./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a4208e364fc80ce33bd799516b7b127a7314c394860a88240a88c2fb8dc1fa8b --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 10:23:33,619 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 10:23:33,621 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 10:23:33,645 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 10:23:33,646 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 10:23:33,647 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 10:23:33,648 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 10:23:33,650 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 10:23:33,651 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 10:23:33,652 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 10:23:33,653 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 10:23:33,654 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 10:23:33,654 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 10:23:33,655 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 10:23:33,656 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 10:23:33,657 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 10:23:33,658 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 10:23:33,659 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 10:23:33,660 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 10:23:33,661 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 10:23:33,663 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 10:23:33,664 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 10:23:33,664 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 10:23:33,665 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 10:23:33,666 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 10:23:33,669 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 10:23:33,669 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 10:23:33,669 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 10:23:33,670 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 10:23:33,671 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 10:23:33,672 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 10:23:33,672 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 10:23:33,673 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 10:23:33,674 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 10:23:33,674 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 10:23:33,675 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 10:23:33,676 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 10:23:33,676 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 10:23:33,676 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 10:23:33,677 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 10:23:33,677 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 10:23:33,678 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 10:23:33,679 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 10:23:33,699 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 10:23:33,700 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 10:23:33,700 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 10:23:33,700 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 10:23:33,701 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 10:23:33,701 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 10:23:33,702 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 10:23:33,702 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 10:23:33,702 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 10:23:33,703 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 10:23:33,704 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 10:23:33,704 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 10:23:33,704 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 10:23:33,704 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 10:23:33,705 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 10:23:33,705 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 10:23:33,705 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 10:23:33,705 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 10:23:33,705 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 10:23:33,707 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 10:23:33,707 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 10:23:33,707 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 10:23:33,708 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 10:23:33,708 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 10:23:33,708 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 10:23:33,708 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 10:23:33,709 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 10:23:33,709 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 10:23:33,709 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 10:23:33,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 10:23:33,710 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 10:23:33,710 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 10:23:33,710 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 10:23:33,710 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a4208e364fc80ce33bd799516b7b127a7314c394860a88240a88c2fb8dc1fa8b [2022-07-12 10:23:33,930 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 10:23:33,952 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 10:23:33,955 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 10:23:33,957 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 10:23:33,958 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 10:23:33,959 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c [2022-07-12 10:23:34,024 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cc32693f/96d57679f7b54c4ea29d666aa550de76/FLAGec571c45c [2022-07-12 10:23:34,481 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 10:23:34,482 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c [2022-07-12 10:23:34,505 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cc32693f/96d57679f7b54c4ea29d666aa550de76/FLAGec571c45c [2022-07-12 10:23:34,866 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cc32693f/96d57679f7b54c4ea29d666aa550de76 [2022-07-12 10:23:34,869 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 10:23:34,872 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 10:23:34,875 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 10:23:34,875 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 10:23:34,878 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 10:23:34,879 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 10:23:34" (1/1) ... [2022-07-12 10:23:34,880 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22a53772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:23:34, skipping insertion in model container [2022-07-12 10:23:34,880 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 10:23:34" (1/1) ... [2022-07-12 10:23:34,886 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 10:23:34,903 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 10:23:35,069 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c[3072,3085] [2022-07-12 10:23:35,077 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 10:23:35,088 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 10:23:35,127 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c[3072,3085] [2022-07-12 10:23:35,136 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 10:23:35,150 INFO L208 MainTranslator]: Completed translation [2022-07-12 10:23:35,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:23:35 WrapperNode [2022-07-12 10:23:35,152 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 10:23:35,153 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 10:23:35,153 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 10:23:35,153 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 10:23:35,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:23:35" (1/1) ... [2022-07-12 10:23:35,177 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:23:35" (1/1) ... [2022-07-12 10:23:35,206 INFO L137 Inliner]: procedures = 23, calls = 31, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 176 [2022-07-12 10:23:35,206 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 10:23:35,207 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 10:23:35,207 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 10:23:35,207 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 10:23:35,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:23:35" (1/1) ... [2022-07-12 10:23:35,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:23:35" (1/1) ... [2022-07-12 10:23:35,227 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:23:35" (1/1) ... [2022-07-12 10:23:35,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:23:35" (1/1) ... [2022-07-12 10:23:35,233 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:23:35" (1/1) ... [2022-07-12 10:23:35,236 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:23:35" (1/1) ... [2022-07-12 10:23:35,237 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:23:35" (1/1) ... [2022-07-12 10:23:35,240 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 10:23:35,243 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 10:23:35,243 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 10:23:35,244 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 10:23:35,245 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:23:35" (1/1) ... [2022-07-12 10:23:35,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 10:23:35,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 10:23:35,270 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 10:23:35,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 10:23:35,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 10:23:35,301 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-07-12 10:23:35,301 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-07-12 10:23:35,302 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-07-12 10:23:35,302 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-07-12 10:23:35,302 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-07-12 10:23:35,302 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-07-12 10:23:35,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 10:23:35,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 10:23:35,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 10:23:35,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 10:23:35,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 10:23:35,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 10:23:35,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 10:23:35,304 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-12 10:23:35,377 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 10:23:35,379 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 10:23:35,661 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 10:23:35,671 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 10:23:35,672 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 10:23:35,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 10:23:35 BoogieIcfgContainer [2022-07-12 10:23:35,675 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 10:23:35,676 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 10:23:35,677 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 10:23:35,680 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 10:23:35,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 10:23:34" (1/3) ... [2022-07-12 10:23:35,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d2797eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 10:23:35, skipping insertion in model container [2022-07-12 10:23:35,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:23:35" (2/3) ... [2022-07-12 10:23:35,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d2797eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 10:23:35, skipping insertion in model container [2022-07-12 10:23:35,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 10:23:35" (3/3) ... [2022-07-12 10:23:35,683 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-exp-term-subst.wvr.c [2022-07-12 10:23:35,687 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-12 10:23:35,696 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 10:23:35,696 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 10:23:35,696 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-12 10:23:35,872 INFO L135 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-07-12 10:23:35,907 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 225 places, 232 transitions, 488 flow [2022-07-12 10:23:36,009 INFO L129 PetriNetUnfolder]: 17/229 cut-off events. [2022-07-12 10:23:36,010 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-07-12 10:23:36,025 INFO L84 FinitePrefix]: Finished finitePrefix Result has 242 conditions, 229 events. 17/229 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 492 event pairs, 0 based on Foata normal form. 0/211 useless extension candidates. Maximal degree in co-relation 154. Up to 2 conditions per place. [2022-07-12 10:23:36,025 INFO L82 GeneralOperation]: Start removeDead. Operand has 225 places, 232 transitions, 488 flow [2022-07-12 10:23:36,039 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 211 places, 218 transitions, 454 flow [2022-07-12 10:23:36,052 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 10:23:36,061 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@66bcf0a7, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5908eece [2022-07-12 10:23:36,061 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-07-12 10:23:36,124 INFO L129 PetriNetUnfolder]: 17/217 cut-off events. [2022-07-12 10:23:36,125 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-07-12 10:23:36,125 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:23:36,126 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:23:36,126 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-12 10:23:36,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:23:36,131 INFO L85 PathProgramCache]: Analyzing trace with hash -473937021, now seen corresponding path program 1 times [2022-07-12 10:23:36,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:23:36,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279798288] [2022-07-12 10:23:36,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:23:36,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:23:36,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:23:36,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:23:36,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:23:36,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279798288] [2022-07-12 10:23:36,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279798288] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:23:36,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:23:36,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 10:23:36,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400303171] [2022-07-12 10:23:36,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:23:36,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 10:23:36,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:23:36,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 10:23:36,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-12 10:23:36,674 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 232 [2022-07-12 10:23:36,680 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 218 transitions, 454 flow. Second operand has 8 states, 8 states have (on average 199.75) internal successors, (1598), 8 states have internal predecessors, (1598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:36,680 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:23:36,680 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 232 [2022-07-12 10:23:36,681 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:23:36,969 INFO L129 PetriNetUnfolder]: 135/600 cut-off events. [2022-07-12 10:23:36,969 INFO L130 PetriNetUnfolder]: For 180/180 co-relation queries the response was YES. [2022-07-12 10:23:36,976 INFO L84 FinitePrefix]: Finished finitePrefix Result has 947 conditions, 600 events. 135/600 cut-off events. For 180/180 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 3287 event pairs, 26 based on Foata normal form. 109/680 useless extension candidates. Maximal degree in co-relation 747. Up to 68 conditions per place. [2022-07-12 10:23:36,982 INFO L132 encePairwiseOnDemand]: 211/232 looper letters, 49 selfloop transitions, 17 changer transitions 16/266 dead transitions. [2022-07-12 10:23:36,983 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 266 transitions, 753 flow [2022-07-12 10:23:36,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-12 10:23:36,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-07-12 10:23:37,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2676 transitions. [2022-07-12 10:23:37,010 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8872679045092838 [2022-07-12 10:23:37,011 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2676 transitions. [2022-07-12 10:23:37,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2676 transitions. [2022-07-12 10:23:37,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:23:37,021 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2676 transitions. [2022-07-12 10:23:37,032 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 205.84615384615384) internal successors, (2676), 13 states have internal predecessors, (2676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:37,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 232.0) internal successors, (3248), 14 states have internal predecessors, (3248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:37,047 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 232.0) internal successors, (3248), 14 states have internal predecessors, (3248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:37,048 INFO L186 Difference]: Start difference. First operand has 211 places, 218 transitions, 454 flow. Second operand 13 states and 2676 transitions. [2022-07-12 10:23:37,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 266 transitions, 753 flow [2022-07-12 10:23:37,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 266 transitions, 715 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-07-12 10:23:37,064 INFO L242 Difference]: Finished difference. Result has 224 places, 222 transitions, 535 flow [2022-07-12 10:23:37,066 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=426, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=535, PETRI_PLACES=224, PETRI_TRANSITIONS=222} [2022-07-12 10:23:37,070 INFO L279 CegarLoopForPetriNet]: 211 programPoint places, 13 predicate places. [2022-07-12 10:23:37,070 INFO L495 AbstractCegarLoop]: Abstraction has has 224 places, 222 transitions, 535 flow [2022-07-12 10:23:37,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 199.75) internal successors, (1598), 8 states have internal predecessors, (1598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:37,071 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:23:37,072 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:23:37,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 10:23:37,072 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-12 10:23:37,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:23:37,073 INFO L85 PathProgramCache]: Analyzing trace with hash 727133555, now seen corresponding path program 1 times [2022-07-12 10:23:37,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:23:37,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903536643] [2022-07-12 10:23:37,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:23:37,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:23:37,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:23:37,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:23:37,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:23:37,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903536643] [2022-07-12 10:23:37,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903536643] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:23:37,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:23:37,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 10:23:37,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494476763] [2022-07-12 10:23:37,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:23:37,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 10:23:37,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:23:37,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 10:23:37,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-12 10:23:37,266 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2022-07-12 10:23:37,267 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 222 transitions, 535 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:37,268 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:23:37,268 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2022-07-12 10:23:37,272 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:23:37,795 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][167], [Black: 253#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 231#(= ~result_7~0 0), Black: 255#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_~cond#1| 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 242#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 66#L56-18true, 150#L44-5true, 57#L74-4true, 106#L50-18true, 228#true, 270#(and (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))))]) [2022-07-12 10:23:37,795 INFO L384 tUnfolder$Statistics]: this new event has 71 ancestors and is cut-off event [2022-07-12 10:23:37,796 INFO L387 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-07-12 10:23:37,796 INFO L387 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-07-12 10:23:37,796 INFO L387 tUnfolder$Statistics]: existing Event has 65 ancestors and is cut-off event [2022-07-12 10:23:37,826 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][167], [Black: 253#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 231#(= ~result_7~0 0), Black: 255#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_~cond#1| 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 242#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 66#L56-18true, 43#L44-8true, 57#L74-4true, 106#L50-18true, 228#true, 270#(and (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))))]) [2022-07-12 10:23:37,827 INFO L384 tUnfolder$Statistics]: this new event has 72 ancestors and is cut-off event [2022-07-12 10:23:37,827 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-07-12 10:23:37,827 INFO L387 tUnfolder$Statistics]: existing Event has 66 ancestors and is cut-off event [2022-07-12 10:23:37,827 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-07-12 10:23:37,852 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][167], [Black: 253#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 231#(= ~result_7~0 0), Black: 255#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_~cond#1| 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 242#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 66#L56-18true, 57#L74-4true, 106#L50-18true, 228#true, 202#L44-6true, 270#(and (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))))]) [2022-07-12 10:23:37,852 INFO L384 tUnfolder$Statistics]: this new event has 72 ancestors and is cut-off event [2022-07-12 10:23:37,852 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-07-12 10:23:37,852 INFO L387 tUnfolder$Statistics]: existing Event has 66 ancestors and is cut-off event [2022-07-12 10:23:37,853 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-07-12 10:23:38,286 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][167], [Black: 253#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), 106#L50-18true, Black: 231#(= ~result_7~0 0), Black: 255#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_~cond#1| 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 242#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 66#L56-18true, 228#true, 87#L75-2true, 270#(and (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))))]) [2022-07-12 10:23:38,286 INFO L384 tUnfolder$Statistics]: this new event has 84 ancestors and is cut-off event [2022-07-12 10:23:38,287 INFO L387 tUnfolder$Statistics]: existing Event has 80 ancestors and is cut-off event [2022-07-12 10:23:38,287 INFO L387 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-07-12 10:23:38,287 INFO L387 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2022-07-12 10:23:38,393 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][167], [Black: 253#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 231#(= ~result_7~0 0), Black: 255#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_~cond#1| 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), 20#thread1ENTRYtrue, Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 242#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 66#L56-18true, 57#L74-4true, 106#L50-18true, 228#true, 270#(and (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))))]) [2022-07-12 10:23:38,394 INFO L384 tUnfolder$Statistics]: this new event has 91 ancestors and is cut-off event [2022-07-12 10:23:38,394 INFO L387 tUnfolder$Statistics]: existing Event has 67 ancestors and is cut-off event [2022-07-12 10:23:38,395 INFO L387 tUnfolder$Statistics]: existing Event has 65 ancestors and is cut-off event [2022-07-12 10:23:38,395 INFO L387 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-07-12 10:23:38,406 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([581] L50-17-->L50-18: Formula: (= |v_thread2Thread1of1ForFork1_#t~ite8#1_3| v_~result_7~0_1) InVars {thread2Thread1of1ForFork1_#t~ite8#1=|v_thread2Thread1of1ForFork1_#t~ite8#1_3|} OutVars{thread2Thread1of1ForFork1_#t~ite8#1=|v_thread2Thread1of1ForFork1_#t~ite8#1_3|, ~result_7~0=v_~result_7~0_1} AuxVars[] AssignedVars[~result_7~0][220], [Black: 253#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 231#(= ~result_7~0 0), Black: 255#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_~cond#1| 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 242#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 66#L56-18true, 43#L44-8true, 57#L74-4true, 106#L50-18true, 228#true, 270#(and (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))))]) [2022-07-12 10:23:38,407 INFO L384 tUnfolder$Statistics]: this new event has 94 ancestors and is cut-off event [2022-07-12 10:23:38,407 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-07-12 10:23:38,407 INFO L387 tUnfolder$Statistics]: existing Event has 72 ancestors and is cut-off event [2022-07-12 10:23:38,408 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-07-12 10:23:38,408 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([581] L50-17-->L50-18: Formula: (= |v_thread2Thread1of1ForFork1_#t~ite8#1_3| v_~result_7~0_1) InVars {thread2Thread1of1ForFork1_#t~ite8#1=|v_thread2Thread1of1ForFork1_#t~ite8#1_3|} OutVars{thread2Thread1of1ForFork1_#t~ite8#1=|v_thread2Thread1of1ForFork1_#t~ite8#1_3|, ~result_7~0=v_~result_7~0_1} AuxVars[] AssignedVars[~result_7~0][220], [Black: 253#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 231#(= ~result_7~0 0), Black: 255#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_~cond#1| 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 242#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 66#L56-18true, 150#L44-5true, 57#L74-4true, 106#L50-18true, 228#true, 270#(and (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))))]) [2022-07-12 10:23:38,408 INFO L384 tUnfolder$Statistics]: this new event has 93 ancestors and is cut-off event [2022-07-12 10:23:38,408 INFO L387 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-07-12 10:23:38,409 INFO L387 tUnfolder$Statistics]: existing Event has 71 ancestors and is cut-off event [2022-07-12 10:23:38,409 INFO L387 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-07-12 10:23:38,413 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][167], [Black: 253#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 231#(= ~result_7~0 0), Black: 255#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_~cond#1| 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 242#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 53#L44-2true, 66#L56-18true, 57#L74-4true, 106#L50-18true, 228#true, 270#(and (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))))]) [2022-07-12 10:23:38,413 INFO L384 tUnfolder$Statistics]: this new event has 92 ancestors and is cut-off event [2022-07-12 10:23:38,413 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-07-12 10:23:38,413 INFO L387 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2022-07-12 10:23:38,414 INFO L387 tUnfolder$Statistics]: existing Event has 66 ancestors and is cut-off event [2022-07-12 10:23:38,419 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][167], [Black: 253#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 231#(= ~result_7~0 0), Black: 255#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_~cond#1| 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 242#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 145#L44true, 66#L56-18true, 57#L74-4true, 106#L50-18true, 228#true, 270#(and (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))))]) [2022-07-12 10:23:38,419 INFO L384 tUnfolder$Statistics]: this new event has 92 ancestors and is cut-off event [2022-07-12 10:23:38,420 INFO L387 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2022-07-12 10:23:38,420 INFO L387 tUnfolder$Statistics]: existing Event has 66 ancestors and is cut-off event [2022-07-12 10:23:38,420 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-07-12 10:23:38,431 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([581] L50-17-->L50-18: Formula: (= |v_thread2Thread1of1ForFork1_#t~ite8#1_3| v_~result_7~0_1) InVars {thread2Thread1of1ForFork1_#t~ite8#1=|v_thread2Thread1of1ForFork1_#t~ite8#1_3|} OutVars{thread2Thread1of1ForFork1_#t~ite8#1=|v_thread2Thread1of1ForFork1_#t~ite8#1_3|, ~result_7~0=v_~result_7~0_1} AuxVars[] AssignedVars[~result_7~0][220], [Black: 253#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 231#(= ~result_7~0 0), Black: 255#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_~cond#1| 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 242#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 66#L56-18true, 57#L74-4true, 106#L50-18true, 228#true, 202#L44-6true, 270#(and (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))))]) [2022-07-12 10:23:38,432 INFO L384 tUnfolder$Statistics]: this new event has 94 ancestors and is cut-off event [2022-07-12 10:23:38,432 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-07-12 10:23:38,432 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-07-12 10:23:38,432 INFO L387 tUnfolder$Statistics]: existing Event has 72 ancestors and is cut-off event [2022-07-12 10:23:38,434 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][167], [Black: 253#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 231#(= ~result_7~0 0), Black: 255#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_~cond#1| 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 242#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 66#L56-18true, 150#L44-5true, 57#L74-4true, 106#L50-18true, 228#true, 270#(and (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))))]) [2022-07-12 10:23:38,434 INFO L384 tUnfolder$Statistics]: this new event has 93 ancestors and is cut-off event [2022-07-12 10:23:38,434 INFO L387 tUnfolder$Statistics]: existing Event has 71 ancestors and is cut-off event [2022-07-12 10:23:38,434 INFO L387 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-07-12 10:23:38,435 INFO L387 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-07-12 10:23:38,435 INFO L387 tUnfolder$Statistics]: existing Event has 65 ancestors and is cut-off event [2022-07-12 10:23:38,435 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][167], [Black: 253#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 231#(= ~result_7~0 0), Black: 255#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_~cond#1| 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 242#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 66#L56-18true, 43#L44-8true, 57#L74-4true, 106#L50-18true, 228#true, 270#(and (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))))]) [2022-07-12 10:23:38,435 INFO L384 tUnfolder$Statistics]: this new event has 94 ancestors and is cut-off event [2022-07-12 10:23:38,436 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-07-12 10:23:38,436 INFO L387 tUnfolder$Statistics]: existing Event has 66 ancestors and is cut-off event [2022-07-12 10:23:38,436 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-07-12 10:23:38,436 INFO L387 tUnfolder$Statistics]: existing Event has 72 ancestors and is cut-off event [2022-07-12 10:23:38,438 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][167], [Black: 253#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), 170#L44-3true, Black: 231#(= ~result_7~0 0), Black: 255#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_~cond#1| 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 242#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 66#L56-18true, 57#L74-4true, 106#L50-18true, 228#true, 270#(and (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))))]) [2022-07-12 10:23:38,439 INFO L384 tUnfolder$Statistics]: this new event has 93 ancestors and is cut-off event [2022-07-12 10:23:38,439 INFO L387 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-07-12 10:23:38,440 INFO L387 tUnfolder$Statistics]: existing Event has 67 ancestors and is cut-off event [2022-07-12 10:23:38,440 INFO L387 tUnfolder$Statistics]: existing Event has 71 ancestors and is cut-off event [2022-07-12 10:23:38,450 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][167], [Black: 253#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 231#(= ~result_7~0 0), Black: 255#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_~cond#1| 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 242#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), 145#L44true, Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 66#L56-18true, 57#L74-4true, 106#L50-18true, 228#true, 270#(and (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))))]) [2022-07-12 10:23:38,451 INFO L384 tUnfolder$Statistics]: this new event has 90 ancestors and is cut-off event [2022-07-12 10:23:38,451 INFO L387 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2022-07-12 10:23:38,451 INFO L387 tUnfolder$Statistics]: existing Event has 66 ancestors and is cut-off event [2022-07-12 10:23:38,451 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-07-12 10:23:38,451 INFO L387 tUnfolder$Statistics]: existing Event has 92 ancestors and is cut-off event [2022-07-12 10:23:38,459 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][167], [Black: 253#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 231#(= ~result_7~0 0), Black: 255#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_~cond#1| 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 242#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 66#L56-18true, 57#L74-4true, 106#L50-18true, 228#true, 202#L44-6true, 270#(and (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))))]) [2022-07-12 10:23:38,459 INFO L384 tUnfolder$Statistics]: this new event has 94 ancestors and is cut-off event [2022-07-12 10:23:38,459 INFO L387 tUnfolder$Statistics]: existing Event has 72 ancestors and is cut-off event [2022-07-12 10:23:38,459 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-07-12 10:23:38,460 INFO L387 tUnfolder$Statistics]: existing Event has 66 ancestors and is cut-off event [2022-07-12 10:23:38,460 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-07-12 10:23:38,469 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([581] L50-17-->L50-18: Formula: (= |v_thread2Thread1of1ForFork1_#t~ite8#1_3| v_~result_7~0_1) InVars {thread2Thread1of1ForFork1_#t~ite8#1=|v_thread2Thread1of1ForFork1_#t~ite8#1_3|} OutVars{thread2Thread1of1ForFork1_#t~ite8#1=|v_thread2Thread1of1ForFork1_#t~ite8#1_3|, ~result_7~0=v_~result_7~0_1} AuxVars[] AssignedVars[~result_7~0][220], [Black: 253#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 231#(= ~result_7~0 0), Black: 255#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_~cond#1| 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 242#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 145#L44true, 66#L56-18true, 57#L74-4true, 106#L50-18true, 228#true, 270#(and (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))))]) [2022-07-12 10:23:38,470 INFO L384 tUnfolder$Statistics]: this new event has 90 ancestors and is cut-off event [2022-07-12 10:23:38,470 INFO L387 tUnfolder$Statistics]: existing Event has 92 ancestors and is cut-off event [2022-07-12 10:23:38,470 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-07-12 10:23:38,470 INFO L387 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2022-07-12 10:23:38,601 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([581] L50-17-->L50-18: Formula: (= |v_thread2Thread1of1ForFork1_#t~ite8#1_3| v_~result_7~0_1) InVars {thread2Thread1of1ForFork1_#t~ite8#1=|v_thread2Thread1of1ForFork1_#t~ite8#1_3|} OutVars{thread2Thread1of1ForFork1_#t~ite8#1=|v_thread2Thread1of1ForFork1_#t~ite8#1_3|, ~result_7~0=v_~result_7~0_1} AuxVars[] AssignedVars[~result_7~0][220], [Black: 253#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), 106#L50-18true, Black: 231#(= ~result_7~0 0), Black: 255#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_~cond#1| 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 242#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 66#L56-18true, 87#L75-2true, 228#true, 270#(and (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))))]) [2022-07-12 10:23:38,602 INFO L384 tUnfolder$Statistics]: this new event has 104 ancestors and is cut-off event [2022-07-12 10:23:38,602 INFO L387 tUnfolder$Statistics]: existing Event has 84 ancestors and is cut-off event [2022-07-12 10:23:38,602 INFO L387 tUnfolder$Statistics]: existing Event has 80 ancestors and is cut-off event [2022-07-12 10:23:38,602 INFO L387 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2022-07-12 10:23:38,607 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][167], [Black: 253#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), 106#L50-18true, Black: 231#(= ~result_7~0 0), Black: 255#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_~cond#1| 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 242#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 66#L56-18true, 228#true, 87#L75-2true, 270#(and (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))))]) [2022-07-12 10:23:38,608 INFO L384 tUnfolder$Statistics]: this new event has 104 ancestors and is cut-off event [2022-07-12 10:23:38,608 INFO L387 tUnfolder$Statistics]: existing Event has 84 ancestors and is cut-off event [2022-07-12 10:23:38,608 INFO L387 tUnfolder$Statistics]: existing Event has 80 ancestors and is cut-off event [2022-07-12 10:23:38,608 INFO L387 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-07-12 10:23:38,609 INFO L387 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2022-07-12 10:23:38,644 INFO L129 PetriNetUnfolder]: 1284/8217 cut-off events. [2022-07-12 10:23:38,645 INFO L130 PetriNetUnfolder]: For 972/1265 co-relation queries the response was YES. [2022-07-12 10:23:38,693 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12135 conditions, 8217 events. 1284/8217 cut-off events. For 972/1265 co-relation queries the response was YES. Maximal size of possible extension queue 419. Compared 100442 event pairs, 225 based on Foata normal form. 49/7228 useless extension candidates. Maximal degree in co-relation 12089. Up to 784 conditions per place. [2022-07-12 10:23:38,725 INFO L132 encePairwiseOnDemand]: 215/232 looper letters, 79 selfloop transitions, 28 changer transitions 0/299 dead transitions. [2022-07-12 10:23:38,726 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 299 transitions, 924 flow [2022-07-12 10:23:38,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 10:23:38,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-07-12 10:23:38,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1462 transitions. [2022-07-12 10:23:38,730 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.9002463054187192 [2022-07-12 10:23:38,730 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1462 transitions. [2022-07-12 10:23:38,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1462 transitions. [2022-07-12 10:23:38,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:23:38,731 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1462 transitions. [2022-07-12 10:23:38,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 208.85714285714286) internal successors, (1462), 7 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:38,738 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 232.0) internal successors, (1856), 8 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:38,739 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 232.0) internal successors, (1856), 8 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:38,739 INFO L186 Difference]: Start difference. First operand has 224 places, 222 transitions, 535 flow. Second operand 7 states and 1462 transitions. [2022-07-12 10:23:38,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 299 transitions, 924 flow [2022-07-12 10:23:38,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 299 transitions, 920 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-07-12 10:23:38,776 INFO L242 Difference]: Finished difference. Result has 227 places, 250 transitions, 745 flow [2022-07-12 10:23:38,777 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=531, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=745, PETRI_PLACES=227, PETRI_TRANSITIONS=250} [2022-07-12 10:23:38,778 INFO L279 CegarLoopForPetriNet]: 211 programPoint places, 16 predicate places. [2022-07-12 10:23:38,779 INFO L495 AbstractCegarLoop]: Abstraction has has 227 places, 250 transitions, 745 flow [2022-07-12 10:23:38,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:38,783 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:23:38,783 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:23:38,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 10:23:38,784 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-12 10:23:38,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:23:38,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1790151827, now seen corresponding path program 2 times [2022-07-12 10:23:38,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:23:38,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349949488] [2022-07-12 10:23:38,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:23:38,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:23:38,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:23:38,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:23:38,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:23:38,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349949488] [2022-07-12 10:23:38,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349949488] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:23:38,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:23:38,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 10:23:38,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721054706] [2022-07-12 10:23:38,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:23:38,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 10:23:38,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:23:38,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 10:23:38,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-07-12 10:23:38,916 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2022-07-12 10:23:38,917 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 250 transitions, 745 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:38,918 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:23:38,918 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2022-07-12 10:23:38,918 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:23:40,040 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][170], [Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 231#(= ~result_7~0 0), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 242#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 66#L56-18true, 87#L75-2true, 106#L50-18true, Black: 268#(= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0), Black: 266#(or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 267#(or (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 273#(and (or (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 264#true, 228#true, 270#(and (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), 285#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0))]) [2022-07-12 10:23:40,040 INFO L384 tUnfolder$Statistics]: this new event has 84 ancestors and is cut-off event [2022-07-12 10:23:40,040 INFO L387 tUnfolder$Statistics]: existing Event has 80 ancestors and is cut-off event [2022-07-12 10:23:40,041 INFO L387 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-07-12 10:23:40,041 INFO L387 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2022-07-12 10:23:40,181 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][170], [Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 231#(= ~result_7~0 0), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 242#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 145#L44true, 66#L56-18true, 57#L74-4true, 106#L50-18true, Black: 268#(= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0), Black: 266#(or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 267#(or (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 273#(and (or (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 264#true, 228#true, 270#(and (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), 285#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0))]) [2022-07-12 10:23:40,181 INFO L384 tUnfolder$Statistics]: this new event has 90 ancestors and is cut-off event [2022-07-12 10:23:40,182 INFO L387 tUnfolder$Statistics]: existing Event has 66 ancestors and is cut-off event [2022-07-12 10:23:40,182 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-07-12 10:23:40,182 INFO L387 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2022-07-12 10:23:40,187 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][170], [Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 231#(= ~result_7~0 0), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 242#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 66#L56-18true, 150#L44-5true, 57#L74-4true, 106#L50-18true, Black: 268#(= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0), Black: 266#(or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 267#(or (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 273#(and (or (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 264#true, 228#true, 270#(and (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), 285#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0))]) [2022-07-12 10:23:40,188 INFO L384 tUnfolder$Statistics]: this new event has 93 ancestors and is cut-off event [2022-07-12 10:23:40,188 INFO L387 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-07-12 10:23:40,188 INFO L387 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-07-12 10:23:40,188 INFO L387 tUnfolder$Statistics]: existing Event has 65 ancestors and is cut-off event [2022-07-12 10:23:40,201 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][170], [Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 231#(= ~result_7~0 0), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 242#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 66#L56-18true, 57#L74-4true, 106#L50-18true, Black: 268#(= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0), Black: 266#(or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 267#(or (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 273#(and (or (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 264#true, 228#true, 270#(and (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), 202#L44-6true, 285#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0))]) [2022-07-12 10:23:40,202 INFO L384 tUnfolder$Statistics]: this new event has 94 ancestors and is cut-off event [2022-07-12 10:23:40,202 INFO L387 tUnfolder$Statistics]: existing Event has 66 ancestors and is cut-off event [2022-07-12 10:23:40,202 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-07-12 10:23:40,202 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-07-12 10:23:40,357 INFO L129 PetriNetUnfolder]: 1520/10118 cut-off events. [2022-07-12 10:23:40,358 INFO L130 PetriNetUnfolder]: For 2801/3105 co-relation queries the response was YES. [2022-07-12 10:23:40,439 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16565 conditions, 10118 events. 