 04:50:39,591 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 04:50:39,591 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 04:50:39,593 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-25 04:50:39,593 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-25 04:50:39,593 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-25 04:50:39,594 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-25 04:50:39,594 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-25 04:50:39,594 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2021-03-25 04:50:39,597 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 04:50:39,598 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 04:50:39,598 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 04:50:39,602 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 04:50:39,632 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 04:50:39,632 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 04:50:39,635 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 04:50:39,635 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 04:50:39,635 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 04:50:39,635 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 04:50:39,635 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 04:50:39,635 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 04:50:39,635 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 04:50:39,636 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 04:50:39,636 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 04:50:39,636 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 04:50:39,637 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 04:50:39,637 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 04:50:39,637 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 04:50:39,637 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 04:50:39,637 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 04:50:39,637 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 04:50:39,637 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 04:50:39,637 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 04:50:39,637 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 04:50:39,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 04:50:39,638 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 04:50:39,638 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 04:50:39,638 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 04:50:39,638 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 04:50:39,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 04:50:39,638 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-25 04:50:39,638 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 04:50:39,638 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 04:50:39,638 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 04:50:39,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 04:50:39,916 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 04:50:39,918 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 04:50:39,919 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 04:50:39,923 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 04:50:39,924 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix057_power.opt.i [2021-03-25 04:50:39,999 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95ab64251/872e804318bc4470adb3e17dbf6a096a/FLAG4a727d892 [2021-03-25 04:50:40,456 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 04:50:40,456 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix057_power.opt.i [2021-03-25 04:50:40,470 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95ab64251/872e804318bc4470adb3e17dbf6a096a/FLAG4a727d892 [2021-03-25 04:50:40,483 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95ab64251/872e804318bc4470adb3e17dbf6a096a [2021-03-25 04:50:40,484 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 04:50:40,485 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 04:50:40,489 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 04:50:40,489 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 04:50:40,491 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 04:50:40,491 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 04:50:40" (1/1) ... [2021-03-25 04:50:40,493 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9110135 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:50:40, skipping insertion in model container [2021-03-25 04:50:40,493 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 04:50:40" (1/1) ... [2021-03-25 04:50:40,497 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 04:50:40,539 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 04:50:40,686 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/mix057_power.opt.i[950,963] [2021-03-25 04:50:40,856 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 04:50:40,861 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 04:50:40,871 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/mix057_power.opt.i[950,963] [2021-03-25 04:50:40,929 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 04:50:41,005 INFO L208 MainTranslator]: Completed translation [2021-03-25 04:50:41,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:50:41 WrapperNode [2021-03-25 04:50:41,006 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 04:50:41,007 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 04:50:41,007 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 04:50:41,007 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 04:50:41,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:50:41" (1/1) ... [2021-03-25 04:50:41,044 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:50:41" (1/1) ... [2021-03-25 04:50:41,080 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 04:50:41,081 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 04:50:41,082 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 04:50:41,082 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 04:50:41,088 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:50:41" (1/1) ... [2021-03-25 04:50:41,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:50:41" (1/1) ... [2021-03-25 04:50:41,101 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:50:41" (1/1) ... [2021-03-25 04:50:41,101 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:50:41" (1/1) ... [2021-03-25 04:50:41,106 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:50:41" (1/1) ... [2021-03-25 04:50:41,109 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:50:41" (1/1) ... [2021-03-25 04:50:41,111 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:50:41" (1/1) ... [2021-03-25 04:50:41,129 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 04:50:41,130 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 04:50:41,130 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 04:50:41,130 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 04:50:41,130 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:50:41" (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 04:50:41,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 04:50:41,277 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 04:50:41,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 04:50:41,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 04:50:41,278 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-25 04:50:41,278 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-25 04:50:41,278 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-25 04:50:41,278 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-25 04:50:41,279 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-25 04:50:41,279 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-25 04:50:41,279 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-03-25 04:50:41,279 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-03-25 04:50:41,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 04:50:41,279 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 04:50:41,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 04:50:41,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 04:50:41,280 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 04:50:42,435 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 04:50:42,436 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-25 04:50:42,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 04:50:42 BoogieIcfgContainer [2021-03-25 04:50:42,437 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 04:50:42,438 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 04:50:42,438 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 04:50:42,440 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 04:50:42,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 04:50:40" (1/3) ... [2021-03-25 04:50:42,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4909ddde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 04:50:42, skipping insertion in model container [2021-03-25 04:50:42,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:50:41" (2/3) ... [2021-03-25 04:50:42,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4909ddde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 04:50:42, skipping insertion in model container [2021-03-25 04:50:42,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 04:50:42" (3/3) ... [2021-03-25 04:50:42,442 INFO L111 eAbstractionObserver]: Analyzing ICFG mix057_power.opt.i [2021-03-25 04:50:42,446 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 04:50:42,449 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-25 04:50:42,450 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 04:50:42,470 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,471 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,471 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,471 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,471 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,471 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,471 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,471 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,472 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,472 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,472 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,472 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,472 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,472 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,472 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,472 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,472 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,472 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,473 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,473 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,473 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,473 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,473 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,473 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,473 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,473 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,474 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,474 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,474 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,474 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,474 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,474 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,474 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,474 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,474 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,474 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,474 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,475 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,475 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,475 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,475 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,475 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,475 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,475 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,475 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,475 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,476 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,476 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,476 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,476 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,476 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,476 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,477 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,477 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,477 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,477 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,477 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,477 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,477 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,477 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,477 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,477 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,478 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,478 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,478 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,478 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,478 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,478 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,478 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,478 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,478 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,478 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,479 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,479 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,479 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,479 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,479 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,479 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,479 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,479 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,480 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,480 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,480 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,480 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,481 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,481 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,482 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,482 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,483 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,483 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,483 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,483 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,483 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,483 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,483 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,484 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,484 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,484 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,485 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,485 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,485 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,485 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,485 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,485 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,485 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,486 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,486 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,486 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,486 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,486 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,487 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,487 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,487 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,487 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:50:42,488 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 04:50:42,500 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-03-25 04:50:42,513 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 04:50:42,513 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 04:50:42,513 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 04:50:42,513 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 04:50:42,513 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 04:50:42,513 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 04:50:42,513 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 04:50:42,514 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 04:50:42,521 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 123 places, 112 transitions, 244 flow [2021-03-25 04:50:42,546 INFO L129 PetriNetUnfolder]: 2/108 cut-off events. [2021-03-25 04:50:42,546 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:50:42,549 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 108 events. 2/108 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2021-03-25 04:50:42,550 INFO L82 GeneralOperation]: Start removeDead. Operand has 123 places, 112 transitions, 244 flow [2021-03-25 04:50:42,553 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 119 places, 108 transitions, 228 flow [2021-03-25 04:50:42,554 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:50:42,559 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 119 places, 108 transitions, 228 flow [2021-03-25 04:50:42,561 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 119 places, 108 transitions, 228 flow [2021-03-25 04:50:42,562 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 119 places, 108 transitions, 228 flow [2021-03-25 04:50:42,575 INFO L129 PetriNetUnfolder]: 2/108 cut-off events. [2021-03-25 04:50:42,576 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:50:42,576 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 108 events. 2/108 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 86 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2021-03-25 04:50:42,578 INFO L142 LiptonReduction]: Number of co-enabled transitions 2406 [2021-03-25 04:50:43,428 WARN L205 SmtUtils]: Spent 651.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 188 [2021-03-25 04:50:43,706 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-03-25 04:50:44,928 WARN L205 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 312 DAG size of output: 268 [2021-03-25 04:50:45,438 WARN L205 SmtUtils]: Spent 507.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-03-25 04:50:46,075 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-25 04:50:46,393 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 88 [2021-03-25 04:50:47,555 WARN L205 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 187 [2021-03-25 04:50:47,770 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-03-25 04:50:48,393 WARN L205 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 267 [2021-03-25 04:50:48,972 WARN L205 SmtUtils]: Spent 576.00 ms on a formula simplification that was a NOOP. DAG size: 267 [2021-03-25 04:50:49,332 INFO L154 LiptonReduction]: Checked pairs total: 4010 [2021-03-25 04:50:49,332 INFO L156 LiptonReduction]: Total number of compositions: 75 [2021-03-25 04:50:49,334 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6780 [2021-03-25 04:50:49,346 INFO L129 PetriNetUnfolder]: 0/26 cut-off events. [2021-03-25 04:50:49,346 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:50:49,347 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:50:49,347 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:50:49,347 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:50:49,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:50:49,353 INFO L82 PathProgramCache]: Analyzing trace with hash -1880455195, now seen corresponding path program 1 times [2021-03-25 04:50:49,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:50:49,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828474177] [2021-03-25 04:50:49,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:50:49,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:50:49,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:49,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:50:49,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:49,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:50:49,583 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 04:50:49,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828474177] [2021-03-25 04:50:49,583 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:50:49,584 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:50:49,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706524952] [2021-03-25 04:50:49,589 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:50:49,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:50:49,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:50:49,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:50:49,600 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 187 [2021-03-25 04:50:49,604 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 96 flow. Second operand has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states 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 04:50:49,604 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:50:49,604 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 187 [2021-03-25 04:50:49,605 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:50:49,655 INFO L129 PetriNetUnfolder]: 23/98 cut-off events. [2021-03-25 04:50:49,656 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:50:49,656 INFO L84 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 98 events. 23/98 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 340 event pairs, 3 based on Foata normal form. 6/97 useless extension candidates. Maximal degree in co-relation 140. Up to 37 conditions per place. [2021-03-25 04:50:49,657 INFO L132 encePairwiseOnDemand]: 183/187 looper letters, 7 selfloop transitions, 2 changer transitions 5/43 dead transitions. [2021-03-25 04:50:49,657 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 43 transitions, 120 flow [2021-03-25 04:50:49,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:50:49,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:50:49,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 506 transitions. [2021-03-25 04:50:49,666 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9019607843137255 [2021-03-25 04:50:49,668 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 506 transitions. [2021-03-25 04:50:49,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 506 transitions. [2021-03-25 04:50:49,670 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:50:49,672 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 506 transitions. [2021-03-25 04:50:49,676 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 0 states have call successors, (0), 0 states 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 04:50:49,682 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:50:49,683 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:50:49,684 INFO L185 Difference]: Start difference. First operand has 54 places, 42 transitions, 96 flow. Second operand 3 states and 506 transitions. [2021-03-25 04:50:49,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 43 transitions, 120 flow [2021-03-25 04:50:49,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 43 transitions, 116 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-25 04:50:49,688 INFO L241 Difference]: Finished difference. Result has 50 places, 35 transitions, 82 flow [2021-03-25 04:50:49,689 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=50, PETRI_TRANSITIONS=35} [2021-03-25 04:50:49,690 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, -4 predicate places. [2021-03-25 04:50:49,690 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:50:49,690 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 35 transitions, 82 flow [2021-03-25 04:50:49,691 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 35 transitions, 82 flow [2021-03-25 04:50:49,692 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 35 transitions, 82 flow [2021-03-25 04:50:49,696 INFO L129 PetriNetUnfolder]: 0/35 cut-off events. [2021-03-25 04:50:49,696 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:50:49,696 INFO L84 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 35 events. 