1520/10118 cut-off events. For 2801/3105 co-relation queries the response was YES. Maximal size of possible extension queue 466. Compared 127372 event pairs, 396 based on Foata normal form. 77/9595 useless extension candidates. Maximal degree in co-relation 13676. Up to 1227 conditions per place. [2022-07-12 10:23:40,483 INFO L132 encePairwiseOnDemand]: 215/232 looper letters, 102 selfloop transitions, 32 changer transitions 9/331 dead transitions. [2022-07-12 10:23:40,484 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 331 transitions, 1409 flow [2022-07-12 10:23:40,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 10:23:40,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-07-12 10:23:40,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1055 transitions. [2022-07-12 10:23:40,487 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.9094827586206896 [2022-07-12 10:23:40,487 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1055 transitions. [2022-07-12 10:23:40,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1055 transitions. [2022-07-12 10:23:40,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:23:40,488 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1055 transitions. [2022-07-12 10:23:40,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 211.0) internal successors, (1055), 5 states have internal predecessors, (1055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:40,494 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:40,495 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:40,495 INFO L186 Difference]: Start difference. First operand has 227 places, 250 transitions, 745 flow. Second operand 5 states and 1055 transitions. [2022-07-12 10:23:40,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 331 transitions, 1409 flow [2022-07-12 10:23:40,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 331 transitions, 1409 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-07-12 10:23:40,623 INFO L242 Difference]: Finished difference. Result has 235 places, 271 transitions, 1039 flow [2022-07-12 10:23:40,624 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=745, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1039, PETRI_PLACES=235, PETRI_TRANSITIONS=271} [2022-07-12 10:23:40,631 INFO L279 CegarLoopForPetriNet]: 211 programPoint places, 24 predicate places. [2022-07-12 10:23:40,631 INFO L495 AbstractCegarLoop]: Abstraction has has 235 places, 271 transitions, 1039 flow [2022-07-12 10:23:40,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:40,632 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:23:40,633 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:23:40,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 10:23:40,633 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-12 10:23:40,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:23:40,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1777024895, now seen corresponding path program 3 times [2022-07-12 10:23:40,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:23:40,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055891166] [2022-07-12 10:23:40,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:23:40,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:23:40,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:23:40,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:23:40,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:23:40,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055891166] [2022-07-12 10:23:40,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055891166] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:23:40,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:23:40,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 10:23:40,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161296405] [2022-07-12 10:23:40,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:23:40,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 10:23:40,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:23:40,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 10:23:40,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 10:23:40,773 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2022-07-12 10:23:40,774 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 271 transitions, 1039 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:40,774 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:23:40,774 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2022-07-12 10:23:40,775 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:23:42,078 INFO L129 PetriNetUnfolder]: 1328/9091 cut-off events. [2022-07-12 10:23:42,079 INFO L130 PetriNetUnfolder]: For 4640/4953 co-relation queries the response was YES. [2022-07-12 10:23:42,145 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16024 conditions, 9091 events. 1328/9091 cut-off events. For 4640/4953 co-relation queries the response was YES. Maximal size of possible extension queue 441. Compared 112340 event pairs, 338 based on Foata normal form. 113/8715 useless extension candidates. Maximal degree in co-relation 13344. Up to 1209 conditions per place. [2022-07-12 10:23:42,187 INFO L132 encePairwiseOnDemand]: 217/232 looper letters, 124 selfloop transitions, 19 changer transitions 4/335 dead transitions. [2022-07-12 10:23:42,187 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 335 transitions, 1755 flow [2022-07-12 10:23:42,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 10:23:42,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-07-12 10:23:42,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1043 transitions. [2022-07-12 10:23:42,191 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8991379310344828 [2022-07-12 10:23:42,191 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1043 transitions. [2022-07-12 10:23:42,191 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1043 transitions. [2022-07-12 10:23:42,192 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:23:42,192 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1043 transitions. [2022-07-12 10:23:42,194 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 208.6) internal successors, (1043), 5 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:42,197 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:42,197 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:42,198 INFO L186 Difference]: Start difference. First operand has 235 places, 271 transitions, 1039 flow. Second operand 5 states and 1043 transitions. [2022-07-12 10:23:42,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 335 transitions, 1755 flow [2022-07-12 10:23:42,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 335 transitions, 1749 flow, removed 3 selfloop flow, removed 1 redundant places. [2022-07-12 10:23:42,234 INFO L242 Difference]: Finished difference. Result has 241 places, 286 transitions, 1299 flow [2022-07-12 10:23:42,235 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=1033, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1299, PETRI_PLACES=241, PETRI_TRANSITIONS=286} [2022-07-12 10:23:42,237 INFO L279 CegarLoopForPetriNet]: 211 programPoint places, 30 predicate places. [2022-07-12 10:23:42,237 INFO L495 AbstractCegarLoop]: Abstraction has has 241 places, 286 transitions, 1299 flow [2022-07-12 10:23:42,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:42,238 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:23:42,239 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:23:42,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 10:23:42,241 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-12 10:23:42,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:23:42,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1427730761, now seen corresponding path program 1 times [2022-07-12 10:23:42,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:23:42,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467566454] [2022-07-12 10:23:42,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:23:42,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:23:42,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:23:42,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:23:42,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:23:42,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467566454] [2022-07-12 10:23:42,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467566454] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:23:42,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:23:42,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 10:23:42,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826183982] [2022-07-12 10:23:42,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:23:42,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 10:23:42,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:23:42,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 10:23:42,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-07-12 10:23:42,508 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2022-07-12 10:23:42,509 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 286 transitions, 1299 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:42,509 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:23:42,510 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2022-07-12 10:23:42,510 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:23:43,778 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][192], [Black: 282#true, Black: 286#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))), Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 284#(or (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 231#(= ~result_7~0 0), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 66#L56-18true, 87#L75-2true, Black: 298#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256))) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), Black: 292#true, Black: 295#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (not (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0))), 106#L50-18true, Black: 268#(= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0), Black: 266#(or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 267#(or (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 273#(and (or (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 264#true, 309#(= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0), 294#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), 228#true, 270#(and (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), 285#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0))]) [2022-07-12 10:23:43,778 INFO L384 tUnfolder$Statistics]: this new event has 106 ancestors and is cut-off event [2022-07-12 10:23:43,778 INFO L387 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-07-12 10:23:43,778 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2022-07-12 10:23:43,778 INFO L387 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2022-07-12 10:23:43,857 INFO L129 PetriNetUnfolder]: 1403/10491 cut-off events. [2022-07-12 10:23:43,858 INFO L130 PetriNetUnfolder]: For 6905/7320 co-relation queries the response was YES. [2022-07-12 10:23:43,937 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18726 conditions, 10491 events. 1403/10491 cut-off events. For 6905/7320 co-relation queries the response was YES. Maximal size of possible extension queue 499. Compared 134686 event pairs, 345 based on Foata normal form. 128/10069 useless extension candidates. Maximal degree in co-relation 14671. Up to 923 conditions per place. [2022-07-12 10:23:43,978 INFO L132 encePairwiseOnDemand]: 216/232 looper letters, 141 selfloop transitions, 42 changer transitions 4/375 dead transitions. [2022-07-12 10:23:43,979 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 375 transitions, 2375 flow [2022-07-12 10:23:43,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 10:23:43,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-07-12 10:23:43,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1054 transitions. [2022-07-12 10:23:43,982 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.9086206896551724 [2022-07-12 10:23:43,982 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1054 transitions. [2022-07-12 10:23:43,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1054 transitions. [2022-07-12 10:23:43,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:23:43,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1054 transitions. [2022-07-12 10:23:43,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 210.8) internal successors, (1054), 5 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:43,988 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:43,988 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:43,988 INFO L186 Difference]: Start difference. First operand has 241 places, 286 transitions, 1299 flow. Second operand 5 states and 1054 transitions. [2022-07-12 10:23:43,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 375 transitions, 2375 flow [2022-07-12 10:23:44,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 375 transitions, 2375 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-07-12 10:23:44,024 INFO L242 Difference]: Finished difference. Result has 249 places, 315 transitions, 1769 flow [2022-07-12 10:23:44,025 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=1299, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=286, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=250, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1769, PETRI_PLACES=249, PETRI_TRANSITIONS=315} [2022-07-12 10:23:44,026 INFO L279 CegarLoopForPetriNet]: 211 programPoint places, 38 predicate places. [2022-07-12 10:23:44,026 INFO L495 AbstractCegarLoop]: Abstraction has has 249 places, 315 transitions, 1769 flow [2022-07-12 10:23:44,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:44,027 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:23:44,027 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:23:44,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 10:23:44,027 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-12 10:23:44,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:23:44,028 INFO L85 PathProgramCache]: Analyzing trace with hash -737967317, now seen corresponding path program 4 times [2022-07-12 10:23:44,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:23:44,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321452420] [2022-07-12 10:23:44,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:23:44,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:23:44,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:23:44,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:23:44,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:23:44,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321452420] [2022-07-12 10:23:44,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321452420] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:23:44,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:23:44,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 10:23:44,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331703140] [2022-07-12 10:23:44,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:23:44,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 10:23:44,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:23:44,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 10:23:44,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-07-12 10:23:44,138 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2022-07-12 10:23:44,139 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 315 transitions, 1769 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:44,139 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:23:44,139 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2022-07-12 10:23:44,139 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:23:45,363 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][184], [Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 231#(= ~result_7~0 0), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 66#L56-18true, 87#L75-2true, 106#L50-18true, Black: 268#(= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0), Black: 266#(or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 267#(or (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 273#(and (or (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 264#true, 318#(or (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256))))), 228#true, 270#(and (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), 285#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 282#true, Black: 286#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))), Black: 284#(or (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 298#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256))) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), Black: 292#true, Black: 295#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (not (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0))), Black: 308#(or (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 294#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), 309#(= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0), Black: 307#(or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= (+ ~sort_label_is_null_5~0 (* (- 256) (div ~sort_label_is_null_5~0 256))) 0)) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), Black: 305#true]) [2022-07-12 10:23:45,363 INFO L384 tUnfolder$Statistics]: this new event has 106 ancestors and is cut-off event [2022-07-12 10:23:45,363 INFO L387 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-07-12 10:23:45,363 INFO L387 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2022-07-12 10:23:45,363 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2022-07-12 10:23:45,457 INFO L129 PetriNetUnfolder]: 1478/12213 cut-off events. [2022-07-12 10:23:45,457 INFO L130 PetriNetUnfolder]: For 10618/11054 co-relation queries the response was YES. [2022-07-12 10:23:45,557 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22260 conditions, 12213 events. 1478/12213 cut-off events. For 10618/11054 co-relation queries the response was YES. Maximal size of possible extension queue 546. Compared 161854 event pairs, 394 based on Foata normal form. 95/11661 useless extension candidates. Maximal degree in co-relation 17446. Up to 1268 conditions per place. [2022-07-12 10:23:45,611 INFO L132 encePairwiseOnDemand]: 217/232 looper letters, 141 selfloop transitions, 44 changer transitions 4/377 dead transitions. [2022-07-12 10:23:45,612 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 377 transitions, 2697 flow [2022-07-12 10:23:45,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 10:23:45,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-07-12 10:23:45,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1041 transitions. [2022-07-12 10:23:45,615 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8974137931034483 [2022-07-12 10:23:45,615 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1041 transitions. [2022-07-12 10:23:45,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1041 transitions. [2022-07-12 10:23:45,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:23:45,616 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1041 transitions. [2022-07-12 10:23:45,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 208.2) internal successors, (1041), 5 states have internal predecessors, (1041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:45,620 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:45,621 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:45,621 INFO L186 Difference]: Start difference. First operand has 249 places, 315 transitions, 1769 flow. Second operand 5 states and 1041 transitions. [2022-07-12 10:23:45,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 377 transitions, 2697 flow [2022-07-12 10:23:45,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 377 transitions, 2679 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-07-12 10:23:45,678 INFO L242 Difference]: Finished difference. Result has 256 places, 332 transitions, 2176 flow [2022-07-12 10:23:45,679 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=1757, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=2176, PETRI_PLACES=256, PETRI_TRANSITIONS=332} [2022-07-12 10:23:45,681 INFO L279 CegarLoopForPetriNet]: 211 programPoint places, 45 predicate places. [2022-07-12 10:23:45,681 INFO L495 AbstractCegarLoop]: Abstraction has has 256 places, 332 transitions, 2176 flow [2022-07-12 10:23:45,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:45,682 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:23:45,682 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:23:45,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 10:23:45,683 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-12 10:23:45,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:23:45,683 INFO L85 PathProgramCache]: Analyzing trace with hash 2043090721, now seen corresponding path program 5 times [2022-07-12 10:23:45,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:23:45,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768685860] [2022-07-12 10:23:45,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:23:45,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:23:45,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:23:45,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:23:45,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:23:45,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768685860] [2022-07-12 10:23:45,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768685860] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:23:45,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:23:45,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 10:23:45,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031049787] [2022-07-12 10:23:45,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:23:45,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 10:23:45,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:23:45,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 10:23:45,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-07-12 10:23:45,835 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2022-07-12 10:23:45,836 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 332 transitions, 2176 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:45,836 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:23:45,836 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2022-07-12 10:23:45,836 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:23:46,915 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][184], [Black: 319#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))), Black: 317#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 231#(= ~result_7~0 0), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 66#L56-18true, 87#L75-2true, 106#L50-18true, Black: 268#(= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0), Black: 266#(or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 267#(or (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 273#(and (or (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 264#true, 318#(or (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256))))), 228#true, 285#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), 270#(and (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 282#true, Black: 286#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))), Black: 284#(or (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), 328#(= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0), Black: 298#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256))) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), Black: 292#true, Black: 295#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (not (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0))), Black: 308#(or (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 309#(= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0), 294#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 307#(or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= (+ ~sort_label_is_null_5~0 (* (- 256) (div ~sort_label_is_null_5~0 256))) 0)) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), Black: 305#true]) [2022-07-12 10:23:46,915 INFO L384 tUnfolder$Statistics]: this new event has 106 ancestors and is cut-off event [2022-07-12 10:23:46,915 INFO L387 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-07-12 10:23:46,915 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2022-07-12 10:23:46,915 INFO L387 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2022-07-12 10:23:46,990 INFO L129 PetriNetUnfolder]: 1441/11765 cut-off events. [2022-07-12 10:23:46,990 INFO L130 PetriNetUnfolder]: For 13031/13436 co-relation queries the response was YES. [2022-07-12 10:23:47,078 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22080 conditions, 11765 events. 1441/11765 cut-off events. For 13031/13436 co-relation queries the response was YES. Maximal size of possible extension queue 530. Compared 155057 event pairs, 351 based on Foata normal form. 104/11255 useless extension candidates. Maximal degree in co-relation 17987. Up to 1120 conditions per place. [2022-07-12 10:23:47,127 INFO L132 encePairwiseOnDemand]: 216/232 looper letters, 144 selfloop transitions, 58 changer transitions 1/391 dead transitions. [2022-07-12 10:23:47,127 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 391 transitions, 3064 flow [2022-07-12 10:23:47,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 10:23:47,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-07-12 10:23:47,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1051 transitions. [2022-07-12 10:23:47,130 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.9060344827586206 [2022-07-12 10:23:47,130 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1051 transitions. [2022-07-12 10:23:47,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1051 transitions. [2022-07-12 10:23:47,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:23:47,131 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1051 transitions. [2022-07-12 10:23:47,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 210.2) internal successors, (1051), 5 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:47,135 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:47,136 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:47,136 INFO L186 Difference]: Start difference. First operand has 256 places, 332 transitions, 2176 flow. Second operand 5 states and 1051 transitions. [2022-07-12 10:23:47,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 391 transitions, 3064 flow [2022-07-12 10:23:47,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 391 transitions, 3051 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-07-12 10:23:47,200 INFO L242 Difference]: Finished difference. Result has 261 places, 344 transitions, 2502 flow [2022-07-12 10:23:47,201 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=2129, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=330, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=2502, PETRI_PLACES=261, PETRI_TRANSITIONS=344} [2022-07-12 10:23:47,202 INFO L279 CegarLoopForPetriNet]: 211 programPoint places, 50 predicate places. [2022-07-12 10:23:47,202 INFO L495 AbstractCegarLoop]: Abstraction has has 261 places, 344 transitions, 2502 flow [2022-07-12 10:23:47,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:47,202 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:23:47,203 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:23:47,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 10:23:47,203 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-12 10:23:47,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:23:47,204 INFO L85 PathProgramCache]: Analyzing trace with hash 774037361, now seen corresponding path program 6 times [2022-07-12 10:23:47,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:23:47,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506727047] [2022-07-12 10:23:47,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:23:47,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:23:47,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:23:47,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:23:47,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:23:47,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506727047] [2022-07-12 10:23:47,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506727047] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:23:47,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:23:47,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 10:23:47,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625295132] [2022-07-12 10:23:47,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:23:47,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 10:23:47,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:23:47,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 10:23:47,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-07-12 10:23:47,330 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2022-07-12 10:23:47,333 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 344 transitions, 2502 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:47,333 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:23:47,333 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2022-07-12 10:23:47,333 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:23:48,551 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][190], [Black: 319#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))), Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 317#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 231#(= ~result_7~0 0), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 66#L56-18true, Black: 327#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), 87#L75-2true, 106#L50-18true, Black: 268#(= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0), Black: 266#(or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 267#(or (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 273#(and (or (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 264#true, 318#(or (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256))))), 228#true, 270#(and (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), 285#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 282#true, Black: 286#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))), Black: 284#(or (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), 336#(= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0), 328#(= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0), Black: 298#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256))) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), Black: 292#true, Black: 295#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (not (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0))), Black: 308#(or (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 294#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), 309#(= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0), Black: 307#(or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= (+ ~sort_label_is_null_5~0 (* (- 256) (div ~sort_label_is_null_5~0 256))) 0)) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), Black: 305#true]) [2022-07-12 10:23:48,551 INFO L384 tUnfolder$Statistics]: this new event has 106 ancestors and is cut-off event [2022-07-12 10:23:48,551 INFO L387 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2022-07-12 10:23:48,551 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2022-07-12 10:23:48,551 INFO L387 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-07-12 10:23:48,640 INFO L129 PetriNetUnfolder]: 1438/10948 cut-off events. [2022-07-12 10:23:48,641 INFO L130 PetriNetUnfolder]: For 15590/16042 co-relation queries the response was YES. [2022-07-12 10:23:48,745 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21765 conditions, 10948 events. 1438/10948 cut-off events. For 15590/16042 co-relation queries the response was YES. Maximal size of possible extension queue 520. Compared 141760 event pairs, 483 based on Foata normal form. 76/10429 useless extension candidates. Maximal degree in co-relation 18108. Up to 1088 conditions per place. [2022-07-12 10:23:48,793 INFO L132 encePairwiseOnDemand]: 218/232 looper letters, 162 selfloop transitions, 64 changer transitions 0/414 dead transitions. [2022-07-12 10:23:48,794 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 414 transitions, 3644 flow [2022-07-12 10:23:48,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 10:23:48,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-07-12 10:23:48,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1049 transitions. [2022-07-12 10:23:48,797 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.9043103448275862 [2022-07-12 10:23:48,797 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1049 transitions. [2022-07-12 10:23:48,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1049 transitions. [2022-07-12 10:23:48,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:23:48,798 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1049 transitions. [2022-07-12 10:23:48,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 209.8) internal successors, (1049), 5 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) [2022-07-12 10:23:48,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:48,803 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:48,803 INFO L186 Difference]: Start difference. First operand has 261 places, 344 transitions, 2502 flow. Second operand 5 states and 1049 transitions. [2022-07-12 10:23:48,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 265 places, 414 transitions, 3644 flow [2022-07-12 10:23:48,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 414 transitions, 3533 flow, removed 1 selfloop flow, removed 3 redundant places. [2022-07-12 10:23:48,882 INFO L242 Difference]: Finished difference. Result has 266 places, 370 transitions, 3017 flow [2022-07-12 10:23:48,883 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=2408, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=344, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=3017, PETRI_PLACES=266, PETRI_TRANSITIONS=370} [2022-07-12 10:23:48,885 INFO L279 CegarLoopForPetriNet]: 211 programPoint places, 55 predicate places. [2022-07-12 10:23:48,885 INFO L495 AbstractCegarLoop]: Abstraction has has 266 places, 370 transitions, 3017 flow [2022-07-12 10:23:48,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:48,886 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:23:48,886 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:23:48,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 10:23:48,887 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-12 10:23:48,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:23:48,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1011075125, now seen corresponding path program 2 times [2022-07-12 10:23:48,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:23:48,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579967012] [2022-07-12 10:23:48,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:23:48,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:23:48,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:23:49,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:23:49,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:23:49,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579967012] [2022-07-12 10:23:49,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579967012] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:23:49,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:23:49,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 10:23:49,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345953830] [2022-07-12 10:23:49,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:23:49,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 10:23:49,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:23:49,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 10:23:49,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-07-12 10:23:49,034 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2022-07-12 10:23:49,035 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 370 transitions, 3017 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:49,035 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:23:49,036 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2022-07-12 10:23:49,036 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:23:50,594 INFO L129 PetriNetUnfolder]: 1542/11980 cut-off events. [2022-07-12 10:23:50,595 INFO L130 PetriNetUnfolder]: For 20932/21458 co-relation queries the response was YES. [2022-07-12 10:23:50,689 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24484 conditions, 11980 events. 1542/11980 cut-off events. For 20932/21458 co-relation queries the response was YES. Maximal size of possible extension queue 578. Compared 159512 event pairs, 418 based on Foata normal form. 91/11469 useless extension candidates. Maximal degree in co-relation 20220. Up to 1128 conditions per place. [2022-07-12 10:23:50,732 INFO L132 encePairwiseOnDemand]: 218/232 looper letters, 210 selfloop transitions, 49 changer transitions 5/452 dead transitions. [2022-07-12 10:23:50,732 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 452 transitions, 4493 flow [2022-07-12 10:23:50,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 10:23:50,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-07-12 10:23:50,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1047 transitions. [2022-07-12 10:23:50,736 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.9025862068965518 [2022-07-12 10:23:50,736 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1047 transitions. [2022-07-12 10:23:50,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1047 transitions. [2022-07-12 10:23:50,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:23:50,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1047 transitions. [2022-07-12 10:23:50,739 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 209.4) internal successors, (1047), 5 states have internal predecessors, (1047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:50,741 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:50,741 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:50,741 INFO L186 Difference]: Start difference. First operand has 266 places, 370 transitions, 3017 flow. Second operand 5 states and 1047 transitions. [2022-07-12 10:23:50,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 452 transitions, 4493 flow [2022-07-12 10:23:50,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 269 places, 452 transitions, 4448 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-07-12 10:23:50,842 INFO L242 Difference]: Finished difference. Result has 272 places, 385 transitions, 3377 flow [2022-07-12 10:23:50,843 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=2980, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=370, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=321, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=3377, PETRI_PLACES=272, PETRI_TRANSITIONS=385} [2022-07-12 10:23:50,843 INFO L279 CegarLoopForPetriNet]: 211 programPoint places, 61 predicate places. [2022-07-12 10:23:50,844 INFO L495 AbstractCegarLoop]: Abstraction has has 272 places, 385 transitions, 3377 flow [2022-07-12 10:23:50,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:50,844 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:23:50,844 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:23:50,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 10:23:50,845 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-12 10:23:50,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:23:50,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1753285481, now seen corresponding path program 3 times [2022-07-12 10:23:50,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:23:50,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049513271] [2022-07-12 10:23:50,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:23:50,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:23:50,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:23:50,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:23:50,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:23:50,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049513271] [2022-07-12 10:23:50,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049513271] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:23:50,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:23:50,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 10:23:50,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91772161] [2022-07-12 10:23:50,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:23:50,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 10:23:50,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:23:50,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 10:23:50,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-07-12 10:23:50,923 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2022-07-12 10:23:50,924 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 385 transitions, 3377 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:50,924 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:23:50,924 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2022-07-12 10:23:50,924 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:23:52,025 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][202], [Black: 319#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))), Black: 317#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 231#(= ~result_7~0 0), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 66#L56-18true, Black: 327#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), 345#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)), 106#L50-18true, Black: 334#(or (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 332#true, Black: 268#(= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0), Black: 266#(or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 335#(or (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 267#(or (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 273#(and (or (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 264#true, 318#(or (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256))))), Black: 346#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), Black: 344#(or (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), 228#true, 285#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), 270#(and (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 282#true, Black: 286#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))), Black: 284#(or (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), 43#L44-8true, Black: 298#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256))) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), Black: 292#true, Black: 295#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (not (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0))), 57#L74-4true, Black: 308#(or (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 294#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), 309#(= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0), Black: 307#(or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= (+ ~sort_label_is_null_5~0 (* (- 256) (div ~sort_label_is_null_5~0 256))) 0)) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), Black: 305#true, 355#(= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)]) [2022-07-12 10:23:52,026 INFO L384 tUnfolder$Statistics]: this new event has 94 ancestors and is cut-off event [2022-07-12 10:23:52,026 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-07-12 10:23:52,026 INFO L387 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2022-07-12 10:23:52,026 INFO L387 tUnfolder$Statistics]: existing Event has 72 ancestors and is cut-off event [2022-07-12 10:23:52,254 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][202], [Black: 319#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))), Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 317#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 231#(= ~result_7~0 0), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 66#L56-18true, Black: 327#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), 345#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)), 87#L75-2true, 106#L50-18true, Black: 334#(or (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 332#true, Black: 268#(= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0), Black: 266#(or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 335#(or (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 267#(or (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 273#(and (or (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 264#true, 318#(or (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256))))), Black: 346#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), 228#true, Black: 344#(or (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), 285#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), 270#(and (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 282#true, Black: 286#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))), Black: 284#(or (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 298#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256))) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), Black: 292#true, Black: 295#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (not (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0))), Black: 308#(or (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 294#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), 309#(= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0), Black: 307#(or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= (+ ~sort_label_is_null_5~0 (* (- 256) (div ~sort_label_is_null_5~0 256))) 0)) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), Black: 305#true, 355#(= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)]) [2022-07-12 10:23:52,254 INFO L384 tUnfolder$Statistics]: this new event has 106 ancestors and is cut-off event [2022-07-12 10:23:52,254 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2022-07-12 10:23:52,254 INFO L387 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-07-12 10:23:52,254 INFO L387 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2022-07-12 10:23:52,356 INFO L129 PetriNetUnfolder]: 1649/13657 cut-off events. [2022-07-12 10:23:52,357 INFO L130 PetriNetUnfolder]: For 25409/25986 co-relation queries the response was YES. [2022-07-12 10:23:52,477 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27606 conditions, 13657 events. 