0/35 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-25 04:50:49,697 INFO L142 LiptonReduction]: Number of co-enabled transitions 362 [2021-03-25 04:50:50,053 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-03-25 04:50:50,181 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-03-25 04:50:50,750 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-03-25 04:50:51,057 WARN L205 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-03-25 04:50:51,597 WARN L205 SmtUtils]: Spent 537.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2021-03-25 04:50:52,121 WARN L205 SmtUtils]: Spent 520.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2021-03-25 04:50:52,429 INFO L154 LiptonReduction]: Checked pairs total: 1154 [2021-03-25 04:50:52,429 INFO L156 LiptonReduction]: Total number of compositions: 8 [2021-03-25 04:50:52,429 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2739 [2021-03-25 04:50:52,430 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 27 transitions, 66 flow [2021-03-25 04:50:52,431 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states 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 04:50:52,431 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:50:52,431 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 04:50:52,431 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 04:50:52,432 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:50:52,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:50:52,433 INFO L82 PathProgramCache]: Analyzing trace with hash 157805214, now seen corresponding path program 1 times [2021-03-25 04:50:52,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:50:52,433 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218205327] [2021-03-25 04:50:52,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:50:52,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:50:52,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:52,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 04:50:52,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:52,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:50:52,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:52,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 04:50:52,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:52,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 04:50:52,628 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-25 04:50:52,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 04:50:52,632 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 04:50:52,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218205327] [2021-03-25 04:50:52,633 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:50:52,633 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 04:50:52,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914644244] [2021-03-25 04:50:52,633 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 04:50:52,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:50:52,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 04:50:52,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 04:50:52,636 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 195 [2021-03-25 04:50:52,636 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 27 transitions, 66 flow. Second operand has 7 states, 7 states have (on average 149.85714285714286) internal successors, (1049), 7 states have internal predecessors, (1049), 0 states have call successors, (0), 0 states 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 04:50:52,636 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:50:52,636 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 195 [2021-03-25 04:50:52,637 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:50:52,700 INFO L129 PetriNetUnfolder]: 24/79 cut-off events. [2021-03-25 04:50:52,700 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-03-25 04:50:52,700 INFO L84 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 79 events. 24/79 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 238 event pairs, 16 based on Foata normal form. 2/79 useless extension candidates. Maximal degree in co-relation 137. Up to 45 conditions per place. [2021-03-25 04:50:52,701 INFO L132 encePairwiseOnDemand]: 189/195 looper letters, 8 selfloop transitions, 6 changer transitions 0/33 dead transitions. [2021-03-25 04:50:52,701 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 33 transitions, 108 flow [2021-03-25 04:50:52,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:50:52,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:50:52,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 612 transitions. [2021-03-25 04:50:52,703 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7846153846153846 [2021-03-25 04:50:52,703 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 612 transitions. [2021-03-25 04:50:52,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 612 transitions. [2021-03-25 04:50:52,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:50:52,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 612 transitions. [2021-03-25 04:50:52,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states 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 04:50:52,706 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 195.0) internal successors, (975), 5 states have internal predecessors, (975), 0 states have call successors, (0), 0 states 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 04:50:52,706 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 195.0) internal successors, (975), 5 states have internal predecessors, (975), 0 states have call successors, (0), 0 states 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 04:50:52,707 INFO L185 Difference]: Start difference. First operand has 38 places, 27 transitions, 66 flow. Second operand 4 states and 612 transitions. [2021-03-25 04:50:52,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 33 transitions, 108 flow [2021-03-25 04:50:52,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 33 transitions, 102 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 04:50:52,708 INFO L241 Difference]: Finished difference. Result has 41 places, 31 transitions, 100 flow [2021-03-25 04:50:52,708 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=100, PETRI_PLACES=41, PETRI_TRANSITIONS=31} [2021-03-25 04:50:52,708 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, -13 predicate places. [2021-03-25 04:50:52,708 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:50:52,708 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 31 transitions, 100 flow [2021-03-25 04:50:52,709 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 31 transitions, 100 flow [2021-03-25 04:50:52,709 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 31 transitions, 100 flow [2021-03-25 04:50:52,713 INFO L129 PetriNetUnfolder]: 4/39 cut-off events. [2021-03-25 04:50:52,713 INFO L130 PetriNetUnfolder]: For 5/6 co-relation queries the response was YES. [2021-03-25 04:50:52,714 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 39 events. 4/39 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 76 event pairs, 1 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 62. Up to 10 conditions per place. [2021-03-25 04:50:52,714 INFO L142 LiptonReduction]: Number of co-enabled transitions 362 [2021-03-25 04:50:53,104 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 118 [2021-03-25 04:50:53,225 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2021-03-25 04:50:53,505 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 118 [2021-03-25 04:50:53,628 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2021-03-25 04:50:53,632 INFO L154 LiptonReduction]: Checked pairs total: 1086 [2021-03-25 04:50:53,632 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 04:50:53,632 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 924 [2021-03-25 04:50:53,632 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 29 transitions, 94 flow [2021-03-25 04:50:53,633 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 149.85714285714286) internal successors, (1049), 7 states have internal predecessors, (1049), 0 states have call successors, (0), 0 states 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 04:50:53,633 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:50:53,633 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:50:53,633 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 04:50:53,633 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:50:53,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:50:53,634 INFO L82 PathProgramCache]: Analyzing trace with hash -1553778583, now seen corresponding path program 1 times [2021-03-25 04:50:53,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:50:53,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366035640] [2021-03-25 04:50:53,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:50:53,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:50:53,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:53,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:50:53,678 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 04:50:53,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366035640] [2021-03-25 04:50:53,679 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:50:53,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-25 04:50:53,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941141508] [2021-03-25 04:50:53,679 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:50:53,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:50:53,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:50:53,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:50:53,680 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 197 [2021-03-25 04:50:53,681 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 29 transitions, 94 flow. Second operand has 3 states, 3 states have (on average 172.66666666666666) internal successors, (518), 3 states have internal predecessors, (518), 0 states have call successors, (0), 0 states 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 04:50:53,681 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:50:53,681 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 197 [2021-03-25 04:50:53,681 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:50:53,695 INFO L129 PetriNetUnfolder]: 12/64 cut-off events. [2021-03-25 04:50:53,695 INFO L130 PetriNetUnfolder]: For 57/61 co-relation queries the response was YES. [2021-03-25 04:50:53,695 INFO L84 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 64 events. 12/64 cut-off events. For 57/61 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 219 event pairs, 7 based on Foata normal form. 4/60 useless extension candidates. Maximal degree in co-relation 128. Up to 21 conditions per place. [2021-03-25 04:50:53,696 INFO L132 encePairwiseOnDemand]: 193/197 looper letters, 3 selfloop transitions, 3 changer transitions 0/31 dead transitions. [2021-03-25 04:50:53,696 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 31 transitions, 110 flow [2021-03-25 04:50:53,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:50:53,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:50:53,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 523 transitions. [2021-03-25 04:50:53,697 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8849407783417935 [2021-03-25 04:50:53,698 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 523 transitions. [2021-03-25 04:50:53,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 523 transitions. [2021-03-25 04:50:53,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:50:53,698 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 523 transitions. [2021-03-25 04:50:53,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 174.33333333333334) internal successors, (523), 3 states have internal predecessors, (523), 0 states have call successors, (0), 0 states 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 04:50:53,700 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 197.0) internal successors, (788), 4 states have internal predecessors, (788), 0 states have call successors, (0), 0 states 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 04:50:53,700 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 197.0) internal successors, (788), 4 states have internal predecessors, (788), 0 states have call successors, (0), 0 states 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 04:50:53,700 INFO L185 Difference]: Start difference. First operand has 39 places, 29 transitions, 94 flow. Second operand 3 states and 523 transitions. [2021-03-25 04:50:53,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 31 transitions, 110 flow [2021-03-25 04:50:53,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 31 transitions, 108 flow, removed 1 selfloop flow, removed 0 redundant places. [2021-03-25 04:50:53,701 INFO L241 Difference]: Finished difference. Result has 42 places, 31 transitions, 111 flow [2021-03-25 04:50:53,701 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=111, PETRI_PLACES=42, PETRI_TRANSITIONS=31} [2021-03-25 04:50:53,702 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, -12 predicate places. [2021-03-25 04:50:53,702 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:50:53,702 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 31 transitions, 111 flow [2021-03-25 04:50:53,702 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 31 transitions, 111 flow [2021-03-25 04:50:53,702 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 31 transitions, 111 flow [2021-03-25 04:50:53,709 INFO L129 PetriNetUnfolder]: 15/67 cut-off events. [2021-03-25 04:50:53,709 INFO L130 PetriNetUnfolder]: For 29/30 co-relation queries the response was YES. [2021-03-25 04:50:53,709 INFO L84 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 67 events. 15/67 cut-off events. For 29/30 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 200 event pairs, 6 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 136. Up to 25 conditions per place. [2021-03-25 04:50:53,710 INFO L142 LiptonReduction]: Number of co-enabled transitions 428 [2021-03-25 04:50:53,711 INFO L154 LiptonReduction]: Checked pairs total: 342 [2021-03-25 04:50:53,712 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:50:53,712 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-03-25 04:50:53,712 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 31 transitions, 111 flow [2021-03-25 04:50:53,713 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 172.66666666666666) internal successors, (518), 3 states have internal predecessors, (518), 0 states have call successors, (0), 0 states 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 04:50:53,713 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:50:53,713 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:50:53,713 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 04:50:53,713 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:50:53,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:50:53,713 INFO L82 PathProgramCache]: Analyzing trace with hash 1505289215, now seen corresponding path program 1 times [2021-03-25 04:50:53,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:50:53,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123233971] [2021-03-25 04:50:53,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:50:53,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:50:53,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:53,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 04:50:53,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:53,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 04:50:53,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:53,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:50:53,784 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 04:50:53,784 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123233971] [2021-03-25 04:50:53,784 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:50:53,785 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:50:53,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662021905] [2021-03-25 04:50:53,785 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:50:53,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:50:53,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:50:53,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:50:53,786 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 197 [2021-03-25 04:50:53,787 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 31 transitions, 111 flow. Second operand has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 0 states 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 04:50:53,787 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:50:53,787 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 197 [2021-03-25 04:50:53,787 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:50:53,846 INFO L129 PetriNetUnfolder]: 45/131 cut-off events. [2021-03-25 04:50:53,847 INFO L130 PetriNetUnfolder]: For 82/82 co-relation queries the response was YES. [2021-03-25 04:50:53,850 INFO L84 FinitePrefix]: Finished finitePrefix Result has 339 conditions, 131 events. 45/131 cut-off events. For 82/82 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 521 event pairs, 9 based on Foata normal form. 1/118 useless extension candidates. Maximal degree in co-relation 325. Up to 58 conditions per place. [2021-03-25 04:50:53,851 INFO L132 encePairwiseOnDemand]: 191/197 looper letters, 10 selfloop transitions, 7 changer transitions 0/37 dead transitions. [2021-03-25 04:50:53,851 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 37 transitions, 165 flow [2021-03-25 04:50:53,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:50:53,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:50:53,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 643 transitions. [2021-03-25 04:50:53,854 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.815989847715736 [2021-03-25 04:50:53,854 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 643 transitions. [2021-03-25 04:50:53,854 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 643 transitions. [2021-03-25 04:50:53,854 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:50:53,854 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 643 transitions. [2021-03-25 04:50:53,855 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 160.75) internal successors, (643), 4 states have internal predecessors, (643), 0 states have call successors, (0), 0 states 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 04:50:53,856 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 197.0) internal successors, (985), 5 states have internal predecessors, (985), 0 states have call successors, (0), 0 states 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 04:50:53,857 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 197.0) internal successors, (985), 5 states have internal predecessors, (985), 0 states have call successors, (0), 0 states 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 04:50:53,857 INFO L185 Difference]: Start difference. First operand has 42 places, 31 transitions, 111 flow. Second operand 4 states and 643 transitions. [2021-03-25 04:50:53,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 37 transitions, 165 flow [2021-03-25 04:50:53,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 37 transitions, 162 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 04:50:53,859 INFO L241 Difference]: Finished difference. Result has 45 places, 34 transitions, 140 flow [2021-03-25 04:50:53,859 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=140, PETRI_PLACES=45, PETRI_TRANSITIONS=34} [2021-03-25 04:50:53,859 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, -9 predicate places. [2021-03-25 04:50:53,859 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:50:53,859 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 34 transitions, 140 flow [2021-03-25 04:50:53,859 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 34 transitions, 140 flow [2021-03-25 04:50:53,859 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 34 transitions, 140 flow [2021-03-25 04:50:53,875 INFO L129 PetriNetUnfolder]: 45/115 cut-off events. [2021-03-25 04:50:53,875 INFO L130 PetriNetUnfolder]: For 131/137 co-relation queries the response was YES. [2021-03-25 04:50:53,876 INFO L84 FinitePrefix]: Finished finitePrefix Result has 336 conditions, 115 events. 45/115 cut-off events. For 131/137 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 447 event pairs, 21 based on Foata normal form. 2/91 useless extension candidates. Maximal degree in co-relation 322. Up to 51 conditions per place. [2021-03-25 04:50:53,878 INFO L142 LiptonReduction]: Number of co-enabled transitions 474 [2021-03-25 04:50:54,024 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2021-03-25 04:50:54,346 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 80 [2021-03-25 04:50:54,481 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-03-25 04:50:54,486 INFO L154 LiptonReduction]: Checked pairs total: 512 [2021-03-25 04:50:54,486 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 04:50:54,487 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 628 [2021-03-25 04:50:54,487 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 34 transitions, 144 flow [2021-03-25 04:50:54,487 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 0 states 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 04:50:54,488 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:50:54,488 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:50:54,488 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 04:50:54,488 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:50:54,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:50:54,488 INFO L82 PathProgramCache]: Analyzing trace with hash -583256081, now seen corresponding path program 2 times [2021-03-25 04:50:54,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:50:54,488 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869602467] [2021-03-25 04:50:54,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:50:54,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:50:54,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:54,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 04:50:54,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:54,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:50:54,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:54,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:50:54,566 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 04:50:54,567 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869602467] [2021-03-25 04:50:54,567 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:50:54,567 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:50:54,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571495400] [2021-03-25 04:50:54,568 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:50:54,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:50:54,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:50:54,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:50:54,569 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 198 [2021-03-25 04:50:54,570 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 34 transitions, 144 flow. Second operand has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 0 states have call successors, (0), 0 states 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 04:50:54,570 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:50:54,570 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 198 [2021-03-25 04:50:54,570 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:50:54,624 INFO L129 PetriNetUnfolder]: 39/120 cut-off events. [2021-03-25 04:50:54,625 INFO L130 PetriNetUnfolder]: For 113/119 co-relation queries the response was YES. [2021-03-25 04:50:54,625 INFO L84 FinitePrefix]: Finished finitePrefix Result has 366 conditions, 120 events. 