1649/13657 cut-off events. For 25409/25986 co-relation queries the response was YES. Maximal size of possible extension queue 618. Compared 186480 event pairs, 353 based on Foata normal form. 129/13091 useless extension candidates. Maximal degree in co-relation 24773. Up to 1124 conditions per place. [2022-07-12 10:23:52,514 INFO L132 encePairwiseOnDemand]: 216/232 looper letters, 191 selfloop transitions, 80 changer transitions 5/464 dead transitions. [2022-07-12 10:23:52,514 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 464 transitions, 4806 flow [2022-07-12 10:23:52,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 10:23:52,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-07-12 10:23:52,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1050 transitions. [2022-07-12 10:23:52,517 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.9051724137931034 [2022-07-12 10:23:52,517 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1050 transitions. [2022-07-12 10:23:52,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1050 transitions. [2022-07-12 10:23:52,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:23:52,518 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1050 transitions. [2022-07-12 10:23:52,520 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 210.0) internal successors, (1050), 5 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:52,522 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:52,523 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:52,523 INFO L186 Difference]: Start difference. First operand has 272 places, 385 transitions, 3377 flow. Second operand 5 states and 1050 transitions. [2022-07-12 10:23:52,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 276 places, 464 transitions, 4806 flow [2022-07-12 10:23:52,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 464 transitions, 4780 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-07-12 10:23:52,651 INFO L242 Difference]: Finished difference. Result has 279 places, 409 transitions, 4035 flow [2022-07-12 10:23:52,653 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=3351, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=385, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=311, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=4035, PETRI_PLACES=279, PETRI_TRANSITIONS=409} [2022-07-12 10:23:52,653 INFO L279 CegarLoopForPetriNet]: 211 programPoint places, 68 predicate places. [2022-07-12 10:23:52,653 INFO L495 AbstractCegarLoop]: Abstraction has has 279 places, 409 transitions, 4035 flow [2022-07-12 10:23:52,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:52,660 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:23:52,660 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:23:52,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-12 10:23:52,661 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-12 10:23:52,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:23:52,661 INFO L85 PathProgramCache]: Analyzing trace with hash -376277763, now seen corresponding path program 4 times [2022-07-12 10:23:52,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:23:52,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849484170] [2022-07-12 10:23:52,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:23:52,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:23:52,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:23:52,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:23:52,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:23:52,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849484170] [2022-07-12 10:23:52,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849484170] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:23:52,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:23:52,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 10:23:52,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824747905] [2022-07-12 10:23:52,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:23:52,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 10:23:52,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:23:52,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 10:23:52,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-07-12 10:23:52,769 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2022-07-12 10:23:52,771 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 409 transitions, 4035 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:52,771 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:23:52,771 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2022-07-12 10:23:52,771 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:23:54,203 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][218], [Black: 319#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))), Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 317#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 231#(= ~result_7~0 0), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 66#L56-18true, 345#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)), Black: 327#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), 87#L75-2true, 365#(= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0), 106#L50-18true, Black: 334#(or (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (not (= ~sort_label_is_null_5~0 (* 256 (div 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~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)), Black: 351#true, Black: 298#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256))) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), Black: 292#true, Black: 295#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (not (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0))), Black: 308#(or (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 294#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), 309#(= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0), Black: 307#(or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= (+ ~sort_label_is_null_5~0 (* (- 256) (div ~sort_label_is_null_5~0 256))) 0)) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), Black: 305#true, 355#(= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)]) [2022-07-12 10:23:54,203 INFO L384 tUnfolder$Statistics]: this new event has 106 ancestors and is cut-off event [2022-07-12 10:23:54,203 INFO L387 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2022-07-12 10:23:54,203 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2022-07-12 10:23:54,204 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2022-07-12 10:23:54,299 INFO L129 PetriNetUnfolder]: 1596/13149 cut-off events. [2022-07-12 10:23:54,299 INFO L130 PetriNetUnfolder]: For 29800/30371 co-relation queries the response was YES. [2022-07-12 10:23:54,370 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27762 conditions, 13149 events. 1596/13149 cut-off events. For 29800/30371 co-relation queries the response was YES. Maximal size of possible extension queue 575. Compared 177372 event pairs, 397 based on Foata normal form. 122/12586 useless extension candidates. Maximal degree in co-relation 26579. Up to 1096 conditions per place. [2022-07-12 10:23:54,401 INFO L132 encePairwiseOnDemand]: 216/232 looper letters, 212 selfloop transitions, 87 changer transitions 5/492 dead transitions. [2022-07-12 10:23:54,401 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 492 transitions, 5690 flow [2022-07-12 10:23:54,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 10:23:54,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-07-12 10:23:54,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1051 transitions. [2022-07-12 10:23:54,404 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.9060344827586206 [2022-07-12 10:23:54,404 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1051 transitions. [2022-07-12 10:23:54,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1051 transitions. [2022-07-12 10:23:54,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:23:54,405 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1051 transitions. [2022-07-12 10:23:54,407 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 210.2) internal successors, (1051), 5 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:54,409 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:54,409 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:54,409 INFO L186 Difference]: Start difference. First operand has 279 places, 409 transitions, 4035 flow. Second operand 5 states and 1051 transitions. [2022-07-12 10:23:54,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 492 transitions, 5690 flow [2022-07-12 10:23:54,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 492 transitions, 5686 flow, removed 2 selfloop flow, removed 0 redundant places. [2022-07-12 10:23:54,514 INFO L242 Difference]: Finished difference. Result has 287 places, 438 transitions, 4927 flow [2022-07-12 10:23:54,515 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=4007, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=327, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=4927, PETRI_PLACES=287, PETRI_TRANSITIONS=438} [2022-07-12 10:23:54,515 INFO L279 CegarLoopForPetriNet]: 211 programPoint places, 76 predicate places. [2022-07-12 10:23:54,515 INFO L495 AbstractCegarLoop]: Abstraction has has 287 places, 438 transitions, 4927 flow [2022-07-12 10:23:54,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:54,516 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:23:54,516 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:23:54,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 10:23:54,516 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-12 10:23:54,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:23:54,517 INFO L85 PathProgramCache]: Analyzing trace with hash -2119521659, now seen corresponding path program 5 times [2022-07-12 10:23:54,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:23:54,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029909419] [2022-07-12 10:23:54,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:23:54,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:23:54,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:23:54,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:23:54,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:23:54,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029909419] [2022-07-12 10:23:54,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029909419] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:23:54,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:23:54,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 10:23:54,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150611889] [2022-07-12 10:23:54,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:23:54,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 10:23:54,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:23:54,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 10:23:54,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 10:23:54,582 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2022-07-12 10:23:54,583 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 438 transitions, 4927 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:54,583 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:23:54,583 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2022-07-12 10:23:54,583 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:23:56,154 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][217], [Black: 319#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))), Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 317#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 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0)), 270#(and (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), 375#(= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0), Black: 282#true, Black: 286#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))), Black: 284#(or (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 353#(or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), Black: 354#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= 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~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 308#(or (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 294#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), 309#(= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0), Black: 307#(or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= (+ ~sort_label_is_null_5~0 (* (- 256) (div ~sort_label_is_null_5~0 256))) 0)) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), Black: 305#true, 355#(= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)]) [2022-07-12 10:23:56,155 INFO L384 tUnfolder$Statistics]: this new event has 106 ancestors and is cut-off event [2022-07-12 10:23:56,155 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2022-07-12 10:23:56,155 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2022-07-12 10:23:56,155 INFO L387 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2022-07-12 10:23:56,283 INFO L129 PetriNetUnfolder]: 1565/13018 cut-off events. [2022-07-12 10:23:56,283 INFO L130 PetriNetUnfolder]: For 35831/36390 co-relation queries the response was YES. [2022-07-12 10:23:56,405 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28355 conditions, 13018 events. 1565/13018 cut-off events. For 35831/36390 co-relation queries the response was YES. Maximal size of possible extension queue 574. Compared 175327 event pairs, 363 based on Foata normal form. 142/12477 useless extension candidates. Maximal degree in co-relation 27257. Up to 1370 conditions per place. [2022-07-12 10:23:56,442 INFO L132 encePairwiseOnDemand]: 215/232 looper letters, 230 selfloop transitions, 107 changer transitions 8/533 dead transitions. [2022-07-12 10:23:56,442 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 533 transitions, 6950 flow [2022-07-12 10:23:56,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 10:23:56,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-07-12 10:23:56,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1251 transitions. [2022-07-12 10:23:56,445 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8987068965517241 [2022-07-12 10:23:56,445 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1251 transitions. [2022-07-12 10:23:56,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1251 transitions. [2022-07-12 10:23:56,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:23:56,446 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1251 transitions. [2022-07-12 10:23:56,448 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 208.5) internal successors, (1251), 6 states have internal predecessors, (1251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:56,450 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 232.0) internal successors, (1624), 7 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:56,451 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 232.0) internal successors, (1624), 7 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:56,451 INFO L186 Difference]: Start difference. First operand has 287 places, 438 transitions, 4927 flow. Second operand 6 states and 1251 transitions. [2022-07-12 10:23:56,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 533 transitions, 6950 flow [2022-07-12 10:23:56,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 533 transitions, 6944 flow, removed 3 selfloop flow, removed 0 redundant places. [2022-07-12 10:23:56,600 INFO L242 Difference]: Finished difference. Result has 297 places, 473 transitions, 6074 flow [2022-07-12 10:23:56,601 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=4857, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=434, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=6074, PETRI_PLACES=297, PETRI_TRANSITIONS=473} [2022-07-12 10:23:56,601 INFO L279 CegarLoopForPetriNet]: 211 programPoint places, 86 predicate places. [2022-07-12 10:23:56,602 INFO L495 AbstractCegarLoop]: Abstraction has has 297 places, 473 transitions, 6074 flow [2022-07-12 10:23:56,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:56,602 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:23:56,602 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:23:56,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-12 10:23:56,603 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-12 10:23:56,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:23:56,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1576377401, now seen corresponding path program 7 times [2022-07-12 10:23:56,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:23:56,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849362663] [2022-07-12 10:23:56,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:23:56,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:23:56,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:23:56,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:23:56,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:23:56,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849362663] [2022-07-12 10:23:56,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849362663] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:23:56,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:23:56,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 10:23:56,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191525227] [2022-07-12 10:23:56,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:23:56,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 10:23:56,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:23:56,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 10:23:56,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-07-12 10:23:56,694 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2022-07-12 10:23:56,695 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 473 transitions, 6074 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:56,695 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:23:56,695 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2022-07-12 10:23:56,695 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:23:58,176 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][226], [Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 231#(= ~result_7~0 0), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 66#L56-18true, 365#(= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0), Black: 268#(= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0), Black: 266#(or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 267#(or (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 273#(and (or (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 264#true, 318#(or (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256))))), 228#true, 285#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 282#true, Black: 286#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))), Black: 284#(or (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 298#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256))) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), Black: 292#true, Black: 295#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (not (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0))), Black: 308#(or (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 389#(= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0), 294#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 307#(or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= (+ ~sort_label_is_null_5~0 (* (- 256) (div ~sort_label_is_null_5~0 256))) 0)) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), Black: 305#true, 355#(= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0), Black: 319#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))), Black: 317#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 327#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), 345#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)), 87#L75-2true, 106#L50-18true, Black: 334#(or (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 332#true, Black: 335#(or (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 346#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), Black: 344#(or (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), 270#(and (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), 375#(= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0), Black: 353#(or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), Black: 354#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)), Black: 351#true, Black: 361#true, Black: 363#(or (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)) (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 364#(or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 309#(= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0), Black: 373#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)), Black: 377#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (or (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))), Black: 371#true, Black: 374#(or (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))]) [2022-07-12 10:23:58,176 INFO L384 tUnfolder$Statistics]: this new event has 106 ancestors and is cut-off event [2022-07-12 10:23:58,176 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2022-07-12 10:23:58,176 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2022-07-12 10:23:58,176 INFO L387 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2022-07-12 10:23:58,304 INFO L129 PetriNetUnfolder]: 1582/13472 cut-off events. [2022-07-12 10:23:58,304 INFO L130 PetriNetUnfolder]: For 40424/40978 co-relation queries the response was YES. [2022-07-12 10:23:58,423 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30076 conditions, 13472 events. 