39/120 cut-off events. For 113/119 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 469 event pairs, 8 based on Foata normal form. 3/108 useless extension candidates. Maximal degree in co-relation 350. Up to 56 conditions per place. [2021-03-25 04:50:54,627 INFO L132 encePairwiseOnDemand]: 193/198 looper letters, 11 selfloop transitions, 7 changer transitions 0/38 dead transitions. [2021-03-25 04:50:54,627 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 38 transitions, 204 flow [2021-03-25 04:50:54,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:50:54,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:50:54,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 647 transitions. [2021-03-25 04:50:54,629 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8169191919191919 [2021-03-25 04:50:54,629 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 647 transitions. [2021-03-25 04:50:54,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 647 transitions. [2021-03-25 04:50:54,629 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:50:54,629 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 647 transitions. [2021-03-25 04:50:54,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 161.75) internal successors, (647), 4 states have internal predecessors, (647), 0 states have call successors, (0), 0 states 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 04:50:54,631 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 198.0) internal successors, (990), 5 states have internal predecessors, (990), 0 states have call successors, (0), 0 states 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 04:50:54,632 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 198.0) internal successors, (990), 5 states have internal predecessors, (990), 0 states have call successors, (0), 0 states 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 04:50:54,632 INFO L185 Difference]: Start difference. First operand has 45 places, 34 transitions, 144 flow. Second operand 4 states and 647 transitions. [2021-03-25 04:50:54,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 38 transitions, 204 flow [2021-03-25 04:50:54,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 38 transitions, 195 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-03-25 04:50:54,636 INFO L241 Difference]: Finished difference. Result has 48 places, 36 transitions, 167 flow [2021-03-25 04:50:54,636 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=167, PETRI_PLACES=48, PETRI_TRANSITIONS=36} [2021-03-25 04:50:54,636 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, -6 predicate places. [2021-03-25 04:50:54,636 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:50:54,636 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 36 transitions, 167 flow [2021-03-25 04:50:54,636 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 36 transitions, 167 flow [2021-03-25 04:50:54,637 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 36 transitions, 167 flow [2021-03-25 04:50:54,655 INFO L129 PetriNetUnfolder]: 28/100 cut-off events. [2021-03-25 04:50:54,655 INFO L130 PetriNetUnfolder]: For 144/149 co-relation queries the response was YES. [2021-03-25 04:50:54,656 INFO L84 FinitePrefix]: Finished finitePrefix Result has 290 conditions, 100 events. 28/100 cut-off events. For 144/149 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 395 event pairs, 13 based on Foata normal form. 2/89 useless extension candidates. Maximal degree in co-relation 274. Up to 34 conditions per place. [2021-03-25 04:50:54,658 INFO L142 LiptonReduction]: Number of co-enabled transitions 504 [2021-03-25 04:50:54,662 INFO L154 LiptonReduction]: Checked pairs total: 274 [2021-03-25 04:50:54,662 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:50:54,668 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 32 [2021-03-25 04:50:54,669 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 36 transitions, 167 flow [2021-03-25 04:50:54,669 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 0 states have call successors, (0), 0 states 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 04:50:54,669 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:50:54,669 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:50:54,669 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 04:50:54,669 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:50:54,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:50:54,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1374681785, now seen corresponding path program 1 times [2021-03-25 04:50:54,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:50:54,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660543791] [2021-03-25 04:50:54,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:50:54,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:50:54,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:54,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 04:50:54,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:54,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 04:50:54,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:54,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:50:54,766 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 04:50:54,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660543791] [2021-03-25 04:50:54,766 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:50:54,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:50:54,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292850881] [2021-03-25 04:50:54,767 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:50:54,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:50:54,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:50:54,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:50:54,768 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 198 [2021-03-25 04:50:54,769 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 36 transitions, 167 flow. Second operand has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 0 states have call successors, (0), 0 states 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 04:50:54,769 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:50:54,769 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 198 [2021-03-25 04:50:54,769 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:50:54,830 INFO L129 PetriNetUnfolder]: 42/124 cut-off events. [2021-03-25 04:50:54,830 INFO L130 PetriNetUnfolder]: For 201/207 co-relation queries the response was YES. [2021-03-25 04:50:54,830 INFO L84 FinitePrefix]: Finished finitePrefix Result has 406 conditions, 124 events. 42/124 cut-off events. For 201/207 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 453 event pairs, 10 based on Foata normal form. 2/114 useless extension candidates. Maximal degree in co-relation 388. Up to 56 conditions per place. [2021-03-25 04:50:54,831 INFO L132 encePairwiseOnDemand]: 192/198 looper letters, 10 selfloop transitions, 10 changer transitions 0/40 dead transitions. [2021-03-25 04:50:54,831 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 40 transitions, 234 flow [2021-03-25 04:50:54,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:50:54,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:50:54,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 619 transitions. [2021-03-25 04:50:54,834 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7815656565656566 [2021-03-25 04:50:54,834 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 619 transitions. [2021-03-25 04:50:54,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 619 transitions. [2021-03-25 04:50:54,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:50:54,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 619 transitions. [2021-03-25 04:50:54,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 154.75) internal successors, (619), 4 states have internal predecessors, (619), 0 states have call successors, (0), 0 states 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 04:50:54,836 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 198.0) internal successors, (990), 5 states have internal predecessors, (990), 0 states have call successors, (0), 0 states 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 04:50:54,836 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 198.0) internal successors, (990), 5 states have internal predecessors, (990), 0 states have call successors, (0), 0 states 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 04:50:54,836 INFO L185 Difference]: Start difference. First operand has 48 places, 36 transitions, 167 flow. Second operand 4 states and 619 transitions. [2021-03-25 04:50:54,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 40 transitions, 234 flow [2021-03-25 04:50:54,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 40 transitions, 226 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-25 04:50:54,840 INFO L241 Difference]: Finished difference. Result has 51 places, 38 transitions, 200 flow [2021-03-25 04:50:54,840 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=200, PETRI_PLACES=51, PETRI_TRANSITIONS=38} [2021-03-25 04:50:54,840 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, -3 predicate places. [2021-03-25 04:50:54,840 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:50:54,840 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 38 transitions, 200 flow [2021-03-25 04:50:54,840 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 38 transitions, 200 flow [2021-03-25 04:50:54,840 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 38 transitions, 200 flow [2021-03-25 04:50:54,854 INFO L129 PetriNetUnfolder]: 38/108 cut-off events. [2021-03-25 04:50:54,854 INFO L130 PetriNetUnfolder]: For 265/283 co-relation queries the response was YES. [2021-03-25 04:50:54,855 INFO L84 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 108 events. 38/108 cut-off events. For 265/283 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 394 event pairs, 11 based on Foata normal form. 3/94 useless extension candidates. Maximal degree in co-relation 356. Up to 41 conditions per place. [2021-03-25 04:50:54,856 INFO L142 LiptonReduction]: Number of co-enabled transitions 538 [2021-03-25 04:50:54,858 INFO L154 LiptonReduction]: Checked pairs total: 337 [2021-03-25 04:50:54,858 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:50:54,858 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 18 [2021-03-25 04:50:54,859 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 38 transitions, 200 flow [2021-03-25 04:50:54,859 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 0 states have call successors, (0), 0 states 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 04:50:54,860 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:50:54,860 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:50:54,860 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 04:50:54,860 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:50:54,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:50:54,860 INFO L82 PathProgramCache]: Analyzing trace with hash 1471128021, now seen corresponding path program 2 times [2021-03-25 04:50:54,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:50:54,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250820188] [2021-03-25 04:50:54,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:50:54,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:50:54,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:54,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:50:54,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:54,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 04:50:54,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:54,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 04:50:54,964 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 04:50:54,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250820188] [2021-03-25 04:50:54,964 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:50:54,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:50:54,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057392101] [2021-03-25 04:50:54,964 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:50:54,964 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:50:54,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:50:54,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:50:54,965 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 198 [2021-03-25 04:50:54,965 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 38 transitions, 200 flow. Second operand has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 0 states have call successors, (0), 0 states 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 04:50:54,966 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:50:54,966 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 198 [2021-03-25 04:50:54,966 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:50:54,997 INFO L129 PetriNetUnfolder]: 38/115 cut-off events. [2021-03-25 04:50:54,997 INFO L130 PetriNetUnfolder]: For 255/270 co-relation queries the response was YES. [2021-03-25 04:50:54,998 INFO L84 FinitePrefix]: Finished finitePrefix Result has 406 conditions, 115 events. 38/115 cut-off events. For 255/270 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 408 event pairs, 9 based on Foata normal form. 1/106 useless extension candidates. Maximal degree in co-relation 386. Up to 54 conditions per place. [2021-03-25 04:50:54,998 INFO L132 encePairwiseOnDemand]: 195/198 looper letters, 13 selfloop transitions, 6 changer transitions 0/39 dead transitions. [2021-03-25 04:50:54,999 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 39 transitions, 244 flow [2021-03-25 04:50:54,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:50:54,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:50:55,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 486 transitions. [2021-03-25 04:50:55,000 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8181818181818182 [2021-03-25 04:50:55,000 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 486 transitions. [2021-03-25 04:50:55,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 486 transitions. [2021-03-25 04:50:55,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:50:55,001 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 486 transitions. [2021-03-25 04:50:55,001 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 162.0) internal successors, (486), 3 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:50:55,002 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states 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 04:50:55,002 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states 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 04:50:55,003 INFO L185 Difference]: Start difference. First operand has 51 places, 38 transitions, 200 flow. Second operand 3 states and 486 transitions. [2021-03-25 04:50:55,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 39 transitions, 244 flow [2021-03-25 04:50:55,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 39 transitions, 229 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-25 04:50:55,005 INFO L241 Difference]: Finished difference. Result has 52 places, 38 transitions, 205 flow [2021-03-25 04:50:55,005 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=205, PETRI_PLACES=52, PETRI_TRANSITIONS=38} [2021-03-25 04:50:55,006 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, -2 predicate places. [2021-03-25 04:50:55,006 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:50:55,006 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 38 transitions, 205 flow [2021-03-25 04:50:55,006 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 38 transitions, 205 flow [2021-03-25 04:50:55,006 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 52 places, 38 transitions, 205 flow [2021-03-25 04:50:55,018 INFO L129 PetriNetUnfolder]: 31/98 cut-off events. [2021-03-25 04:50:55,019 INFO L130 PetriNetUnfolder]: For 283/300 co-relation queries the response was YES. [2021-03-25 04:50:55,019 INFO L84 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 98 events. 31/98 cut-off events. For 283/300 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 356 event pairs, 9 based on Foata normal form. 3/86 useless extension candidates. Maximal degree in co-relation 343. Up to 37 conditions per place. [2021-03-25 04:50:55,020 INFO L142 LiptonReduction]: Number of co-enabled transitions 538 [2021-03-25 04:50:55,023 INFO L154 LiptonReduction]: Checked pairs total: 322 [2021-03-25 04:50:55,023 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:50:55,023 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 17 [2021-03-25 04:50:55,029 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 38 transitions, 205 flow [2021-03-25 04:50:55,029 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 0 states have call successors, (0), 0 states 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 04:50:55,029 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:50:55,029 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:50:55,029 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 04:50:55,030 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:50:55,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:50:55,030 INFO L82 PathProgramCache]: Analyzing trace with hash -571244090, now seen corresponding path program 1 times [2021-03-25 04:50:55,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:50:55,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332992664] [2021-03-25 04:50:55,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:50:55,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:50:55,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:55,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 04:50:55,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:55,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 04:50:55,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:55,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:50:55,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:55,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:50:55,099 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 04:50:55,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332992664] [2021-03-25 04:50:55,099 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:50:55,099 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:50:55,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337997551] [2021-03-25 04:50:55,100 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:50:55,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:50:55,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:50:55,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:50:55,101 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 198 [2021-03-25 04:50:55,101 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 38 transitions, 205 flow. Second operand has 5 states, 5 states have (on average 157.0) internal successors, (785), 5 states have internal predecessors, (785), 0 states have call successors, (0), 0 states 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 04:50:55,101 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:50:55,101 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 198 [2021-03-25 04:50:55,101 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:50:55,158 INFO L129 PetriNetUnfolder]: 41/120 cut-off events. [2021-03-25 04:50:55,159 INFO L130 PetriNetUnfolder]: For 290/305 co-relation queries the response was YES. [2021-03-25 04:50:55,159 INFO L84 FinitePrefix]: Finished finitePrefix Result has 445 conditions, 120 events. 41/120 cut-off events. For 290/305 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 428 event pairs, 7 based on Foata normal form. 4/114 useless extension candidates. Maximal degree in co-relation 424. Up to 57 conditions per place. [2021-03-25 04:50:55,161 INFO L132 encePairwiseOnDemand]: 191/198 looper letters, 11 selfloop transitions, 11 changer transitions 0/42 dead transitions. [2021-03-25 04:50:55,161 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 42 transitions, 271 flow [2021-03-25 04:50:55,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:50:55,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:50:55,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 797 transitions. [2021-03-25 04:50:55,165 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.805050505050505 [2021-03-25 04:50:55,165 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 797 transitions. [2021-03-25 04:50:55,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 797 transitions. [2021-03-25 04:50:55,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:50:55,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 797 transitions. [2021-03-25 04:50:55,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 159.4) internal successors, (797), 5 states have internal predecessors, (797), 0 states have call successors, (0), 0 states 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 04:50:55,170 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states 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 04:50:55,170 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states 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 04:50:55,170 INFO L185 Difference]: Start difference. First operand has 52 places, 38 transitions, 205 flow. Second operand 5 states and 797 transitions. [2021-03-25 04:50:55,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 42 transitions, 271 flow [2021-03-25 04:50:55,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 42 transitions, 257 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-25 04:50:55,175 INFO L241 Difference]: Finished difference. Result has 55 places, 41 transitions, 241 flow [2021-03-25 04:50:55,175 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=241, PETRI_PLACES=55, PETRI_TRANSITIONS=41} [2021-03-25 04:50:55,175 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 1 predicate places. [2021-03-25 04:50:55,175 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:50:55,175 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 41 transitions, 241 flow [2021-03-25 04:50:55,175 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 41 transitions, 241 flow [2021-03-25 04:50:55,175 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 41 transitions, 241 flow [2021-03-25 04:50:55,186 INFO L129 PetriNetUnfolder]: 38/108 cut-off events. [2021-03-25 04:50:55,187 INFO L130 PetriNetUnfolder]: For 291/310 co-relation queries the response was YES. [2021-03-25 04:50:55,187 INFO L84 FinitePrefix]: Finished finitePrefix Result has 409 conditions, 108 events. 38/108 cut-off events. For 291/310 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 397 event pairs, 8 based on Foata normal form. 3/97 useless extension candidates. Maximal degree in co-relation 389. Up to 47 conditions per place. [2021-03-25 04:50:55,188 INFO L142 LiptonReduction]: Number of co-enabled transitions 590 [2021-03-25 04:50:55,190 INFO L154 LiptonReduction]: Checked pairs total: 396 [2021-03-25 04:50:55,191 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:50:55,191 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-03-25 04:50:55,191 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 41 transitions, 241 flow [2021-03-25 04:50:55,191 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 157.0) internal successors, (785), 5 states have internal predecessors, (785), 0 states have call successors, (0), 0 states 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 04:50:55,191 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:50:55,191 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:50:55,191 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 04:50:55,191 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:50:55,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:50:55,192 INFO L82 PathProgramCache]: Analyzing trace with hash 141896290, now seen corresponding path program 2 times [2021-03-25 04:50:55,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:50:55,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912202011] [2021-03-25 04:50:55,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:50:55,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:50:55,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:55,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 04:50:55,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:55,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:50:55,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:55,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 04:50:55,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:55,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 04:50:55,265 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 04:50:55,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912202011] [2021-03-25 04:50:55,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:50:55,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:50:55,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744954117] [2021-03-25 04:50:55,266 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:50:55,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:50:55,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:50:55,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:50:55,267 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 198 [2021-03-25 04:50:55,267 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 41 transitions, 241 flow. Second operand has 6 states, 6 states have (on average 152.83333333333334) internal successors, (917), 6 states have internal predecessors, (917), 0 states have call successors, (0), 0 states 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 04:50:55,267 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:50:55,268 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 198 [2021-03-25 04:50:55,268 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:50:55,372 INFO L129 PetriNetUnfolder]: 36/111 cut-off events. [2021-03-25 04:50:55,373 INFO L130 PetriNetUnfolder]: For 331/346 co-relation queries the response was YES. [2021-03-25 04:50:55,373 INFO L84 FinitePrefix]: Finished finitePrefix Result has 440 conditions, 111 events. 36/111 cut-off events. For 331/346 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 393 event pairs, 6 based on Foata normal form. 8/111 useless extension candidates. Maximal degree in co-relation 418. Up to 44 conditions per place. [2021-03-25 04:50:55,374 INFO L132 encePairwiseOnDemand]: 191/198 looper letters, 11 selfloop transitions, 16 changer transitions 0/47 dead transitions. [2021-03-25 04:50:55,374 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 47 transitions, 339 flow [2021-03-25 04:50:55,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 04:50:55,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 04:50:55,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1088 transitions. [2021-03-25 04:50:55,377 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.784992784992785 [2021-03-25 04:50:55,377 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1088 transitions. [2021-03-25 04:50:55,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1088 transitions. [2021-03-25 04:50:55,377 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:50:55,377 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1088 transitions. [2021-03-25 04:50:55,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 155.42857142857142) internal successors, (1088), 7 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states 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 04:50:55,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 198.0) internal successors, (1584), 8 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states 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 04:50:55,381 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 198.0) internal successors, (1584), 8 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states 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 04:50:55,381 INFO L185 Difference]: Start difference. First operand has 55 places, 41 transitions, 241 flow. Second operand 7 states and 1088 transitions. [2021-03-25 04:50:55,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 47 transitions, 339 flow [2021-03-25 04:50:55,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 47 transitions, 311 flow, removed 5 selfloop flow, removed 3 redundant places. [2021-03-25 04:50:55,383 INFO L241 Difference]: Finished difference. Result has 60 places, 45 transitions, 291 flow [2021-03-25 04:50:55,383 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=291, PETRI_PLACES=60, PETRI_TRANSITIONS=45} [2021-03-25 04:50:55,383 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 6 predicate places. [2021-03-25 04:50:55,384 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:50:55,384 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 45 transitions, 291 flow [2021-03-25 04:50:55,384 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 45 transitions, 291 flow [2021-03-25 04:50:55,384 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 45 transitions, 291 flow [2021-03-25 04:50:55,393 INFO L129 PetriNetUnfolder]: 30/96 cut-off events. [2021-03-25 04:50:55,394 INFO L130 PetriNetUnfolder]: For 343/359 co-relation queries the response was YES. [2021-03-25 04:50:55,394 INFO L84 FinitePrefix]: Finished finitePrefix Result has 389 conditions, 96 events. 30/96 cut-off events. For 343/359 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 339 event pairs, 7 based on Foata normal form. 3/89 useless extension candidates. Maximal degree in co-relation 367. Up to 36 conditions per place. [2021-03-25 04:50:55,395 INFO L142 LiptonReduction]: Number of co-enabled transitions 660 [2021-03-25 04:50:55,398 INFO L154 LiptonReduction]: Checked pairs total: 485 [2021-03-25 04:50:55,398 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:50:55,398 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-03-25 04:50:55,398 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 45 transitions, 291 flow [2021-03-25 04:50:55,399 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 152.83333333333334) internal successors, (917), 6 states have internal predecessors, (917), 0 states have call successors, (0), 0 states 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 04:50:55,399 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:50:55,399 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:50:55,399 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-25 04:50:55,399 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:50:55,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:50:55,400 INFO L82 PathProgramCache]: Analyzing trace with hash -568086244, now seen corresponding path program 1 times [2021-03-25 04:50:55,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:50:55,401 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143805146] [2021-03-25 04:50:55,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:50:55,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:50:55,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:55,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:50:55,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:55,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:50:55,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:55,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 04:50:55,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:55,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:50:55,460 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 04:50:55,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143805146] [2021-03-25 04:50:55,461 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:50:55,461 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:50:55,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868896629] [2021-03-25 04:50:55,461 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:50:55,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:50:55,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:50:55,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:50:55,462 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 198 [2021-03-25 04:50:55,463 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 45 transitions, 291 flow. Second operand has 5 states, 5 states have (on average 157.0) internal successors, (785), 5 states have internal predecessors, (785), 0 states have call successors, (0), 0 states 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 04:50:55,463 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:50:55,463 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 198 [2021-03-25 04:50:55,463 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:50:55,542 INFO L129 PetriNetUnfolder]: 46/142 cut-off events. [2021-03-25 04:50:55,542 INFO L130 PetriNetUnfolder]: For 629/644 co-relation queries the response was YES. [2021-03-25 04:50:55,543 INFO L84 FinitePrefix]: Finished finitePrefix Result has 676 conditions, 142 events. 46/142 cut-off events. For 629/644 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 565 event pairs, 8 based on Foata normal form. 4/132 useless extension candidates. Maximal degree in co-relation 652. Up to 62 conditions per place. [2021-03-25 04:50:55,543 INFO L132 encePairwiseOnDemand]: 191/198 looper letters, 19 selfloop transitions, 16 changer transitions 0/55 dead transitions. [2021-03-25 04:50:55,543 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 55 transitions, 463 flow [2021-03-25 04:50:55,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:50:55,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:50:55,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 797 transitions. [2021-03-25 04:50:55,545 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.805050505050505 [2021-03-25 04:50:55,546 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 797 transitions. [2021-03-25 04:50:55,546 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 797 transitions. [2021-03-25 04:50:55,546 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:50:55,546 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 797 transitions. [2021-03-25 04:50:55,547 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 159.4) internal successors, (797), 5 states have internal predecessors, (797), 0 states have call successors, (0), 0 states 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 04:50:55,548 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states 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 04:50:55,549 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states 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 04:50:55,549 INFO L185 Difference]: Start difference. First operand has 60 places, 45 transitions, 291 flow. Second operand 5 states and 797 transitions. [2021-03-25 04:50:55,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 55 transitions, 463 flow [2021-03-25 04:50:55,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 55 transitions, 427 flow, removed 9 selfloop flow, removed 4 redundant places. [2021-03-25 04:50:55,552 INFO L241 Difference]: Finished difference. Result has 62 places, 51 transitions, 384 flow [2021-03-25 04:50:55,552 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=263, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=384, PETRI_PLACES=62, PETRI_TRANSITIONS=51} [2021-03-25 04:50:55,553 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 8 predicate places. [2021-03-25 04:50:55,553 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:50:55,553 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 51 transitions, 384 flow [2021-03-25 04:50:55,553 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 51 transitions, 384 flow [2021-03-25 04:50:55,553 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 51 transitions, 384 flow [2021-03-25 04:50:55,567 INFO L129 PetriNetUnfolder]: 44/131 cut-off events. [2021-03-25 04:50:55,567 INFO L130 PetriNetUnfolder]: For 642/660 co-relation queries the response was YES. [2021-03-25 04:50:55,567 INFO L84 FinitePrefix]: Finished finitePrefix Result has 647 conditions, 131 events. 44/131 cut-off events. For 642/660 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 531 event pairs, 8 based on Foata normal form. 4/120 useless extension candidates. Maximal degree in co-relation 624. Up to 60 conditions per place. [2021-03-25 04:50:55,569 INFO L142 LiptonReduction]: Number of co-enabled transitions 760 [2021-03-25 04:50:55,572 INFO L154 LiptonReduction]: Checked pairs total: 704 [2021-03-25 04:50:55,573 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:50:55,573 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20 [2021-03-25 04:50:55,574 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 51 transitions, 384 flow [2021-03-25 04:50:55,574 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 157.0) internal successors, (785), 5 states have internal predecessors, (785), 0 states have call successors, (0), 0 states 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 04:50:55,574 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:50:55,574 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 04:50:55,574 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-25 04:50:55,574 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:50:55,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:50:55,575 INFO L82 PathProgramCache]: Analyzing trace with hash 727224829, now seen corresponding path program 1 times [2021-03-25 04:50:55,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:50:55,575 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209158911] [2021-03-25 04:50:55,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:50:55,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:50:55,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:55,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 04:50:55,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:55,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 04:50:55,637 INFO L142 QuantifierPusher]: treesize reduction 10, result has 85.7 percent of original size [2021-03-25 04:50:55,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-03-25 04:50:55,657 INFO L142 QuantifierPusher]: treesize reduction 10, result has 86.3 percent of original size [2021-03-25 04:50:55,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-25 04:50:55,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:55,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 04:50:55,699 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 04:50:55,699 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209158911] [2021-03-25 04:50:55,699 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:50:55,699 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:50:55,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553458791] [2021-03-25 04:50:55,699 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:50:55,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:50:55,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:50:55,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:50:55,700 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 198 [2021-03-25 04:50:55,701 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 384 flow. Second operand has 6 states, 6 states have (on average 151.0) internal successors, (906), 6 states have internal predecessors, (906), 0 states have call successors, (0), 0 states 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 04:50:55,701 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:50:55,701 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 198 [2021-03-25 04:50:55,701 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:50:55,798 INFO L129 PetriNetUnfolder]: 36/137 cut-off events. [2021-03-25 04:50:55,799 INFO L130 PetriNetUnfolder]: For 853/876 co-relation queries the response was YES. [2021-03-25 04:50:55,799 INFO L84 FinitePrefix]: Finished finitePrefix Result has 656 conditions, 137 events. 36/137 cut-off events. For 853/876 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 598 event pairs, 6 based on Foata normal form. 7/136 useless extension candidates. Maximal degree in co-relation 631. Up to 55 conditions per place. [2021-03-25 04:50:55,800 INFO L132 encePairwiseOnDemand]: 193/198 looper letters, 21 selfloop transitions, 12 changer transitions 0/53 dead transitions. [2021-03-25 04:50:55,800 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 53 transitions, 457 flow [2021-03-25 04:50:55,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:50:55,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:50:55,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 765 transitions. [2021-03-25 04:50:55,802 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7727272727272727 [2021-03-25 04:50:55,802 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 765 transitions. [2021-03-25 04:50:55,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 765 transitions. [2021-03-25 04:50:55,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:50:55,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 765 transitions. [2021-03-25 04:50:55,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 153.0) internal successors, (765), 5 states have internal predecessors, (765), 0 states have call successors, (0), 0 states 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 04:50:55,805 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states 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 04:50:55,806 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states 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 04:50:55,806 INFO L185 Difference]: Start difference. First operand has 62 places, 51 transitions, 384 flow. Second operand 5 states and 765 transitions. [2021-03-25 04:50:55,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 53 transitions, 457 flow [2021-03-25 04:50:55,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 53 transitions, 444 flow, removed 6 selfloop flow, removed 1 redundant places. [2021-03-25 04:50:55,808 INFO L241 Difference]: Finished difference. Result has 66 places, 51 transitions, 394 flow [2021-03-25 04:50:55,808 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=394, PETRI_PLACES=66, PETRI_TRANSITIONS=51} [2021-03-25 04:50:55,809 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 12 predicate places. [2021-03-25 04:50:55,809 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:50:55,809 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 51 transitions, 394 flow [2021-03-25 04:50:55,809 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 51 transitions, 394 flow [2021-03-25 04:50:55,810 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 51 transitions, 394 flow [2021-03-25 04:50:55,822 INFO L129 PetriNetUnfolder]: 34/125 cut-off events. [2021-03-25 04:50:55,822 INFO L130 PetriNetUnfolder]: For 552/568 co-relation queries the response was YES. [2021-03-25 04:50:55,823 INFO L84 FinitePrefix]: Finished finitePrefix Result has 570 conditions, 125 events. 34/125 cut-off events. For 552/568 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 541 event pairs, 9 based on Foata normal form. 3/119 useless extension candidates. Maximal degree in co-relation 545. Up to 53 conditions per place. [2021-03-25 04:50:55,824 INFO L142 LiptonReduction]: Number of co-enabled transitions 764 [2021-03-25 04:50:55,828 INFO L154 LiptonReduction]: Checked pairs total: 713 [2021-03-25 04:50:55,828 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:50:55,828 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 19 [2021-03-25 04:50:55,828 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 51 transitions, 394 flow [2021-03-25 04:50:55,829 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 151.0) internal successors, (906), 6 states have internal predecessors, (906), 0 states have call successors, (0), 0 states 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 04:50:55,829 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:50:55,829 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:50:55,829 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-25 04:50:55,829 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:50:55,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:50:55,829 INFO L82 PathProgramCache]: Analyzing trace with hash -1639668514, now seen corresponding path program 2 times [2021-03-25 04:50:55,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:50:55,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692331514] [2021-03-25 04:50:55,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:50:55,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:50:55,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:55,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 04:50:55,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:55,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 04:50:55,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:55,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 04:50:55,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:55,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 04:50:55,921 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 04:50:55,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692331514] [2021-03-25 04:50:55,921 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:50:55,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:50:55,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830684422] [2021-03-25 04:50:55,921 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:50:55,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:50:55,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:50:55,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:50:55,922 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 198 [2021-03-25 04:50:55,923 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 51 transitions, 394 flow. Second operand has 6 states, 6 states have (on average 149.83333333333334) internal successors, (899), 6 states have internal predecessors, (899), 0 states have call successors, (0), 0 states 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 04:50:55,923 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:50:55,923 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 198 [2021-03-25 04:50:55,923 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:50:55,994 INFO L129 PetriNetUnfolder]: 37/144 cut-off events. [2021-03-25 04:50:55,994 INFO L130 PetriNetUnfolder]: For 701/724 co-relation queries the response was YES. [2021-03-25 04:50:55,995 INFO L84 FinitePrefix]: Finished finitePrefix Result has 702 conditions, 144 events. 