1582/13472 cut-off events. For 40424/40978 co-relation queries the response was YES. Maximal size of possible extension queue 591. Compared 181807 event pairs, 444 based on Foata normal form. 110/12846 useless extension candidates. Maximal degree in co-relation 28974. Up to 1286 conditions per place. [2022-07-12 10:23:58,460 INFO L132 encePairwiseOnDemand]: 217/232 looper letters, 244 selfloop transitions, 88 changer transitions 4/524 dead transitions. [2022-07-12 10:23:58,460 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 524 transitions, 7331 flow [2022-07-12 10:23:58,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 10:23:58,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-07-12 10:23:58,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1043 transitions. [2022-07-12 10:23:58,462 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8991379310344828 [2022-07-12 10:23:58,462 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1043 transitions. [2022-07-12 10:23:58,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1043 transitions. [2022-07-12 10:23:58,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:23:58,462 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1043 transitions. [2022-07-12 10:23:58,464 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 208.6) internal successors, (1043), 5 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:58,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:58,465 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:58,465 INFO L186 Difference]: Start difference. First operand has 297 places, 473 transitions, 6074 flow. Second operand 5 states and 1043 transitions. [2022-07-12 10:23:58,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 524 transitions, 7331 flow [2022-07-12 10:23:58,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 524 transitions, 7329 flow, removed 1 selfloop flow, removed 0 redundant places. [2022-07-12 10:23:58,605 INFO L242 Difference]: Finished difference. Result has 303 places, 481 transitions, 6530 flow [2022-07-12 10:23:58,606 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=6072, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=473, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=385, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=6530, PETRI_PLACES=303, PETRI_TRANSITIONS=481} [2022-07-12 10:23:58,606 INFO L279 CegarLoopForPetriNet]: 211 programPoint places, 92 predicate places. [2022-07-12 10:23:58,606 INFO L495 AbstractCegarLoop]: Abstraction has has 303 places, 481 transitions, 6530 flow [2022-07-12 10:23:58,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:58,607 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:23:58,607 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:23:58,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-12 10:23:58,607 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-12 10:23:58,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:23:58,608 INFO L85 PathProgramCache]: Analyzing trace with hash -91452713, now seen corresponding path program 6 times [2022-07-12 10:23:58,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:23:58,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914737506] [2022-07-12 10:23:58,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:23:58,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:23:58,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:23:58,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:23:58,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:23:58,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914737506] [2022-07-12 10:23:58,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914737506] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:23:58,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:23:58,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 10:23:58,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892312706] [2022-07-12 10:23:58,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:23:58,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 10:23:58,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:23:58,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 10:23:58,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-07-12 10:23:58,694 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2022-07-12 10:23:58,695 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 481 transitions, 6530 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:23:58,695 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:23:58,695 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2022-07-12 10:23:58,695 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:24:00,474 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][216], [Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 231#(= ~result_7~0 0), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), Black: 388#(or (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256))))), 66#L56-18true, 365#(= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0), Black: 268#(= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0), Black: 266#(or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 267#(or (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 273#(and (or (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 264#true, 318#(or (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256))))), 228#true, 285#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 282#true, Black: 286#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))), Black: 284#(or (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 298#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256))) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), Black: 292#true, Black: 295#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (not (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0))), 389#(= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0), Black: 308#(or (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 294#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 307#(or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= (+ ~sort_label_is_null_5~0 (* (- 256) (div ~sort_label_is_null_5~0 256))) 0)) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), Black: 305#true, 355#(= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0), Black: 319#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))), Black: 317#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), 397#(= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0), Black: 327#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), 345#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)), 87#L75-2true, 106#L50-18true, Black: 334#(or (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 332#true, Black: 335#(or (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 346#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), Black: 344#(or (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), 270#(and (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), 375#(= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0), Black: 353#(or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), Black: 354#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)), Black: 351#true, Black: 361#true, Black: 363#(or (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)) (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 364#(or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 309#(= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0), Black: 373#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)), Black: 377#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (or (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))), Black: 371#true, Black: 374#(or (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))]) [2022-07-12 10:24:00,474 INFO L384 tUnfolder$Statistics]: this new event has 106 ancestors and is cut-off event [2022-07-12 10:24:00,474 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2022-07-12 10:24:00,474 INFO L387 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2022-07-12 10:24:00,474 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2022-07-12 10:24:00,599 INFO L129 PetriNetUnfolder]: 1617/13927 cut-off events. [2022-07-12 10:24:00,599 INFO L130 PetriNetUnfolder]: For 45557/46160 co-relation queries the response was YES. [2022-07-12 10:24:00,692 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31214 conditions, 13927 events. 1617/13927 cut-off events. For 45557/46160 co-relation queries the response was YES. Maximal size of possible extension queue 606. Compared 189491 event pairs, 468 based on Foata normal form. 116/13298 useless extension candidates. Maximal degree in co-relation 30102. Up to 1365 conditions per place. [2022-07-12 10:24:00,728 INFO L132 encePairwiseOnDemand]: 217/232 looper letters, 233 selfloop transitions, 109 changer transitions 3/533 dead transitions. [2022-07-12 10:24:00,728 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 533 transitions, 7905 flow [2022-07-12 10:24:00,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 10:24:00,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-07-12 10:24:00,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1043 transitions. [2022-07-12 10:24:00,730 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8991379310344828 [2022-07-12 10:24:00,730 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1043 transitions. [2022-07-12 10:24:00,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1043 transitions. [2022-07-12 10:24:00,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:24:00,731 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1043 transitions. [2022-07-12 10:24:00,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 208.6) internal successors, (1043), 5 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:00,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:00,735 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:00,735 INFO L186 Difference]: Start difference. First operand has 303 places, 481 transitions, 6530 flow. Second operand 5 states and 1043 transitions. [2022-07-12 10:24:00,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 533 transitions, 7905 flow [2022-07-12 10:24:00,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 533 transitions, 7764 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-07-12 10:24:00,923 INFO L242 Difference]: Finished difference. Result has 307 places, 492 transitions, 7050 flow [2022-07-12 10:24:00,924 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=6406, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=481, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=98, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=373, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=7050, PETRI_PLACES=307, PETRI_TRANSITIONS=492} [2022-07-12 10:24:00,924 INFO L279 CegarLoopForPetriNet]: 211 programPoint places, 96 predicate places. [2022-07-12 10:24:00,924 INFO L495 AbstractCegarLoop]: Abstraction has has 307 places, 492 transitions, 7050 flow [2022-07-12 10:24:00,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:00,925 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:24:00,925 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:24:00,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-12 10:24:00,925 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-12 10:24:00,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:24:00,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1441967109, now seen corresponding path program 7 times [2022-07-12 10:24:00,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:24:00,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31219524] [2022-07-12 10:24:00,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:24:00,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:24:00,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:24:01,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:24:01,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:24:01,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31219524] [2022-07-12 10:24:01,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31219524] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:24:01,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:24:01,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 10:24:01,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438830166] [2022-07-12 10:24:01,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:24:01,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 10:24:01,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:24:01,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 10:24:01,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-12 10:24:01,033 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2022-07-12 10:24:01,034 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 492 transitions, 7050 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:01,034 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:24:01,034 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2022-07-12 10:24:01,034 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:24:03,124 INFO L129 PetriNetUnfolder]: 1544/12777 cut-off events. [2022-07-12 10:24:03,125 INFO L130 PetriNetUnfolder]: For 53254/53870 co-relation queries the response was YES. [2022-07-12 10:24:03,189 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29893 conditions, 12777 events. 1544/12777 cut-off events. For 53254/53870 co-relation queries the response was YES. Maximal size of possible extension queue 615. Compared 173350 event pairs, 413 based on Foata normal form. 155/12300 useless extension candidates. Maximal degree in co-relation 28770. Up to 966 conditions per place. [2022-07-12 10:24:03,217 INFO L132 encePairwiseOnDemand]: 214/232 looper letters, 305 selfloop transitions, 107 changer transitions 8/608 dead transitions. [2022-07-12 10:24:03,218 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 608 transitions, 9255 flow [2022-07-12 10:24:03,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 10:24:03,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-07-12 10:24:03,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1468 transitions. [2022-07-12 10:24:03,220 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.9039408866995073 [2022-07-12 10:24:03,220 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1468 transitions. [2022-07-12 10:24:03,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1468 transitions. [2022-07-12 10:24:03,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:24:03,221 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1468 transitions. [2022-07-12 10:24:03,223 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 209.71428571428572) internal successors, (1468), 7 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:03,225 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 232.0) internal successors, (1856), 8 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:03,226 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 232.0) internal successors, (1856), 8 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:03,226 INFO L186 Difference]: Start difference. First operand has 307 places, 492 transitions, 7050 flow. Second operand 7 states and 1468 transitions. [2022-07-12 10:24:03,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 608 transitions, 9255 flow [2022-07-12 10:24:03,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 608 transitions, 9123 flow, removed 13 selfloop flow, removed 2 redundant places. [2022-07-12 10:24:03,378 INFO L242 Difference]: Finished difference. Result has 316 places, 508 transitions, 7484 flow [2022-07-12 10:24:03,378 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=6670, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=484, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=385, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=7484, PETRI_PLACES=316, PETRI_TRANSITIONS=508} [2022-07-12 10:24:03,379 INFO L279 CegarLoopForPetriNet]: 211 programPoint places, 105 predicate places. [2022-07-12 10:24:03,379 INFO L495 AbstractCegarLoop]: Abstraction has has 316 places, 508 transitions, 7484 flow [2022-07-12 10:24:03,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:03,379 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:24:03,379 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:24:03,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-12 10:24:03,379 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-12 10:24:03,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:24:03,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1555853255, now seen corresponding path program 8 times [2022-07-12 10:24:03,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:24:03,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214811603] [2022-07-12 10:24:03,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:24:03,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:24:03,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:24:03,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:24:03,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:24:03,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214811603] [2022-07-12 10:24:03,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214811603] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:24:03,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:24:03,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 10:24:03,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997728446] [2022-07-12 10:24:03,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:24:03,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 10:24:03,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:24:03,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 10:24:03,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-07-12 10:24:03,461 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2022-07-12 10:24:03,462 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 508 transitions, 7484 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:03,462 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:24:03,462 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2022-07-12 10:24:03,462 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:24:04,920 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][229], [408#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))) (or (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)) (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 231#(= ~result_7~0 0), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), Black: 388#(or (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256))))), 66#L56-18true, Black: 395#(or (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)) (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 396#(or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), 365#(= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0), Black: 268#(= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0), Black: 266#(or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 267#(or (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), 420#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 273#(and (or (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 264#true, 318#(or (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256))))), 228#true, Black: 406#(and (not (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256))) (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256))), 285#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 411#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256))) (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256))), Black: 282#true, Black: 405#(or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 286#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))), Black: 402#true, Black: 284#(or (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), 43#L44-8true, Black: 298#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256))) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), Black: 292#true, Black: 295#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (not (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0))), 57#L74-4true, Black: 308#(or (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 294#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 307#(or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= (+ ~sort_label_is_null_5~0 (* (- 256) (div ~sort_label_is_null_5~0 256))) 0)) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), Black: 305#true, 355#(= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0), Black: 319#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))), Black: 317#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) 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~sort_label_is_null_3~0) 0)) (or (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))), Black: 371#true, Black: 374#(or (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))]) [2022-07-12 10:24:05,290 INFO L384 tUnfolder$Statistics]: this new event has 128 ancestors and is cut-off event [2022-07-12 10:24:05,291 INFO L387 tUnfolder$Statistics]: existing Event has 126 ancestors and is cut-off event [2022-07-12 10:24:05,291 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2022-07-12 10:24:05,291 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2022-07-12 10:24:05,320 INFO L129 PetriNetUnfolder]: 1629/14596 cut-off events. [2022-07-12 10:24:05,320 INFO L130 PetriNetUnfolder]: For 54490/55103 co-relation queries the response was YES. [2022-07-12 10:24:05,463 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33288 conditions, 14596 events. 1629/14596 cut-off events. For 54490/55103 co-relation queries the response was YES. Maximal size of possible extension queue 617. Compared 199946 event pairs, 391 based on Foata normal form. 127/13975 useless extension candidates. Maximal degree in co-relation 32132. Up to 1566 conditions per place. [2022-07-12 10:24:05,505 INFO L132 encePairwiseOnDemand]: 220/232 looper letters, 303 selfloop transitions, 60 changer transitions 2/553 dead transitions. [2022-07-12 10:24:05,505 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 553 transitions, 8757 flow [2022-07-12 10:24:05,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 10:24:05,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-07-12 10:24:05,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1037 transitions. [2022-07-12 10:24:05,507 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8939655172413793 [2022-07-12 10:24:05,507 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1037 transitions. [2022-07-12 10:24:05,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1037 transitions. [2022-07-12 10:24:05,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:24:05,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1037 transitions. [2022-07-12 10:24:05,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 207.4) internal successors, (1037), 5 states have internal predecessors, (1037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:05,511 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:05,512 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:05,512 INFO L186 Difference]: Start difference. First operand has 316 places, 508 transitions, 7484 flow. Second operand 5 states and 1037 transitions. [2022-07-12 10:24:05,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 553 transitions, 8757 flow [2022-07-12 10:24:05,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 553 transitions, 8745 flow, removed 6 selfloop flow, removed 0 redundant places. [2022-07-12 10:24:05,773 INFO L242 Difference]: Finished difference. Result has 322 places, 514 transitions, 7779 flow [2022-07-12 10:24:05,774 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=7472, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=508, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=448, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=7779, PETRI_PLACES=322, PETRI_TRANSITIONS=514} [2022-07-12 10:24:05,774 INFO L279 CegarLoopForPetriNet]: 211 programPoint places, 111 predicate places. [2022-07-12 10:24:05,775 INFO L495 AbstractCegarLoop]: Abstraction has has 322 places, 514 transitions, 7779 flow [2022-07-12 10:24:05,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:05,775 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:24:05,775 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:24:05,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-12 10:24:05,776 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-12 10:24:05,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:24:05,776 INFO L85 PathProgramCache]: Analyzing trace with hash 3217273, now seen corresponding path program 9 times [2022-07-12 10:24:05,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:24:05,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057786389] [2022-07-12 10:24:05,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:24:05,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:24:05,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:24:05,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:24:05,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:24:05,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057786389] [2022-07-12 10:24:05,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057786389] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:24:05,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:24:05,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 10:24:05,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072572459] [2022-07-12 10:24:05,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:24:05,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 10:24:05,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:24:05,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 10:24:05,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-07-12 10:24:05,842 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2022-07-12 10:24:05,843 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 514 transitions, 7779 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:05,843 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:24:05,843 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2022-07-12 10:24:05,843 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:24:07,494 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][234], [408#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))) (or (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)) (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 231#(= ~result_7~0 0), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), Black: 388#(or (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256))))), 66#L56-18true, Black: 395#(or (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)) (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 396#(or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), 365#(= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0), Black: 268#(= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0), Black: 266#(or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 267#(or (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), 