37/144 cut-off events. For 701/724 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 655 event pairs, 5 based on Foata normal form. 2/138 useless extension candidates. Maximal degree in co-relation 675. Up to 60 conditions per place. [2021-03-25 04:50:55,995 INFO L132 encePairwiseOnDemand]: 193/198 looper letters, 19 selfloop transitions, 17 changer transitions 0/56 dead transitions. [2021-03-25 04:50:55,995 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 56 transitions, 514 flow [2021-03-25 04:50:55,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:50:55,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:50:55,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 612 transitions. [2021-03-25 04:50:55,997 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7727272727272727 [2021-03-25 04:50:55,997 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 612 transitions. [2021-03-25 04:50:55,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 612 transitions. [2021-03-25 04:50:55,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:50:55,998 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 612 transitions. [2021-03-25 04:50:55,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states 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 04:50:56,000 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 198.0) internal successors, (990), 5 states have internal predecessors, (990), 0 states have call successors, (0), 0 states 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 04:50:56,000 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 198.0) internal successors, (990), 5 states have internal predecessors, (990), 0 states have call successors, (0), 0 states 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 04:50:56,000 INFO L185 Difference]: Start difference. First operand has 66 places, 51 transitions, 394 flow. Second operand 4 states and 612 transitions. [2021-03-25 04:50:56,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 56 transitions, 514 flow [2021-03-25 04:50:56,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 56 transitions, 503 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-03-25 04:50:56,004 INFO L241 Difference]: Finished difference. Result has 68 places, 53 transitions, 460 flow [2021-03-25 04:50:56,004 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=383, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=460, PETRI_PLACES=68, PETRI_TRANSITIONS=53} [2021-03-25 04:50:56,005 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 14 predicate places. [2021-03-25 04:50:56,005 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:50:56,005 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 53 transitions, 460 flow [2021-03-25 04:50:56,005 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 53 transitions, 460 flow [2021-03-25 04:50:56,005 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 53 transitions, 460 flow [2021-03-25 04:50:56,019 INFO L129 PetriNetUnfolder]: 35/133 cut-off events. [2021-03-25 04:50:56,019 INFO L130 PetriNetUnfolder]: For 913/939 co-relation queries the response was YES. [2021-03-25 04:50:56,020 INFO L84 FinitePrefix]: Finished finitePrefix Result has 653 conditions, 133 events. 35/133 cut-off events. For 913/939 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 611 event pairs, 7 based on Foata normal form. 4/128 useless extension candidates. Maximal degree in co-relation 627. Up to 57 conditions per place. [2021-03-25 04:50:56,021 INFO L142 LiptonReduction]: Number of co-enabled transitions 802 [2021-03-25 04:50:56,025 INFO L154 LiptonReduction]: Checked pairs total: 821 [2021-03-25 04:50:56,025 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:50:56,025 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20 [2021-03-25 04:50:56,026 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 53 transitions, 460 flow [2021-03-25 04:50:56,027 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 149.83333333333334) internal successors, (899), 6 states have internal predecessors, (899), 0 states have call successors, (0), 0 states 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 04:50:56,027 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:50:56,027 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:50:56,027 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-25 04:50:56,027 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:50:56,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:50:56,027 INFO L82 PathProgramCache]: Analyzing trace with hash -578432370, now seen corresponding path program 1 times [2021-03-25 04:50:56,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:50:56,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057946551] [2021-03-25 04:50:56,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:50:56,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:50:56,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:56,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:50:56,057 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 04:50:56,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057946551] [2021-03-25 04:50:56,057 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:50:56,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-25 04:50:56,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101292949] [2021-03-25 04:50:56,058 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:50:56,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:50:56,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:50:56,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:50:56,059 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 198 [2021-03-25 04:50:56,059 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 53 transitions, 460 flow. Second operand has 3 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:50:56,059 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:50:56,059 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 198 [2021-03-25 04:50:56,059 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:50:56,098 INFO L129 PetriNetUnfolder]: 99/318 cut-off events. [2021-03-25 04:50:56,098 INFO L130 PetriNetUnfolder]: For 2754/2836 co-relation queries the response was YES. [2021-03-25 04:50:56,099 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1609 conditions, 318 events. 99/318 cut-off events. For 2754/2836 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 2050 event pairs, 24 based on Foata normal form. 5/298 useless extension candidates. Maximal degree in co-relation 1581. Up to 147 conditions per place. [2021-03-25 04:50:56,101 INFO L132 encePairwiseOnDemand]: 194/198 looper letters, 3 selfloop transitions, 3 changer transitions 0/55 dead transitions. [2021-03-25 04:50:56,101 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 55 transitions, 476 flow [2021-03-25 04:50:56,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:50:56,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:50:56,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 526 transitions. [2021-03-25 04:50:56,103 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8855218855218855 [2021-03-25 04:50:56,103 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 526 transitions. [2021-03-25 04:50:56,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 526 transitions. [2021-03-25 04:50:56,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:50:56,103 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 526 transitions. [2021-03-25 04:50:56,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 175.33333333333334) internal successors, (526), 3 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:50:56,104 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states 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 04:50:56,105 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states 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 04:50:56,105 INFO L185 Difference]: Start difference. First operand has 68 places, 53 transitions, 460 flow. Second operand 3 states and 526 transitions. [2021-03-25 04:50:56,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 55 transitions, 476 flow [2021-03-25 04:50:56,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 55 transitions, 438 flow, removed 4 selfloop flow, removed 4 redundant places. [2021-03-25 04:50:56,110 INFO L241 Difference]: Finished difference. Result has 67 places, 55 transitions, 441 flow [2021-03-25 04:50:56,111 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=422, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=441, PETRI_PLACES=67, PETRI_TRANSITIONS=55} [2021-03-25 04:50:56,111 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 13 predicate places. [2021-03-25 04:50:56,111 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:50:56,111 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 55 transitions, 441 flow [2021-03-25 04:50:56,111 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 55 transitions, 441 flow [2021-03-25 04:50:56,111 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 55 transitions, 441 flow [2021-03-25 04:50:56,128 INFO L129 PetriNetUnfolder]: 44/162 cut-off events. [2021-03-25 04:50:56,128 INFO L130 PetriNetUnfolder]: For 750/781 co-relation queries the response was YES. [2021-03-25 04:50:56,129 INFO L84 FinitePrefix]: Finished finitePrefix Result has 749 conditions, 162 events. 44/162 cut-off events. For 750/781 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 826 event pairs, 14 based on Foata normal form. 5/148 useless extension candidates. Maximal degree in co-relation 724. Up to 70 conditions per place. [2021-03-25 04:50:56,130 INFO L142 LiptonReduction]: Number of co-enabled transitions 840 [2021-03-25 04:50:56,134 INFO L154 LiptonReduction]: Checked pairs total: 687 [2021-03-25 04:50:56,135 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:50:56,135 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 24 [2021-03-25 04:50:56,135 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 55 transitions, 441 flow [2021-03-25 04:50:56,135 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:50:56,135 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:50:56,135 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:50:56,135 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-25 04:50:56,135 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:50:56,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:50:56,136 INFO L82 PathProgramCache]: Analyzing trace with hash 1872254258, now seen corresponding path program 1 times [2021-03-25 04:50:56,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:50:56,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380030444] [2021-03-25 04:50:56,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:50:56,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:50:56,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:56,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:50:56,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:56,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:50:56,162 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 04:50:56,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380030444] [2021-03-25 04:50:56,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:50:56,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:50:56,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104617864] [2021-03-25 04:50:56,162 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:50:56,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:50:56,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:50:56,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:50:56,163 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 198 [2021-03-25 04:50:56,163 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 55 transitions, 441 flow. Second operand has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states 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 04:50:56,163 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:50:56,163 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 198 [2021-03-25 04:50:56,163 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:50:56,204 INFO L129 PetriNetUnfolder]: 87/324 cut-off events. [2021-03-25 04:50:56,205 INFO L130 PetriNetUnfolder]: For 2078/2217 co-relation queries the response was YES. [2021-03-25 04:50:56,206 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1462 conditions, 324 events. 87/324 cut-off events. For 2078/2217 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2200 event pairs, 22 based on Foata normal form. 11/312 useless extension candidates. Maximal degree in co-relation 1435. Up to 145 conditions per place. [2021-03-25 04:50:56,208 INFO L132 encePairwiseOnDemand]: 195/198 looper letters, 3 selfloop transitions, 3 changer transitions 0/55 dead transitions. [2021-03-25 04:50:56,208 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 55 transitions, 453 flow [2021-03-25 04:50:56,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:50:56,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:50:56,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 525 transitions. [2021-03-25 04:50:56,209 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8838383838383839 [2021-03-25 04:50:56,209 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 525 transitions. [2021-03-25 04:50:56,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 525 transitions. [2021-03-25 04:50:56,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:50:56,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 525 transitions. [2021-03-25 04:50:56,211 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 0 states have call successors, (0), 0 states 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 04:50:56,211 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states 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 04:50:56,211 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states 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 04:50:56,212 INFO L185 Difference]: Start difference. First operand has 67 places, 55 transitions, 441 flow. Second operand 3 states and 525 transitions. [2021-03-25 04:50:56,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 55 transitions, 453 flow [2021-03-25 04:50:56,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 55 transitions, 445 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-25 04:50:56,216 INFO L241 Difference]: Finished difference. Result has 68 places, 55 transitions, 444 flow [2021-03-25 04:50:56,216 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=433, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=444, PETRI_PLACES=68, PETRI_TRANSITIONS=55} [2021-03-25 04:50:56,216 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 14 predicate places. [2021-03-25 04:50:56,216 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:50:56,216 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 55 transitions, 444 flow [2021-03-25 04:50:56,216 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 55 transitions, 444 flow [2021-03-25 04:50:56,217 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 55 transitions, 444 flow [2021-03-25 04:50:56,241 INFO L129 PetriNetUnfolder]: 63/240 cut-off events. [2021-03-25 04:50:56,241 INFO L130 PetriNetUnfolder]: For 1156/1195 co-relation queries the response was YES. [2021-03-25 04:50:56,242 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1082 conditions, 240 events. 63/240 cut-off events. For 1156/1195 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1465 event pairs, 18 based on Foata normal form. 6/227 useless extension candidates. Maximal degree in co-relation 1057. Up to 105 conditions per place. [2021-03-25 04:50:56,245 INFO L142 LiptonReduction]: Number of co-enabled transitions 840 [2021-03-25 04:50:56,253 INFO L154 LiptonReduction]: Checked pairs total: 775 [2021-03-25 04:50:56,253 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:50:56,253 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 37 [2021-03-25 04:50:56,253 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 55 transitions, 444 flow [2021-03-25 04:50:56,253 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states 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 04:50:56,253 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:50:56,254 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:50:56,254 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-25 04:50:56,254 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:50:56,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:50:56,254 INFO L82 PathProgramCache]: Analyzing trace with hash 2131600319, now seen corresponding path program 1 times [2021-03-25 04:50:56,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:50:56,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067354924] [2021-03-25 04:50:56,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:50:56,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:50:56,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:56,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 04:50:56,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:56,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 04:50:56,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:56,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 04:50:56,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:56,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 04:50:56,358 INFO L142 QuantifierPusher]: treesize reduction 10, result has 82.8 percent of original size [2021-03-25 04:50:56,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-25 04:50:56,378 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 04:50:56,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067354924] [2021-03-25 04:50:56,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:50:56,378 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 04:50:56,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017016876] [2021-03-25 04:50:56,378 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 04:50:56,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:50:56,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 04:50:56,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-25 04:50:56,380 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 198 [2021-03-25 04:50:56,381 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 55 transitions, 444 flow. Second operand has 7 states, 7 states have (on average 147.85714285714286) internal successors, (1035), 7 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states 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 04:50:56,381 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:50:56,381 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 198 [2021-03-25 04:50:56,381 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:50:56,505 INFO L129 PetriNetUnfolder]: 82/311 cut-off events. [2021-03-25 04:50:56,505 INFO L130 PetriNetUnfolder]: For 1789/1856 co-relation queries the response was YES. [2021-03-25 04:50:56,506 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1565 conditions, 311 events. 82/311 cut-off events. For 1789/1856 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 2048 event pairs, 9 based on Foata normal form. 13/304 useless extension candidates. Maximal degree in co-relation 1538. Up to 138 conditions per place. [2021-03-25 04:50:56,508 INFO L132 encePairwiseOnDemand]: 192/198 looper letters, 16 selfloop transitions, 20 changer transitions 0/58 dead transitions. [2021-03-25 04:50:56,508 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 58 transitions, 543 flow [2021-03-25 04:50:56,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:50:56,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:50:56,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 752 transitions. [2021-03-25 04:50:56,510 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7595959595959596 [2021-03-25 04:50:56,510 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 752 transitions. [2021-03-25 04:50:56,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 752 transitions. [2021-03-25 04:50:56,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:50:56,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 752 transitions. [2021-03-25 04:50:56,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 150.4) internal successors, (752), 5 states have internal predecessors, (752), 0 states have call successors, (0), 0 states 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 04:50:56,512 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states 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 04:50:56,513 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states 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 04:50:56,513 INFO L185 Difference]: Start difference. First operand has 68 places, 55 transitions, 444 flow. Second operand 5 states and 752 transitions. [2021-03-25 04:50:56,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 58 transitions, 543 flow [2021-03-25 04:50:56,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 58 transitions, 538 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-25 04:50:56,517 INFO L241 Difference]: Finished difference. Result has 72 places, 55 transitions, 498 flow [2021-03-25 04:50:56,517 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=439, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=498, PETRI_PLACES=72, PETRI_TRANSITIONS=55} [2021-03-25 04:50:56,517 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 18 predicate places. [2021-03-25 04:50:56,517 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:50:56,517 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 55 transitions, 498 flow [2021-03-25 04:50:56,518 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 55 transitions, 498 flow [2021-03-25 04:50:56,518 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 55 transitions, 498 flow [2021-03-25 04:50:56,539 INFO L129 PetriNetUnfolder]: 57/225 cut-off events. [2021-03-25 04:50:56,540 INFO L130 PetriNetUnfolder]: For 1636/1691 co-relation queries the response was YES. [2021-03-25 04:50:56,541 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1094 conditions, 225 events. 57/225 cut-off events. For 1636/1691 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1344 event pairs, 14 based on Foata normal form. 6/215 useless extension candidates. Maximal degree in co-relation 1067. Up to 97 conditions per place. [2021-03-25 04:50:56,543 INFO L142 LiptonReduction]: Number of co-enabled transitions 838 [2021-03-25 04:50:57,129 WARN L205 SmtUtils]: Spent 584.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 184 [2021-03-25 04:50:57,327 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-03-25 04:50:58,595 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 338 DAG size of output: 266 [2021-03-25 04:50:59,126 WARN L205 SmtUtils]: Spent 528.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2021-03-25 04:50:59,139 INFO L154 LiptonReduction]: Checked pairs total: 1317 [2021-03-25 04:50:59,139 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 04:50:59,139 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2622 [2021-03-25 04:50:59,140 INFO L480 AbstractCegarLoop]: Abstraction has has 72 places, 55 transitions, 516 flow [2021-03-25 04:50:59,140 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 147.85714285714286) internal successors, (1035), 7 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states 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 04:50:59,140 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:50:59,140 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:50:59,140 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-25 04:50:59,140 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:50:59,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:50:59,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1381882605, now seen corresponding path program 1 times [2021-03-25 04:50:59,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:50:59,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981871670] [2021-03-25 04:50:59,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:50:59,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:50:59,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:59,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:50:59,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:59,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 04:50:59,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:59,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:50:59,171 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 04:50:59,171 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981871670] [2021-03-25 04:50:59,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:50:59,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:50:59,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329414568] [2021-03-25 04:50:59,171 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:50:59,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:50:59,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:50:59,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:50:59,172 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 199 [2021-03-25 04:50:59,173 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 55 transitions, 516 flow. Second operand has 4 states, 4 states have (on average 163.75) internal successors, (655), 4 states have internal predecessors, (655), 0 states have call successors, (0), 0 states 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 04:50:59,173 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:50:59,173 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 199 [2021-03-25 04:50:59,173 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:50:59,333 INFO L129 PetriNetUnfolder]: 828/1680 cut-off events. [2021-03-25 04:50:59,333 INFO L130 PetriNetUnfolder]: For 9845/10992 co-relation queries the response was YES. [2021-03-25 04:50:59,340 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5933 conditions, 1680 events. 828/1680 cut-off events. For 9845/10992 co-relation queries the response was YES. Maximal size of possible extension queue 323. Compared 13365 event pairs, 361 based on Foata normal form. 206/1620 useless extension candidates. Maximal degree in co-relation 5904. Up to 962 conditions per place. [2021-03-25 04:50:59,346 INFO L132 encePairwiseOnDemand]: 192/199 looper letters, 13 selfloop transitions, 10 changer transitions 0/65 dead transitions. [2021-03-25 04:50:59,346 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 65 transitions, 529 flow [2021-03-25 04:50:59,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:50:59,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:50:59,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 837 transitions. [2021-03-25 04:50:59,348 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8412060301507538 [2021-03-25 04:50:59,348 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 837 transitions. [2021-03-25 04:50:59,348 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 837 transitions. [2021-03-25 04:50:59,349 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:50:59,349 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 837 transitions. [2021-03-25 04:50:59,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 167.4) internal successors, (837), 5 states have internal predecessors, (837), 0 states have call successors, (0), 0 states 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 04:50:59,351 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 199.0) internal successors, (1194), 6 states have internal predecessors, (1194), 0 states have call successors, (0), 0 states 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 04:50:59,360 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 199.0) internal successors, (1194), 6 states have internal predecessors, (1194), 0 states have call successors, (0), 0 states 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 04:50:59,360 INFO L185 Difference]: Start difference. First operand has 72 places, 55 transitions, 516 flow. Second operand 5 states and 837 transitions. [2021-03-25 04:50:59,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 65 transitions, 529 flow [2021-03-25 04:50:59,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 65 transitions, 473 flow, removed 2 selfloop flow, removed 6 redundant places. [2021-03-25 04:50:59,368 INFO L241 Difference]: Finished difference. Result has 73 places, 61 transitions, 488 flow [2021-03-25 04:50:59,369 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=199, PETRI_DIFFERENCE_MINUEND_FLOW=401, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=488, PETRI_PLACES=73, PETRI_TRANSITIONS=61} [2021-03-25 04:50:59,369 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 19 predicate places. [2021-03-25 04:50:59,369 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:50:59,369 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 61 transitions, 488 flow [2021-03-25 04:50:59,369 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 61 transitions, 488 flow [2021-03-25 04:50:59,369 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 73 places, 61 transitions, 488 flow [2021-03-25 04:50:59,479 INFO L129 PetriNetUnfolder]: 789/1524 cut-off events. [2021-03-25 04:50:59,480 INFO L130 PetriNetUnfolder]: For 5122/6057 co-relation queries the response was YES. [2021-03-25 04:50:59,485 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6103 conditions, 1524 events. 789/1524 cut-off events. For 5122/6057 co-relation queries the response was YES. Maximal size of possible extension queue 284. Compared 11507 event pairs, 346 based on Foata normal form. 25/1288 useless extension candidates. Maximal degree in co-relation 6074. Up to 952 conditions per place. [2021-03-25 04:50:59,497 INFO L142 LiptonReduction]: Number of co-enabled transitions 1036 [2021-03-25 04:50:59,659 INFO L154 LiptonReduction]: Checked pairs total: 364 [2021-03-25 04:50:59,659 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:50:59,659 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 290 [2021-03-25 04:50:59,659 INFO L480 AbstractCegarLoop]: Abstraction has has 73 places, 61 transitions, 488 flow [2021-03-25 04:50:59,660 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 163.75) internal successors, (655), 4 states have internal predecessors, (655), 0 states have call successors, (0), 0 states 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 04:50:59,660 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:50:59,660 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:50:59,660 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-25 04:50:59,660 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:50:59,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:50:59,661 INFO L82 PathProgramCache]: Analyzing trace with hash 1345872882, now seen corresponding path program 1 times [2021-03-25 04:50:59,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:50:59,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206479466] [2021-03-25 04:50:59,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:50:59,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:50:59,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:59,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:50:59,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:59,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:50:59,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:59,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 04:50:59,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:50:59,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:50:59,716 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 04:50:59,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206479466] [2021-03-25 04:50:59,716 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:50:59,716 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:50:59,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824802857] [2021-03-25 04:50:59,717 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:50:59,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:50:59,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:50:59,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:50:59,718 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 199 [2021-03-25 04:50:59,718 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 61 transitions, 488 flow. Second operand has 5 states, 5 states have (on average 163.8) internal successors, (819), 5 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:50:59,718 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:50:59,718 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 199 [2021-03-25 04:50:59,718 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:50:59,912 INFO L129 PetriNetUnfolder]: 598/1274 cut-off events. [2021-03-25 04:50:59,912 INFO L130 PetriNetUnfolder]: For 5569/10265 co-relation queries the response was YES. [2021-03-25 04:50:59,918 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5646 conditions, 1274 events. 598/1274 cut-off events. For 5569/10265 co-relation queries the response was YES. Maximal size of possible extension queue 263. Compared 9715 event pairs, 95 based on Foata normal form. 372/1441 useless extension candidates. Maximal degree in co-relation 5615. Up to 907 conditions per place. [2021-03-25 04:50:59,922 INFO L132 encePairwiseOnDemand]: 192/199 looper letters, 13 selfloop transitions, 19 changer transitions 0/74 dead transitions. [2021-03-25 04:50:59,922 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 74 transitions, 628 flow [2021-03-25 04:50:59,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 04:50:59,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 04:50:59,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1172 transitions. [2021-03-25 04:50:59,924 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8413496051687006 [2021-03-25 04:50:59,925 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1172 transitions. [2021-03-25 04:50:59,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1172 transitions. [2021-03-25 04:50:59,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:50:59,925 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1172 transitions. [2021-03-25 04:50:59,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 167.42857142857142) internal successors, (1172), 7 states have internal predecessors, (1172), 0 states have call successors, (0), 0 states 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 04:50:59,928 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 199.0) internal successors, (1592), 8 states have internal predecessors, (1592), 0 states have call successors, (0), 0 states 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 04:50:59,929 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 199.0) internal successors, (1592), 8 states have internal predecessors, (1592), 0 states have call successors, (0), 0 states 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 04:50:59,929 INFO L185 Difference]: Start difference. First operand has 73 places, 61 transitions, 488 flow. Second operand 7 states and 1172 transitions. [2021-03-25 04:50:59,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 74 transitions, 628 flow [2021-03-25 04:50:59,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 74 transitions, 623 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 04:50:59,935 INFO L241 Difference]: Finished difference. Result has 81 places, 70 transitions, 629 flow [2021-03-25 04:50:59,935 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=199, PETRI_DIFFERENCE_MINUEND_FLOW=483, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=629, PETRI_PLACES=81, PETRI_TRANSITIONS=70} [2021-03-25 04:50:59,935 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 27 predicate places. [2021-03-25 04:50:59,935 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:50:59,936 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 70 transitions, 629 flow [2021-03-25 04:50:59,936 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 70 transitions, 629 flow [2021-03-25 04:50:59,936 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 70 transitions, 629 flow [2021-03-25 04:51:00,030 INFO L129 PetriNetUnfolder]: 539/1107 cut-off events. [2021-03-25 04:51:00,031 INFO L130 PetriNetUnfolder]: For 5838/9420 co-relation queries the response was YES. [2021-03-25 04:51:00,036 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5679 conditions, 1107 events. 539/1107 cut-off events. For 5838/9420 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 8095 event pairs, 88 based on Foata normal form. 23/934 useless extension candidates. Maximal degree in co-relation 5646. Up to 806 conditions per place. [2021-03-25 04:51:00,047 INFO L142 LiptonReduction]: Number of co-enabled transitions 1200 [2021-03-25 04:51:00,077 INFO L154 LiptonReduction]: Checked pairs total: 447 [2021-03-25 04:51:00,077 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:51:00,077 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 142 [2021-03-25 04:51:00,077 INFO L480 AbstractCegarLoop]: Abstraction has has 81 places, 70 transitions, 629 flow [2021-03-25 04:51:00,077 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 163.8) internal successors, (819), 5 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:51:00,077 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:51:00,078 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 04:51:00,078 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-25 04:51:00,078 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:51:00,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:51:00,078 INFO L82 PathProgramCache]: Analyzing trace with hash -1102461434, now seen corresponding path program 1 times [2021-03-25 04:51:00,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:51:00,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035456151] [2021-03-25 04:51:00,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:51:00,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:51:00,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:51:00,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:51:00,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:51:00,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:51:00,115 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 04:51:00,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035456151] [2021-03-25 04:51:00,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:51:00,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:51:00,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434246405] [2021-03-25 04:51:00,115 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:51:00,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:51:00,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:51:00,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:51:00,116 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 199 [2021-03-25 04:51:00,117 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 70 transitions, 629 flow. Second operand has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states 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 04:51:00,117 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:51:00,117 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 199 [2021-03-25 04:51:00,117 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:51:00,274 INFO L129 PetriNetUnfolder]: 947/1888 cut-off events. [2021-03-25 04:51:00,274 INFO L130 PetriNetUnfolder]: For 10904/18625 co-relation queries the response was YES. [2021-03-25 04:51:00,281 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9673 conditions, 1888 events. 947/1888 cut-off events. For 10904/18625 co-relation queries the response was YES. Maximal size of possible extension queue 395. Compared 14860 event pairs, 162 based on Foata normal form. 53/1602 useless extension candidates. Maximal degree in co-relation 9638. Up to 1401 conditions per place. [2021-03-25 04:51:00,287 INFO L132 encePairwiseOnDemand]: 196/199 looper letters, 3 selfloop transitions, 3 changer transitions 0/70 dead transitions. [2021-03-25 04:51:00,287 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 70 transitions, 641 flow [2021-03-25 04:51:00,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:51:00,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:51:00,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 525 transitions. [2021-03-25 04:51:00,289 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8793969849246231 [2021-03-25 04:51:00,289 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 525 transitions. [2021-03-25 04:51:00,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 525 transitions. [2021-03-25 04:51:00,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:51:00,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 525 transitions. [2021-03-25 04:51:00,290 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 0 states have call successors, (0), 0 states 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 04:51:00,293 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 199.0) internal successors, (796), 4 states have internal predecessors, (796), 0 states have call successors, (0), 0 states 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 04:51:00,293 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 199.0) internal successors, (796), 4 states have internal predecessors, (796), 0 states have call successors, (0), 0 states 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 04:51:00,293 INFO L185 Difference]: Start difference. First operand has 81 places, 70 transitions, 629 flow. Second operand 3 states and 525 transitions. [2021-03-25 04:51:00,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 70 transitions, 641 flow [2021-03-25 04:51:00,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 70 transitions, 591 flow, removed 17 selfloop flow, removed 3 redundant places. [2021-03-25 04:51:00,311 INFO L241 Difference]: Finished difference. Result has 81 places, 70 transitions, 590 flow [2021-03-25 04:51:00,311 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=199, PETRI_DIFFERENCE_MINUEND_FLOW=579, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=590, PETRI_PLACES=81, PETRI_TRANSITIONS=70} [2021-03-25 04:51:00,311 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 27 predicate places. [2021-03-25 04:51:00,311 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:51:00,311 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 70 transitions, 590 flow [2021-03-25 04:51:00,311 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 70 transitions, 590 flow [2021-03-25 04:51:00,313 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 70 transitions, 590 flow [2021-03-25 04:51:00,438 INFO L129 PetriNetUnfolder]: 946/1886 cut-off events. [2021-03-25 04:51:00,438 INFO L130 PetriNetUnfolder]: For 10205/11772 co-relation queries the response was YES. [2021-03-25 04:51:00,446 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8741 conditions, 1886 events. 946/1886 cut-off events. For 10205/11772 co-relation queries the response was YES. Maximal size of possible extension queue 392. Compared 15493 event pairs, 158 based on Foata normal form. 33/1584 useless extension candidates. Maximal degree in co-relation 8708. Up to 1229 conditions per place. [2021-03-25 04:51:00,462 INFO L142 LiptonReduction]: Number of co-enabled transitions 1200 [2021-03-25 04:51:00,584 INFO L154 LiptonReduction]: Checked pairs total: 498 [2021-03-25 04:51:00,584 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:51:00,584 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 273 [2021-03-25 04:51:00,585 INFO L480 AbstractCegarLoop]: Abstraction has has 81 places, 70 transitions, 590 flow [2021-03-25 04:51:00,585 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states 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 04:51:00,585 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:51:00,585 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 04:51:00,585 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-25 04:51:00,585 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:51:00,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:51:00,585 INFO L82 PathProgramCache]: Analyzing trace with hash 2063755336, now seen corresponding path program 1 times [2021-03-25 04:51:00,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:51:00,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394094851] [2021-03-25 04:51:00,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:51:00,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:51:00,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:51:00,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:51:00,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:51:00,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:51:00,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:51:00,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:51:00,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:51:00,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 04:51:00,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:51:00,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:51:00,624 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 04:51:00,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394094851] [2021-03-25 04:51:00,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:51:00,624 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 04:51:00,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433494260] [2021-03-25 04:51:00,624 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:51:00,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:51:00,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:51:00,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:51:00,626 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 199 [2021-03-25 04:51:00,626 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 70 transitions, 590 flow. Second operand has 6 states, 6 states have (on average 163.83333333333334) internal successors, (983), 6 states have internal predecessors, (983), 0 states have call successors, (0), 0 states 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 04:51:00,626 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:51:00,626 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 199 [2021-03-25 04:51:00,626 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:51:00,828 INFO L129 PetriNetUnfolder]: 717/1447 cut-off events. [2021-03-25 04:51:00,829 INFO L130 PetriNetUnfolder]: For 10098/18977 co-relation queries the response was YES. [2021-03-25 04:51:00,833 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7484 conditions, 1447 events. 