420#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 273#(and (or (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 264#true, 318#(or (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256))))), 228#true, 285#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 406#(and (not (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256))) (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256))), Black: 411#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256))) (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256))), Black: 282#true, Black: 405#(or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 286#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))), Black: 402#true, Black: 284#(or (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 421#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (not (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0))), Black: 422#(and (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0))), 43#L44-8true, Black: 298#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256))) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), Black: 292#true, Black: 295#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (not (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0))), 57#L74-4true, Black: 308#(or (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 294#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 307#(or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= (+ ~sort_label_is_null_5~0 (* (- 256) (div ~sort_label_is_null_5~0 256))) 0)) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), Black: 305#true, 355#(= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0), Black: 319#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))), Black: 317#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 327#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), 345#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)), 106#L50-18true, Black: 334#(or (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 332#true, Black: 335#(or (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), 430#(= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0), Black: 346#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), Black: 344#(or (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), 270#(and (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), 375#(= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0), Black: 353#(or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), Black: 354#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)), Black: 351#true, Black: 361#true, Black: 363#(or (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)) (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 364#(or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 309#(= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0), Black: 373#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)), Black: 377#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (or (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))), Black: 371#true, Black: 374#(or (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))]) [2022-07-12 10:24:07,495 INFO L384 tUnfolder$Statistics]: this new event has 90 ancestors and is not cut-off event [2022-07-12 10:24:07,495 INFO L387 tUnfolder$Statistics]: existing Event has 94 ancestors and is not cut-off event [2022-07-12 10:24:07,495 INFO L387 tUnfolder$Statistics]: existing Event has 94 ancestors and is not cut-off event [2022-07-12 10:24:07,495 INFO L387 tUnfolder$Statistics]: existing Event has 92 ancestors and is not cut-off event [2022-07-12 10:24:07,932 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][234], [408#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))) (or (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)) (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 231#(= ~result_7~0 0), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), Black: 388#(or (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256))))), 66#L56-18true, Black: 395#(or (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)) (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)) (not (= ~sort_label_is_null_5~0 (* 256 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~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)), Black: 351#true, Black: 361#true, Black: 363#(or (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)) (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 364#(or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 309#(= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0), Black: 373#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)), Black: 377#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (or (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))), Black: 371#true, Black: 374#(or (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))]) [2022-07-12 10:24:07,932 INFO L384 tUnfolder$Statistics]: this new event has 128 ancestors and is cut-off event [2022-07-12 10:24:07,932 INFO L387 tUnfolder$Statistics]: existing Event has 126 ancestors and is cut-off event [2022-07-12 10:24:07,932 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2022-07-12 10:24:07,932 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2022-07-12 10:24:07,968 INFO L129 PetriNetUnfolder]: 1635/14623 cut-off events. [2022-07-12 10:24:07,968 INFO L130 PetriNetUnfolder]: For 59630/60266 co-relation queries the response was YES. [2022-07-12 10:24:08,145 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33640 conditions, 14623 events. 1635/14623 cut-off events. For 59630/60266 co-relation queries the response was YES. Maximal size of possible extension queue 629. Compared 200702 event pairs, 468 based on Foata normal form. 135/14013 useless extension candidates. Maximal degree in co-relation 32479. Up to 1292 conditions per place. [2022-07-12 10:24:08,195 INFO L132 encePairwiseOnDemand]: 219/232 looper letters, 263 selfloop transitions, 99 changer transitions 0/550 dead transitions. [2022-07-12 10:24:08,195 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 550 transitions, 8927 flow [2022-07-12 10:24:08,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 10:24:08,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-07-12 10:24:08,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1037 transitions. [2022-07-12 10:24:08,197 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8939655172413793 [2022-07-12 10:24:08,197 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1037 transitions. [2022-07-12 10:24:08,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1037 transitions. [2022-07-12 10:24:08,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:24:08,198 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1037 transitions. [2022-07-12 10:24:08,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 207.4) internal successors, (1037), 5 states have internal predecessors, (1037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:08,201 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:08,201 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:08,201 INFO L186 Difference]: Start difference. First operand has 322 places, 514 transitions, 7779 flow. Second operand 5 states and 1037 transitions. [2022-07-12 10:24:08,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 550 transitions, 8927 flow [2022-07-12 10:24:08,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 550 transitions, 8863 flow, removed 7 selfloop flow, removed 2 redundant places. [2022-07-12 10:24:08,509 INFO L242 Difference]: Finished difference. Result has 327 places, 520 transitions, 8224 flow [2022-07-12 10:24:08,510 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=7690, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=513, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=8224, PETRI_PLACES=327, PETRI_TRANSITIONS=520} [2022-07-12 10:24:08,510 INFO L279 CegarLoopForPetriNet]: 211 programPoint places, 116 predicate places. [2022-07-12 10:24:08,510 INFO L495 AbstractCegarLoop]: Abstraction has has 327 places, 520 transitions, 8224 flow [2022-07-12 10:24:08,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:08,511 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:24:08,511 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:24:08,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-12 10:24:08,511 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-12 10:24:08,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:24:08,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1858215399, now seen corresponding path program 10 times [2022-07-12 10:24:08,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:24:08,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843859206] [2022-07-12 10:24:08,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:24:08,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:24:08,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:24:08,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:24:08,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:24:08,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843859206] [2022-07-12 10:24:08,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843859206] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:24:08,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:24:08,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 10:24:08,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305297092] [2022-07-12 10:24:08,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:24:08,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 10:24:08,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:24:08,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 10:24:08,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-07-12 10:24:08,604 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2022-07-12 10:24:08,605 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 520 transitions, 8224 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:08,605 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:24:08,605 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2022-07-12 10:24:08,605 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:24:10,134 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][222], [408#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))) (or (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)) (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 231#(= ~result_7~0 0), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 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~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)) (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 364#(or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 309#(= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0), Black: 373#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)), Black: 377#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (or (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))), Black: 371#true, Black: 374#(or (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))]) [2022-07-12 10:24:10,495 INFO L384 tUnfolder$Statistics]: this new event has 128 ancestors and is cut-off event [2022-07-12 10:24:10,495 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2022-07-12 10:24:10,495 INFO L387 tUnfolder$Statistics]: existing Event has 126 ancestors and is cut-off event [2022-07-12 10:24:10,495 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2022-07-12 10:24:10,528 INFO L129 PetriNetUnfolder]: 1632/14347 cut-off events. [2022-07-12 10:24:10,528 INFO L130 PetriNetUnfolder]: For 61419/62054 co-relation queries the response was YES. [2022-07-12 10:24:10,859 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33642 conditions, 14347 events. 1632/14347 cut-off events. For 61419/62054 co-relation queries the response was YES. Maximal size of possible extension queue 615. Compared 195560 event pairs, 428 based on Foata normal form. 131/13724 useless extension candidates. Maximal degree in co-relation 32462. Up to 1524 conditions per place. [2022-07-12 10:24:10,890 INFO L132 encePairwiseOnDemand]: 220/232 looper letters, 278 selfloop transitions, 80 changer transitions 1/547 dead transitions. [2022-07-12 10:24:10,890 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 547 transitions, 9192 flow [2022-07-12 10:24:10,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 10:24:10,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-07-12 10:24:10,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1035 transitions. [2022-07-12 10:24:10,892 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8922413793103449 [2022-07-12 10:24:10,892 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1035 transitions. [2022-07-12 10:24:10,892 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1035 transitions. [2022-07-12 10:24:10,893 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:24:10,893 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1035 transitions. [2022-07-12 10:24:10,895 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 207.0) internal successors, (1035), 5 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) [2022-07-12 10:24:10,896 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:10,896 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:10,897 INFO L186 Difference]: Start difference. First operand has 327 places, 520 transitions, 8224 flow. Second operand 5 states and 1035 transitions. [2022-07-12 10:24:10,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 547 transitions, 9192 flow [2022-07-12 10:24:11,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 547 transitions, 9118 flow, removed 11 selfloop flow, removed 1 redundant places. [2022-07-12 10:24:11,125 INFO L242 Difference]: Finished difference. Result has 331 places, 519 transitions, 8361 flow [2022-07-12 10:24:11,125 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=8076, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=517, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=437, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=8361, PETRI_PLACES=331, PETRI_TRANSITIONS=519} [2022-07-12 10:24:11,126 INFO L279 CegarLoopForPetriNet]: 211 programPoint places, 120 predicate places. [2022-07-12 10:24:11,126 INFO L495 AbstractCegarLoop]: Abstraction has has 331 places, 519 transitions, 8361 flow [2022-07-12 10:24:11,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:11,126 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:24:11,127 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:24:11,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-12 10:24:11,127 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-12 10:24:11,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:24:11,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1894845049, now seen corresponding path program 8 times [2022-07-12 10:24:11,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:24:11,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558812481] [2022-07-12 10:24:11,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:24:11,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:24:11,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:24:11,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:24:11,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:24:11,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558812481] [2022-07-12 10:24:11,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558812481] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:24:11,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:24:11,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 10:24:11,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301251963] [2022-07-12 10:24:11,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:24:11,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 10:24:11,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:24:11,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 10:24:11,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-07-12 10:24:11,207 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2022-07-12 10:24:11,207 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 519 transitions, 8361 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:11,208 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:24:11,208 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2022-07-12 10:24:11,208 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:24:12,689 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][242], [408#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))) (or (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)) (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 231#(= ~result_7~0 0), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 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~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (or (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))), Black: 371#true, Black: 374#(or (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))]) [2022-07-12 10:24:13,082 INFO L384 tUnfolder$Statistics]: this new event has 128 ancestors and is cut-off event [2022-07-12 10:24:13,082 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2022-07-12 10:24:13,083 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2022-07-12 10:24:13,083 INFO L387 tUnfolder$Statistics]: existing Event has 126 ancestors and is cut-off event [2022-07-12 10:24:13,108 INFO L129 PetriNetUnfolder]: 1646/14788 cut-off events. [2022-07-12 10:24:13,108 INFO L130 PetriNetUnfolder]: For 66994/67631 co-relation queries the response was YES. [2022-07-12 10:24:13,268 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34407 conditions, 14788 events. 1646/14788 cut-off events. For 66994/67631 co-relation queries the response was YES. Maximal size of possible extension queue 636. Compared 203456 event pairs, 360 based on Foata normal form. 136/14191 useless extension candidates. Maximal degree in co-relation 33077. Up to 1287 conditions per place. [2022-07-12 10:24:13,312 INFO L132 encePairwiseOnDemand]: 217/232 looper letters, 310 selfloop transitions, 92 changer transitions 4/594 dead transitions. [2022-07-12 10:24:13,313 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 594 transitions, 10422 flow [2022-07-12 10:24:13,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 10:24:13,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-07-12 10:24:13,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1041 transitions. [2022-07-12 10:24:13,315 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8974137931034483 [2022-07-12 10:24:13,315 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1041 transitions. [2022-07-12 10:24:13,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1041 transitions. [2022-07-12 10:24:13,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:24:13,315 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1041 transitions. [2022-07-12 10:24:13,317 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 208.2) internal successors, (1041), 5 states have internal predecessors, (1041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:13,318 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:13,319 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:13,319 INFO L186 Difference]: Start difference. First operand has 331 places, 519 transitions, 8361 flow. Second operand 5 states and 1041 transitions. [2022-07-12 10:24:13,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 594 transitions, 10422 flow [2022-07-12 10:24:13,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 594 transitions, 10317 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-07-12 10:24:13,637 INFO L242 Difference]: Finished difference. Result has 336 places, 541 transitions, 9175 flow [2022-07-12 10:24:13,637 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=8260, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=519, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=428, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=9175, PETRI_PLACES=336, PETRI_TRANSITIONS=541} [2022-07-12 10:24:13,637 INFO L279 CegarLoopForPetriNet]: 211 programPoint places, 125 predicate places. [2022-07-12 10:24:13,638 INFO L495 AbstractCegarLoop]: Abstraction has has 336 places, 541 transitions, 9175 flow [2022-07-12 10:24:13,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:13,638 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:24:13,638 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:24:13,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-12 10:24:13,638 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-12 10:24:13,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:24:13,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1780670687, now seen corresponding path program 9 times [2022-07-12 10:24:13,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:24:13,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89582597] [2022-07-12 10:24:13,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:24:13,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:24:13,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:24:13,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:24:13,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:24:13,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89582597] [2022-07-12 10:24:13,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89582597] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:24:13,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:24:13,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 10:24:13,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170066860] [2022-07-12 10:24:13,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:24:13,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 10:24:13,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:24:13,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 10:24:13,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 10:24:13,724 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2022-07-12 10:24:13,725 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 541 transitions, 9175 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:13,725 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:24:13,725 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2022-07-12 10:24:13,725 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:24:15,694 INFO L129 PetriNetUnfolder]: 1562/13730 cut-off events. [2022-07-12 10:24:15,694 INFO L130 PetriNetUnfolder]: For 69193/69820 co-relation queries the response was YES. [2022-07-12 10:24:15,791 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33121 conditions, 13730 events. 