717/1447 cut-off events. For 10098/18977 co-relation queries the response was YES. Maximal size of possible extension queue 311. Compared 10971 event pairs, 16 based on Foata normal form. 603/1753 useless extension candidates. Maximal degree in co-relation 7449. Up to 1008 conditions per place. [2021-03-25 04:51:00,837 INFO L132 encePairwiseOnDemand]: 192/199 looper letters, 7 selfloop transitions, 28 changer transitions 4/75 dead transitions. [2021-03-25 04:51:00,837 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 75 transitions, 704 flow [2021-03-25 04:51:00,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 04:51:00,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 04:51:00,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1507 transitions. [2021-03-25 04:51:00,839 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.84142936906756 [2021-03-25 04:51:00,839 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1507 transitions. [2021-03-25 04:51:00,840 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1507 transitions. [2021-03-25 04:51:00,840 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:51:00,840 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1507 transitions. [2021-03-25 04:51:00,842 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 167.44444444444446) internal successors, (1507), 9 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states 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 04:51:00,844 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 199.0) internal successors, (1990), 10 states have internal predecessors, (1990), 0 states have call successors, (0), 0 states 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 04:51:00,844 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 199.0) internal successors, (1990), 10 states have internal predecessors, (1990), 0 states have call successors, (0), 0 states 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 04:51:00,844 INFO L185 Difference]: Start difference. First operand has 81 places, 70 transitions, 590 flow. Second operand 9 states and 1507 transitions. [2021-03-25 04:51:00,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 75 transitions, 704 flow [2021-03-25 04:51:00,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 75 transitions, 675 flow, removed 7 selfloop flow, removed 5 redundant places. [2021-03-25 04:51:00,852 INFO L241 Difference]: Finished difference. Result has 87 places, 71 transitions, 653 flow [2021-03-25 04:51:00,852 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=199, PETRI_DIFFERENCE_MINUEND_FLOW=471, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=653, PETRI_PLACES=87, PETRI_TRANSITIONS=71} [2021-03-25 04:51:00,852 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 33 predicate places. [2021-03-25 04:51:00,852 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:51:00,852 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 71 transitions, 653 flow [2021-03-25 04:51:00,854 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 71 transitions, 653 flow [2021-03-25 04:51:00,855 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 71 transitions, 653 flow [2021-03-25 04:51:00,935 INFO L129 PetriNetUnfolder]: 645/1350 cut-off events. [2021-03-25 04:51:00,936 INFO L130 PetriNetUnfolder]: For 10609/12658 co-relation queries the response was YES. [2021-03-25 04:51:00,941 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7464 conditions, 1350 events. 645/1350 cut-off events. For 10609/12658 co-relation queries the response was YES. Maximal size of possible extension queue 298. Compared 10890 event pairs, 16 based on Foata normal form. 19/1083 useless extension candidates. Maximal degree in co-relation 7429. Up to 912 conditions per place. [2021-03-25 04:51:00,952 INFO L142 LiptonReduction]: Number of co-enabled transitions 1242 [2021-03-25 04:51:00,963 INFO L154 LiptonReduction]: Checked pairs total: 419 [2021-03-25 04:51:00,963 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:51:00,963 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 111 [2021-03-25 04:51:00,964 INFO L480 AbstractCegarLoop]: Abstraction has has 87 places, 71 transitions, 653 flow [2021-03-25 04:51:00,964 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 163.83333333333334) internal successors, (983), 6 states have internal predecessors, (983), 0 states have call successors, (0), 0 states 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 04:51:00,964 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:51:00,964 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 04:51:00,964 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-25 04:51:00,964 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:51:00,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:51:00,965 INFO L82 PathProgramCache]: Analyzing trace with hash 1683207149, now seen corresponding path program 1 times [2021-03-25 04:51:00,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:51:00,965 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378763351] [2021-03-25 04:51:00,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:51:00,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:51:01,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:51:01,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:51:01,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:51:01,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:51:01,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:51:01,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:51:01,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:51:01,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:51:01,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:51:01,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 04:51:01,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:51:01,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:51:01,021 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 04:51:01,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378763351] [2021-03-25 04:51:01,021 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:51:01,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 04:51:01,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746567548] [2021-03-25 04:51:01,022 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 04:51:01,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:51:01,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 04:51:01,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 04:51:01,023 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 199 [2021-03-25 04:51:01,023 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 71 transitions, 653 flow. Second operand has 7 states, 7 states have (on average 163.85714285714286) internal successors, (1147), 7 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states 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 04:51:01,023 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:51:01,023 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 199 [2021-03-25 04:51:01,023 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:51:01,190 INFO L129 PetriNetUnfolder]: 604/1247 cut-off events. [2021-03-25 04:51:01,190 INFO L130 PetriNetUnfolder]: For 12981/26187 co-relation queries the response was YES. [2021-03-25 04:51:01,195 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7898 conditions, 1247 events. 604/1247 cut-off events. For 12981/26187 co-relation queries the response was YES. Maximal size of possible extension queue 312. Compared 9624 event pairs, 0 based on Foata normal form. 562/1515 useless extension candidates. Maximal degree in co-relation 7861. Up to 862 conditions per place. [2021-03-25 04:51:01,197 INFO L132 encePairwiseOnDemand]: 192/199 looper letters, 2 selfloop transitions, 33 changer transitions 8/73 dead transitions. [2021-03-25 04:51:01,197 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 73 transitions, 744 flow [2021-03-25 04:51:01,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 04:51:01,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 04:51:01,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1834 transitions. [2021-03-25 04:51:01,201 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8378254910918228 [2021-03-25 04:51:01,201 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1834 transitions. [2021-03-25 04:51:01,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1834 transitions. [2021-03-25 04:51:01,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:51:01,201 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1834 transitions. [2021-03-25 04:51:01,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 166.72727272727272) internal successors, (1834), 11 states have internal predecessors, (1834), 0 states have call successors, (0), 0 states 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 04:51:01,206 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 199.0) internal successors, (2388), 12 states have internal predecessors, (2388), 0 states have call successors, (0), 0 states 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 04:51:01,206 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 199.0) internal successors, (2388), 12 states have internal predecessors, (2388), 0 states have call successors, (0), 0 states 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 04:51:01,206 INFO L185 Difference]: Start difference. First operand has 87 places, 71 transitions, 653 flow. Second operand 11 states and 1834 transitions. [2021-03-25 04:51:01,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 73 transitions, 744 flow [2021-03-25 04:51:01,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 73 transitions, 596 flow, removed 42 selfloop flow, removed 10 redundant places. [2021-03-25 04:51:01,250 INFO L241 Difference]: Finished difference. Result has 90 places, 65 transitions, 536 flow [2021-03-25 04:51:01,250 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=199, PETRI_DIFFERENCE_MINUEND_FLOW=462, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=536, PETRI_PLACES=90, PETRI_TRANSITIONS=65} [2021-03-25 04:51:01,250 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 36 predicate places. [2021-03-25 04:51:01,250 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:51:01,250 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 65 transitions, 536 flow [2021-03-25 04:51:01,250 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 65 transitions, 536 flow [2021-03-25 04:51:01,251 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 89 places, 65 transitions, 536 flow [2021-03-25 04:51:01,270 INFO L129 PetriNetUnfolder]: 149/335 cut-off events. [2021-03-25 04:51:01,270 INFO L130 PetriNetUnfolder]: For 1946/2472 co-relation queries the response was YES. [2021-03-25 04:51:01,271 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1479 conditions, 335 events. 149/335 cut-off events. For 1946/2472 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 1978 event pairs, 0 based on Foata normal form. 6/293 useless extension candidates. Maximal degree in co-relation 1445. Up to 110 conditions per place. [2021-03-25 04:51:01,273 INFO L142 LiptonReduction]: Number of co-enabled transitions 776 [2021-03-25 04:51:01,511 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-03-25 04:51:01,622 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-03-25 04:51:02,206 WARN L205 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 184 [2021-03-25 04:51:02,404 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-03-25 04:51:04,246 WARN L205 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 338 DAG size of output: 266 [2021-03-25 04:51:04,767 WARN L205 SmtUtils]: Spent 517.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2021-03-25 04:51:05,023 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2021-03-25 04:51:05,231 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2021-03-25 04:51:05,850 WARN L205 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2021-03-25 04:51:06,379 WARN L205 SmtUtils]: Spent 527.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2021-03-25 04:51:06,384 INFO L154 LiptonReduction]: Checked pairs total: 820 [2021-03-25 04:51:06,384 INFO L156 LiptonReduction]: Total number of compositions: 12 [2021-03-25 04:51:06,385 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5135 [2021-03-25 04:51:06,385 INFO L480 AbstractCegarLoop]: Abstraction has has 84 places, 56 transitions, 496 flow [2021-03-25 04:51:06,385 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 163.85714285714286) internal successors, (1147), 7 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states 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 04:51:06,385 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:51:06,385 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:51:06,385 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-25 04:51:06,385 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:51:06,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:51:06,386 INFO L82 PathProgramCache]: Analyzing trace with hash 306186854, now seen corresponding path program 1 times [2021-03-25 04:51:06,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:51:06,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667760949] [2021-03-25 04:51:06,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:51:06,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:51:06,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:51:06,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:51:06,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:51:06,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 04:51:06,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:51:06,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 04:51:06,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:51:06,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 04:51:06,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:51:06,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 04:51:06,446 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 04:51:06,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667760949] [2021-03-25 04:51:06,446 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:51:06,446 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 04:51:06,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739619592] [2021-03-25 04:51:06,446 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 04:51:06,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:51:06,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 04:51:06,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-25 04:51:06,447 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 207 [2021-03-25 04:51:06,448 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 56 transitions, 496 flow. Second operand has 7 states, 7 states have (on average 149.14285714285714) internal successors, (1044), 7 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:51:06,448 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:51:06,448 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 207 [2021-03-25 04:51:06,448 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:51:06,549 INFO L129 PetriNetUnfolder]: 93/209 cut-off events. [2021-03-25 04:51:06,549 INFO L130 PetriNetUnfolder]: For 3810/3990 co-relation queries the response was YES. [2021-03-25 04:51:06,550 INFO L84 FinitePrefix]: Finished finitePrefix Result has 955 conditions, 209 events. 93/209 cut-off events. For 3810/3990 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 955 event pairs, 0 based on Foata normal form. 16/203 useless extension candidates. Maximal degree in co-relation 919. Up to 80 conditions per place. [2021-03-25 04:51:06,550 INFO L132 encePairwiseOnDemand]: 200/207 looper letters, 8 selfloop transitions, 3 changer transitions 21/56 dead transitions. [2021-03-25 04:51:06,550 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 56 transitions, 533 flow [2021-03-25 04:51:06,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 04:51:06,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 04:51:06,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1057 transitions. [2021-03-25 04:51:06,554 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7294685990338164 [2021-03-25 04:51:06,554 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1057 transitions. [2021-03-25 04:51:06,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1057 transitions. [2021-03-25 04:51:06,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:51:06,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1057 transitions. [2021-03-25 04:51:06,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 151.0) internal successors, (1057), 7 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states 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 04:51:06,559 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 207.0) internal successors, (1656), 8 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states 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 04:51:06,559 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 207.0) internal successors, (1656), 8 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states 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 04:51:06,559 INFO L185 Difference]: Start difference. First operand has 84 places, 56 transitions, 496 flow. Second operand 7 states and 1057 transitions. [2021-03-25 04:51:06,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 56 transitions, 533 flow [2021-03-25 04:51:06,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 56 transitions, 436 flow, removed 28 selfloop flow, removed 17 redundant places. [2021-03-25 04:51:06,563 INFO L241 Difference]: Finished difference. Result has 65 places, 35 transitions, 217 flow [2021-03-25 04:51:06,563 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=285, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=217, PETRI_PLACES=65, PETRI_TRANSITIONS=35} [2021-03-25 04:51:06,563 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 11 predicate places. [2021-03-25 04:51:06,563 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:51:06,563 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 35 transitions, 217 flow [2021-03-25 04:51:06,563 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 35 transitions, 217 flow [2021-03-25 04:51:06,564 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 35 transitions, 217 flow [2021-03-25 04:51:06,568 INFO L129 PetriNetUnfolder]: 31/83 cut-off events. [2021-03-25 04:51:06,569 INFO L130 PetriNetUnfolder]: For 150/159 co-relation queries the response was YES. [2021-03-25 04:51:06,569 INFO L84 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 83 events. 31/83 cut-off events. For 150/159 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 272 event pairs, 0 based on Foata normal form. 2/79 useless extension candidates. Maximal degree in co-relation 251. Up to 28 conditions per place. [2021-03-25 04:51:06,569 INFO L142 LiptonReduction]: Number of co-enabled transitions 82 [2021-03-25 04:51:06,739 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-25 04:51:07,150 WARN L205 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 81 [2021-03-25 04:51:07,280 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-03-25 04:51:07,464 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-03-25 04:51:07,879 WARN L205 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 89 [2021-03-25 04:51:08,002 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-03-25 04:51:08,216 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 89 [2021-03-25 04:51:08,380 INFO L154 LiptonReduction]: Checked pairs total: 10 [2021-03-25 04:51:08,381 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 04:51:08,381 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1818 [2021-03-25 04:51:08,381 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 34 transitions, 226 flow [2021-03-25 04:51:08,381 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 149.14285714285714) internal successors, (1044), 7 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:51:08,381 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:51:08,381 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] [2021-03-25 04:51:08,381 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-25 04:51:08,381 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:51:08,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:51:08,382 INFO L82 PathProgramCache]: Analyzing trace with hash 598057085, now seen corresponding path program 1 times [2021-03-25 04:51:08,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:51:08,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685527115] [2021-03-25 04:51:08,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:51:08,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 04:51:08,401 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 04:51:08,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 04:51:08,437 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 04:51:08,464 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-25 04:51:08,464 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-25 04:51:08,465 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-25 04:51:08,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 04:51:08 BasicIcfg [2021-03-25 04:51:08,549 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 04:51:08,550 INFO L168 Benchmark]: Toolchain (without parser) took 28064.67 ms. Allocated memory was 255.9 MB in the beginning and 811.6 MB in the end (delta: 555.7 MB). Free memory was 233.1 MB in the beginning and 602.8 MB in the end (delta: -369.7 MB). Peak memory consumption was 186.0 MB. Max. memory is 16.0 GB. [2021-03-25 04:51:08,550 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 04:51:08,550 INFO L168 Benchmark]: CACSL2BoogieTranslator took 518.15 ms. Allocated memory was 255.9 MB in the beginning and 331.4 MB in the end (delta: 75.5 MB). Free memory was 232.6 MB in the beginning and 288.6 MB in the end (delta: -56.0 MB). Peak memory consumption was 19.4 MB. Max. memory is 16.0 GB. [2021-03-25 04:51:08,550 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.36 ms. Allocated memory is still 331.4 MB. Free memory was 288.6 MB in the beginning and 285.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 04:51:08,550 INFO L168 Benchmark]: Boogie Preprocessor took 47.83 ms. Allocated memory is still 331.4 MB. Free memory was 285.9 MB in the beginning and 283.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 04:51:08,550 INFO L168 Benchmark]: RCFGBuilder took 1307.36 ms. Allocated memory is still 331.4 MB. Free memory was 283.8 MB in the beginning and 284.1 MB in the end (delta: -275.9 kB). Peak memory consumption was 61.8 MB. Max. memory is 16.0 GB. [2021-03-25 04:51:08,550 INFO L168 Benchmark]: TraceAbstraction took 26111.36 ms. Allocated memory was 331.4 MB in the beginning and 811.6 MB in the end (delta: 480.2 MB). Free memory was 284.1 MB in the beginning and 602.8 MB in the end (delta: -318.8 MB). Peak memory consumption was 161.5 MB. Max. memory is 16.0 GB. [2021-03-25 04:51:08,551 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 518.15 ms. Allocated memory was 255.9 MB in the beginning and 331.4 MB in the end (delta: 75.5 MB). Free memory was 232.6 MB in the beginning and 288.6 MB in the end (delta: -56.0 MB). Peak memory consumption was 19.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 73.36 ms. Allocated memory is still 331.4 MB. Free memory was 288.6 MB in the beginning and 285.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 47.83 ms. Allocated memory is still 331.4 MB. Free memory was 285.9 MB in the beginning and 283.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1307.36 ms. Allocated memory is still 331.4 MB. Free memory was 283.8 MB in the beginning and 284.1 MB in the end (delta: -275.9 kB). Peak memory consumption was 61.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 26111.36 ms. Allocated memory was 331.4 MB in the beginning and 811.6 MB in the end (delta: 480.2 MB). Free memory was 284.1 MB in the beginning and 602.8 MB in the end (delta: -318.8 MB). Peak memory consumption was 161.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6770.7ms, 119 PlacesBefore, 54 PlacesAfterwards, 108 TransitionsBefore, 42 TransitionsAfterwards, 2406 CoEnabledTransitionPairs, 6 FixpointIterations, 30 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 75 TotalNumberOfCompositions, 4010 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2149, positive: 2053, positive conditional: 0, positive unconditional: 2053, negative: 96, negative conditional: 0, negative unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1205, positive: 1181, positive conditional: 0, positive unconditional: 1181, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1205, positive: 1181, positive conditional: 0, positive unconditional: 1181, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2149, positive: 872, positive conditional: 0, positive unconditional: 872, negative: 72, negative conditional: 0, negative unconditional: 72, unknown: 1205, unknown conditional: 0, unknown unconditional: 1205] , Statistics on independence cache: Total cache size (in pairs): 137, Positive cache size: 127, Positive conditional cache size: 0, Positive unconditional cache size: 127, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2737.9ms, 50 PlacesBefore, 38 PlacesAfterwards, 35 TransitionsBefore, 27 TransitionsAfterwards, 362 CoEnabledTransitionPairs, 3 FixpointIterations, 6 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 8 TotalNumberOfCompositions, 1154 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 392, positive: 323, positive conditional: 0, positive unconditional: 323, negative: 69, negative conditional: 0, negative unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 39, positive: 27, positive conditional: 0, positive unconditional: 27, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 39, positive: 27, positive conditional: 0, positive unconditional: 27, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 392, positive: 296, positive conditional: 0, positive unconditional: 296, negative: 57, negative conditional: 0, negative unconditional: 57, unknown: 39, unknown conditional: 0, unknown unconditional: 39] , Statistics on independence cache: Total cache size (in pairs): 143, Positive cache size: 124, Positive conditional cache size: 0, Positive unconditional cache size: 124, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 923.0ms, 41 PlacesBefore, 39 PlacesAfterwards, 31 TransitionsBefore, 29 TransitionsAfterwards, 362 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 1086 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 428, positive: 368, positive conditional: 0, positive unconditional: 368, 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: 2, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 428, positive: 367, positive conditional: 0, positive unconditional: 367, negative: 59, negative conditional: 0, negative unconditional: 59, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 145, Positive cache size: 125, Positive conditional cache size: 0, Positive unconditional cache size: 125, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.7ms, 42 PlacesBefore, 42 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 428 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 342 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 108, positive: 90, positive conditional: 0, positive unconditional: 90, negative: 18, negative conditional: 0, negative unconditional: 18, 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: 108, positive: 90, positive conditional: 0, positive unconditional: 90, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 145, Positive cache size: 125, Positive conditional cache size: 0, Positive unconditional cache size: 125, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 627.2ms, 45 PlacesBefore, 45 PlacesAfterwards, 34 TransitionsBefore, 34 TransitionsAfterwards, 474 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 512 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 197, positive: 172, positive conditional: 0, positive unconditional: 172, 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: 4, positive: 3, positive conditional: 0, positive unconditional: 3, 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: 4, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 197, positive: 169, positive conditional: 0, positive unconditional: 169, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 139, Positive cache size: 123, Positive conditional cache size: 0, Positive unconditional cache size: 123, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 31.6ms, 48 PlacesBefore, 48 PlacesAfterwards, 36 TransitionsBefore, 36 TransitionsAfterwards, 504 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 274 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 36, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 36, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 143, Positive cache size: 125, Positive conditional cache size: 0, Positive unconditional cache size: 125, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.6ms, 51 PlacesBefore, 51 PlacesAfterwards, 38 TransitionsBefore, 38 TransitionsAfterwards, 538 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 337 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 75, positive: 59, positive conditional: 0, positive unconditional: 59, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 75, positive: 58, positive conditional: 0, positive unconditional: 58, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 144, Positive cache size: 126, Positive conditional cache size: 0, Positive unconditional cache size: 126, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.1ms, 52 PlacesBefore, 52 PlacesAfterwards, 38 TransitionsBefore, 38 TransitionsAfterwards, 538 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 322 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 37, positive: 22, positive conditional: 0, positive unconditional: 22, 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: 37, positive: 22, positive conditional: 0, positive unconditional: 22, 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): 144, Positive cache size: 126, Positive conditional cache size: 0, Positive unconditional cache size: 126, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.3ms, 55 PlacesBefore, 55 PlacesAfterwards, 41 TransitionsBefore, 41 TransitionsAfterwards, 590 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 396 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 140, positive: 122, positive conditional: 0, positive unconditional: 122, negative: 18, negative conditional: 0, negative unconditional: 18, 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: 140, positive: 122, positive conditional: 0, positive unconditional: 122, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 144, Positive cache size: 126, Positive conditional cache size: 0, Positive unconditional cache size: 126, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.0ms, 60 PlacesBefore, 60 PlacesAfterwards, 45 TransitionsBefore, 45 TransitionsAfterwards, 660 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 485 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 144, positive: 123, positive conditional: 0, positive unconditional: 123, negative: 21, negative conditional: 0, negative unconditional: 21, 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: 144, positive: 122, positive conditional: 0, positive unconditional: 122, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 145, Positive cache size: 127, Positive conditional cache size: 0, Positive unconditional cache size: 127, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.7ms, 62 PlacesBefore, 62 PlacesAfterwards, 51 TransitionsBefore, 51 TransitionsAfterwards, 760 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 704 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 118, positive: 89, positive conditional: 0, positive unconditional: 89, negative: 29, negative conditional: 0, negative unconditional: 29, 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: 118, positive: 88, positive conditional: 0, positive unconditional: 88, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 146, Positive cache size: 128, Positive conditional cache size: 0, Positive unconditional cache size: 128, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.9ms, 66 PlacesBefore, 66 PlacesAfterwards, 51 TransitionsBefore, 51 TransitionsAfterwards, 764 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 713 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 184, positive: 153, positive conditional: 0, positive unconditional: 153, 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: 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: 184, positive: 153, positive conditional: 0, positive unconditional: 153, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 146, Positive cache size: 128, Positive conditional cache size: 0, Positive unconditional cache size: 128, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.2ms, 68 PlacesBefore, 68 PlacesAfterwards, 53 TransitionsBefore, 53 TransitionsAfterwards, 802 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 821 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 194, positive: 158, positive conditional: 0, positive unconditional: 158, negative: 36, negative conditional: 0, negative unconditional: 36, 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: 194, positive: 157, positive conditional: 0, positive unconditional: 157, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 147, Positive cache size: 129, Positive conditional cache size: 0, Positive unconditional cache size: 129, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23.5ms, 67 PlacesBefore, 67 PlacesAfterwards, 55 TransitionsBefore, 55 TransitionsAfterwards, 840 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 687 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 109, positive: 78, positive conditional: 0, positive unconditional: 78, 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: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 109, positive: 76, positive conditional: 0, positive unconditional: 76, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 149, Positive cache size: 131, Positive conditional cache size: 0, Positive unconditional cache size: 131, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 36.3ms, 68 PlacesBefore, 68 PlacesAfterwards, 55 TransitionsBefore, 55 TransitionsAfterwards, 840 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 775 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 131, positive: 98, positive conditional: 0, positive unconditional: 98, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 131, positive: 97, positive conditional: 0, positive unconditional: 97, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 150, Positive cache size: 132, Positive conditional cache size: 0, Positive unconditional cache size: 132, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2621.8ms, 72 PlacesBefore, 72 PlacesAfterwards, 55 TransitionsBefore, 55 TransitionsAfterwards, 838 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 1317 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 216, positive: 160, positive conditional: 0, positive unconditional: 160, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 216, positive: 155, positive conditional: 0, positive unconditional: 155, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 146, Positive cache size: 129, Positive conditional cache size: 0, Positive unconditional cache size: 129, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 289.7ms, 73 PlacesBefore, 73 PlacesAfterwards, 61 TransitionsBefore, 61 TransitionsAfterwards, 1036 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 364 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 30, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 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: 30, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 146, Positive cache size: 129, Positive conditional cache size: 0, Positive unconditional cache size: 129, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 141.1ms, 81 PlacesBefore, 81 PlacesAfterwards, 70 TransitionsBefore, 70 TransitionsAfterwards, 1200 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 447 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 19, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 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: 19, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 146, Positive cache size: 129, Positive conditional cache size: 0, Positive unconditional cache size: 129, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 272.8ms, 81 PlacesBefore, 81 PlacesAfterwards, 70 TransitionsBefore, 70 TransitionsAfterwards, 1200 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 498 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 26, positive: 12, positive conditional: 0, positive unconditional: 12, 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: 26, positive: 12, positive conditional: 0, positive unconditional: 12, 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): 146, Positive cache size: 129, Positive conditional cache size: 0, Positive unconditional cache size: 129, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 108.3ms, 87 PlacesBefore, 87 PlacesAfterwards, 71 TransitionsBefore, 71 TransitionsAfterwards, 1242 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 419 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 40, positive: 29, positive conditional: 0, positive unconditional: 29, 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: 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: 40, positive: 29, positive conditional: 0, positive unconditional: 29, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 146, Positive cache size: 129, Positive conditional cache size: 0, Positive unconditional cache size: 129, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5134.0ms, 90 PlacesBefore, 84 PlacesAfterwards, 65 TransitionsBefore, 56 TransitionsAfterwards, 776 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 12 TotalNumberOfCompositions, 820 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 457, positive: 435, positive conditional: 0, positive unconditional: 435, 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: 16, positive: 15, positive conditional: 0, positive unconditional: 15, 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: 16, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 457, positive: 420, positive conditional: 0, positive unconditional: 420, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 16, unknown conditional: 0, unknown unconditional: 16] , Statistics on independence cache: Total cache size (in pairs): 35, Positive cache size: 29, Positive conditional cache size: 0, Positive unconditional cache size: 29, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1817.3ms, 65 PlacesBefore, 57 PlacesAfterwards, 35 TransitionsBefore, 34 TransitionsAfterwards, 82 CoEnabledTransitionPairs, 4 FixpointIterations, 3 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 10 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 10, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 20, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p3_EAX = 0; [L714] 0 int a = 0; [L715] 0 _Bool main$tmp_guard0; [L716] 0 _Bool main$tmp_guard1; [L718] 0 int x = 0; [L720] 0 int y = 0; [L722] 0 int z = 0; [L723] 0 _Bool z$flush_delayed; [L724] 0 int z$mem_tmp; [L725] 0 _Bool z$r_buff0_thd0; [L726] 0 _Bool z$r_buff0_thd1; [L727] 0 _Bool z$r_buff0_thd2; [L728] 0 _Bool z$r_buff0_thd3; [L729] 0 _Bool z$r_buff0_thd4; [L730] 0 _Bool z$r_buff1_thd0; [L731] 0 _Bool z$r_buff1_thd1; [L732] 0 _Bool z$r_buff1_thd2; [L733] 0 _Bool z$r_buff1_thd3; [L734] 0 _Bool z$r_buff1_thd4; [L735] 0 _Bool z$read_delayed; [L736] 0 int *z$read_delayed_var; [L737] 0 int z$w_buff0; [L738] 0 _Bool z$w_buff0_used; [L739] 0 int z$w_buff1; [L740] 0 _Bool z$w_buff1_used; [L741] 0 _Bool weak$$choice0; [L742] 0 _Bool weak$$choice2; [L834] 0 pthread_t t1517; [L835] FCALL, FORK 0 pthread_create(&t1517, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L836] 0 pthread_t t1518; [L837] FCALL, FORK 0 pthread_create(&t1518, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=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, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L838] 0 pthread_t t1519; [L839] FCALL, FORK 0 pthread_create(&t1519, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=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=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L840] 0 pthread_t t1520; [L841] FCALL, FORK 0 pthread_create(&t1520, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=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=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L796] 4 z$w_buff1 = z$w_buff0 [L797] 4 z$w_buff0 = 2 [L798] 4 z$w_buff1_used = z$w_buff0_used [L799] 4 z$w_buff0_used = (_Bool)1 [L18] COND FALSE 4 !(!expression) [L801] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L802] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L803] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L804] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L805] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L806] 4 z$r_buff0_thd4 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L809] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=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=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L746] 1 a = 1 [L749] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=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=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L761] 2 x = 2 [L764] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L776] 3 y = 2 [L779] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L782] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L782] EXPR 3 z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z [L782] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L782] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L783] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L783] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L784] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L784] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L785] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L785] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L786] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L786] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L754] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L756] 1 return 0; [L769] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L771] 2 return 0; [L789] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L791] 3 return 0; [L812] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L812] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L813] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L813] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L814] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L814] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L815] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L815] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L816] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L816] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L819] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L821] 4 return 0; [L843] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L3] COND FALSE 0 !(!cond) [L847] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L847] EXPR 0 z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z [L847] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L847] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L848] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L848] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L849] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L849] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L850] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L850] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L851] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L851] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L854] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L855] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L856] 0 z$flush_delayed = weak$$choice2 [L857] 0 z$mem_tmp = z [L858] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L858] 0 z = !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L859] EXPR 0 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L859] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0) [L859] EXPR 0 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L859] 0 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L860] EXPR 0 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L860] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1) [L860] EXPR 0 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L860] 0 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L861] EXPR 0 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L861] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used) [L861] EXPR 0 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L861] 0 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L862] EXPR 0 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L862] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L862] EXPR 0 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L862] 0 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L863] EXPR 0 weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L863] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0) [L863] EXPR 0 weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L863] 0 z$r_buff0_thd0 = weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L864] EXPR 0 weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L864] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L864] EXPR 0 weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L864] 0 z$r_buff1_thd0 = weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L865] 0 main$tmp_guard1 = !(x == 2 && y == 2 && z == 2 && __unbuffered_p3_EAX == 0) [L866] EXPR 0 z$flush_delayed ? z$mem_tmp : z [L866] 0 z = z$flush_delayed ? z$mem_tmp : z [L867] 0 z$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=53, weak$$choice2=0, x=2, y=2, z=2, z$flush_delayed=0, z$mem_tmp=2, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 111 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 8.4ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 25954.7ms, OverallIterations: 22, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 2349.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6824.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 84 SDtfs, 53 SDslu, 44 SDs, 0 SdLazy, 505 SolverSat, 176 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 521.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 526.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=653occurred in iteration=19, InterpolantAutomatonStates: 104, 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: 54.4ms SsaConstructionTime, 421.7ms SatisfiabilityAnalysisTime, 1104.8ms InterpolantComputationTime, 370 NumberOfCodeBlocks, 370 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 329 ConstructedInterpolants, 0 QuantifiedInterpolants, 2382 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 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...