1562/13730 cut-off events. For 69193/69820 co-relation queries the response was YES. Maximal size of possible extension queue 600. Compared 186257 event pairs, 346 based on Foata normal form. 140/13166 useless extension candidates. Maximal degree in co-relation 32014. Up to 1404 conditions per place. [2022-07-12 10:24:15,825 INFO L132 encePairwiseOnDemand]: 219/232 looper letters, 345 selfloop transitions, 63 changer transitions 2/598 dead transitions. [2022-07-12 10:24:15,825 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 598 transitions, 10705 flow [2022-07-12 10:24:15,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 10:24:15,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-07-12 10:24:15,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1042 transitions. [2022-07-12 10:24:15,827 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8982758620689655 [2022-07-12 10:24:15,827 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1042 transitions. [2022-07-12 10:24:15,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1042 transitions. [2022-07-12 10:24:15,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:24:15,827 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1042 transitions. [2022-07-12 10:24:15,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 208.4) internal successors, (1042), 5 states have internal predecessors, (1042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:15,830 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:15,830 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:15,830 INFO L186 Difference]: Start difference. First operand has 336 places, 541 transitions, 9175 flow. Second operand 5 states and 1042 transitions. [2022-07-12 10:24:15,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 598 transitions, 10705 flow [2022-07-12 10:24:16,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 598 transitions, 10669 flow, removed 18 selfloop flow, removed 0 redundant places. [2022-07-12 10:24:16,116 INFO L242 Difference]: Finished difference. Result has 343 places, 546 transitions, 9424 flow [2022-07-12 10:24:16,117 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=8995, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=538, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=475, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=9424, PETRI_PLACES=343, PETRI_TRANSITIONS=546} [2022-07-12 10:24:16,117 INFO L279 CegarLoopForPetriNet]: 211 programPoint places, 132 predicate places. [2022-07-12 10:24:16,117 INFO L495 AbstractCegarLoop]: Abstraction has has 343 places, 546 transitions, 9424 flow [2022-07-12 10:24:16,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:16,118 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:24:16,118 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:24:16,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-12 10:24:16,118 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-12 10:24:16,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:24:16,119 INFO L85 PathProgramCache]: Analyzing trace with hash -93192357, now seen corresponding path program 10 times [2022-07-12 10:24:16,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:24:16,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078379165] [2022-07-12 10:24:16,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:24:16,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:24:16,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:24:16,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:24:16,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:24:16,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078379165] [2022-07-12 10:24:16,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078379165] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:24:16,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:24:16,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 10:24:16,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372737098] [2022-07-12 10:24:16,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:24:16,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 10:24:16,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:24:16,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 10:24:16,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-12 10:24:16,185 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2022-07-12 10:24:16,186 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 343 places, 546 transitions, 9424 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:16,186 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:24:16,186 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2022-07-12 10:24:16,187 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:24:18,210 INFO L129 PetriNetUnfolder]: 1591/13993 cut-off events. [2022-07-12 10:24:18,210 INFO L130 PetriNetUnfolder]: For 71190/71822 co-relation queries the response was YES. [2022-07-12 10:24:18,363 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34024 conditions, 13993 events. 1591/13993 cut-off events. For 71190/71822 co-relation queries the response was YES. Maximal size of possible extension queue 610. Compared 190485 event pairs, 351 based on Foata normal form. 119/13392 useless extension candidates. Maximal degree in co-relation 32853. Up to 1404 conditions per place. [2022-07-12 10:24:18,404 INFO L132 encePairwiseOnDemand]: 220/232 looper letters, 343 selfloop transitions, 70 changer transitions 2/603 dead transitions. [2022-07-12 10:24:18,404 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 603 transitions, 10947 flow [2022-07-12 10:24:18,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 10:24:18,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-07-12 10:24:18,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1041 transitions. [2022-07-12 10:24:18,406 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8974137931034483 [2022-07-12 10:24:18,406 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1041 transitions. [2022-07-12 10:24:18,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1041 transitions. [2022-07-12 10:24:18,406 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:24:18,406 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1041 transitions. [2022-07-12 10:24:18,407 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 208.2) internal successors, (1041), 5 states have internal predecessors, (1041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:18,409 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:18,409 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:18,409 INFO L186 Difference]: Start difference. First operand has 343 places, 546 transitions, 9424 flow. Second operand 5 states and 1041 transitions. [2022-07-12 10:24:18,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 347 places, 603 transitions, 10947 flow [2022-07-12 10:24:18,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 603 transitions, 10881 flow, removed 18 selfloop flow, removed 1 redundant places. [2022-07-12 10:24:18,781 INFO L242 Difference]: Finished difference. Result has 347 places, 549 transitions, 9542 flow [2022-07-12 10:24:18,782 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=9286, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=544, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=474, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=9542, PETRI_PLACES=347, PETRI_TRANSITIONS=549} [2022-07-12 10:24:18,782 INFO L279 CegarLoopForPetriNet]: 211 programPoint places, 136 predicate places. [2022-07-12 10:24:18,782 INFO L495 AbstractCegarLoop]: Abstraction has has 347 places, 549 transitions, 9542 flow [2022-07-12 10:24:18,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:18,783 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:24:18,783 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:24:18,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-12 10:24:18,783 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-12 10:24:18,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:24:18,783 INFO L85 PathProgramCache]: Analyzing trace with hash -788473097, now seen corresponding path program 11 times [2022-07-12 10:24:18,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:24:18,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113819266] [2022-07-12 10:24:18,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:24:18,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:24:18,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:24:18,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:24:18,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:24:18,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113819266] [2022-07-12 10:24:18,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113819266] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:24:18,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:24:18,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 10:24:18,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654295856] [2022-07-12 10:24:18,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:24:18,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 10:24:18,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:24:18,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 10:24:18,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-07-12 10:24:18,876 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2022-07-12 10:24:18,877 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 549 transitions, 9542 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:18,877 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:24:18,877 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2022-07-12 10:24:18,877 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:24:20,847 INFO L129 PetriNetUnfolder]: 1578/13797 cut-off events. [2022-07-12 10:24:20,847 INFO L130 PetriNetUnfolder]: For 75278/75921 co-relation queries the response was YES. [2022-07-12 10:24:21,002 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34058 conditions, 13797 events. 1578/13797 cut-off events. For 75278/75921 co-relation queries the response was YES. Maximal size of possible extension queue 602. Compared 188841 event pairs, 384 based on Foata normal form. 114/13222 useless extension candidates. Maximal degree in co-relation 32645. Up to 1059 conditions per place. [2022-07-12 10:24:21,042 INFO L132 encePairwiseOnDemand]: 217/232 looper letters, 303 selfloop transitions, 105 changer transitions 2/598 dead transitions. [2022-07-12 10:24:21,043 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 598 transitions, 11008 flow [2022-07-12 10:24:21,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 10:24:21,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-07-12 10:24:21,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1050 transitions. [2022-07-12 10:24:21,044 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.9051724137931034 [2022-07-12 10:24:21,044 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1050 transitions. [2022-07-12 10:24:21,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1050 transitions. [2022-07-12 10:24:21,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:24:21,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1050 transitions. [2022-07-12 10:24:21,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 210.0) internal successors, (1050), 5 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:21,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:21,047 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:21,047 INFO L186 Difference]: Start difference. First operand has 347 places, 549 transitions, 9542 flow. Second operand 5 states and 1050 transitions. [2022-07-12 10:24:21,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 598 transitions, 11008 flow [2022-07-12 10:24:21,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 598 transitions, 10927 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-07-12 10:24:21,382 INFO L242 Difference]: Finished difference. Result has 350 places, 552 transitions, 9786 flow [2022-07-12 10:24:21,383 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=9425, PETRI_DIFFERENCE_MINUEND_PLACES=345, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=548, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=101, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=443, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=9786, PETRI_PLACES=350, PETRI_TRANSITIONS=552} [2022-07-12 10:24:21,383 INFO L279 CegarLoopForPetriNet]: 211 programPoint places, 139 predicate places. [2022-07-12 10:24:21,383 INFO L495 AbstractCegarLoop]: Abstraction has has 350 places, 552 transitions, 9786 flow [2022-07-12 10:24:21,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:21,383 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:24:21,384 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:24:21,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-12 10:24:21,384 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-12 10:24:21,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:24:21,384 INFO L85 PathProgramCache]: Analyzing trace with hash -2014304507, now seen corresponding path program 12 times [2022-07-12 10:24:21,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:24:21,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783841870] [2022-07-12 10:24:21,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:24:21,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:24:21,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:24:21,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:24:21,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:24:21,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783841870] [2022-07-12 10:24:21,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783841870] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:24:21,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:24:21,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 10:24:21,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838573756] [2022-07-12 10:24:21,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:24:21,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 10:24:21,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:24:21,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 10:24:21,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-12 10:24:21,440 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2022-07-12 10:24:21,441 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 350 places, 552 transitions, 9786 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:21,441 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:24:21,441 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2022-07-12 10:24:21,441 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:24:23,463 INFO L129 PetriNetUnfolder]: 1579/13675 cut-off events. [2022-07-12 10:24:23,464 INFO L130 PetriNetUnfolder]: For 75564/76216 co-relation queries the response was YES. [2022-07-12 10:24:23,631 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34114 conditions, 13675 events. 1579/13675 cut-off events. For 75564/76216 co-relation queries the response was YES. Maximal size of possible extension queue 610. Compared 187486 event pairs, 432 based on Foata normal form. 110/13097 useless extension candidates. Maximal degree in co-relation 32701. Up to 1471 conditions per place. [2022-07-12 10:24:23,675 INFO L132 encePairwiseOnDemand]: 216/232 looper letters, 320 selfloop transitions, 101 changer transitions 0/609 dead transitions. [2022-07-12 10:24:23,675 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 356 places, 609 transitions, 11187 flow [2022-07-12 10:24:23,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 10:24:23,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-07-12 10:24:23,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1450 transitions. [2022-07-12 10:24:23,678 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8928571428571429 [2022-07-12 10:24:23,678 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1450 transitions. [2022-07-12 10:24:23,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1450 transitions. [2022-07-12 10:24:23,678 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:24:23,678 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1450 transitions. [2022-07-12 10:24:23,680 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 207.14285714285714) internal successors, (1450), 7 states have internal predecessors, (1450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:23,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 232.0) internal successors, (1856), 8 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:23,682 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 232.0) internal successors, (1856), 8 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:23,682 INFO L186 Difference]: Start difference. First operand has 350 places, 552 transitions, 9786 flow. Second operand 7 states and 1450 transitions. [2022-07-12 10:24:23,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 356 places, 609 transitions, 11187 flow [2022-07-12 10:24:24,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 609 transitions, 11010 flow, removed 2 selfloop flow, removed 3 redundant places. [2022-07-12 10:24:24,134 INFO L242 Difference]: Finished difference. Result has 354 places, 556 transitions, 9910 flow [2022-07-12 10:24:24,135 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=9574, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=551, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=97, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=9910, PETRI_PLACES=354, PETRI_TRANSITIONS=556} [2022-07-12 10:24:24,135 INFO L279 CegarLoopForPetriNet]: 211 programPoint places, 143 predicate places. [2022-07-12 10:24:24,136 INFO L495 AbstractCegarLoop]: Abstraction has has 354 places, 556 transitions, 9910 flow [2022-07-12 10:24:24,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:24,136 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:24:24,136 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:24:24,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-12 10:24:24,137 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-12 10:24:24,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:24:24,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1862321501, now seen corresponding path program 11 times [2022-07-12 10:24:24,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:24:24,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809675799] [2022-07-12 10:24:24,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:24:24,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:24:24,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:24:24,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:24:24,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:24:24,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809675799] [2022-07-12 10:24:24,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809675799] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:24:24,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:24:24,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 10:24:24,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066347621] [2022-07-12 10:24:24,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:24:24,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 10:24:24,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:24:24,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 10:24:24,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-12 10:24:24,196 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2022-07-12 10:24:24,197 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 556 transitions, 9910 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:24,197 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:24:24,197 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2022-07-12 10:24:24,197 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:24:26,319 INFO L129 PetriNetUnfolder]: 1588/14242 cut-off events. [2022-07-12 10:24:26,320 INFO L130 PetriNetUnfolder]: For 76975/77592 co-relation queries the response was YES. [2022-07-12 10:24:26,486 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34805 conditions, 14242 events. 1588/14242 cut-off events. For 76975/77592 co-relation queries the response was YES. Maximal size of possible extension queue 612. Compared 194530 event pairs, 424 based on Foata normal form. 115/13616 useless extension candidates. Maximal degree in co-relation 33381. Up to 1031 conditions per place. [2022-07-12 10:24:26,529 INFO L132 encePairwiseOnDemand]: 216/232 looper letters, 280 selfloop transitions, 130 changer transitions 4/602 dead transitions. [2022-07-12 10:24:26,529 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 602 transitions, 11271 flow [2022-07-12 10:24:26,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 10:24:26,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-07-12 10:24:26,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1449 transitions. [2022-07-12 10:24:26,530 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8922413793103449 [2022-07-12 10:24:26,530 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1449 transitions. [2022-07-12 10:24:26,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1449 transitions. [2022-07-12 10:24:26,531 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:24:26,531 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1449 transitions. [2022-07-12 10:24:26,532 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 207.0) internal successors, (1449), 7 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:26,533 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 232.0) internal successors, (1856), 8 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:26,534 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 232.0) internal successors, (1856), 8 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:26,534 INFO L186 Difference]: Start difference. First operand has 354 places, 556 transitions, 9910 flow. Second operand 7 states and 1449 transitions. [2022-07-12 10:24:26,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 602 transitions, 11271 flow [2022-07-12 10:24:26,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 602 transitions, 11112 flow, removed 17 selfloop flow, removed 3 redundant places. [2022-07-12 10:24:26,968 INFO L242 Difference]: Finished difference. Result has 358 places, 556 transitions, 10081 flow [2022-07-12 10:24:26,969 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=9771, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=556, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=130, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=426, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=10081, PETRI_PLACES=358, PETRI_TRANSITIONS=556} [2022-07-12 10:24:26,969 INFO L279 CegarLoopForPetriNet]: 211 programPoint places, 147 predicate places. [2022-07-12 10:24:26,969 INFO L495 AbstractCegarLoop]: Abstraction has has 358 places, 556 transitions, 10081 flow [2022-07-12 10:24:26,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:26,970 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:24:26,970 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:24:26,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-12 10:24:26,970 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-12 10:24:26,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:24:26,970 INFO L85 PathProgramCache]: Analyzing trace with hash 375985709, now seen corresponding path program 12 times [2022-07-12 10:24:26,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:24:26,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325285333] [2022-07-12 10:24:26,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:24:26,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:24:26,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:24:27,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:24:27,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:24:27,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325285333] [2022-07-12 10:24:27,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325285333] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:24:27,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:24:27,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 10:24:27,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259013216] [2022-07-12 10:24:27,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:24:27,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 10:24:27,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:24:27,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 10:24:27,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 10:24:27,032 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2022-07-12 10:24:27,033 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 556 transitions, 10081 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:27,033 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:24:27,033 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2022-07-12 10:24:27,033 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:24:29,255 INFO L129 PetriNetUnfolder]: 1594/13949 cut-off events. [2022-07-12 10:24:29,255 INFO L130 PetriNetUnfolder]: For 78593/79199 co-relation queries the response was YES. [2022-07-12 10:24:29,344 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34668 conditions, 13949 events. 1594/13949 cut-off events. For 78593/79199 co-relation queries the response was YES. Maximal size of possible extension queue 598. Compared 190428 event pairs, 477 based on Foata normal form. 111/13315 useless extension candidates. Maximal degree in co-relation 33236. Up to 1077 conditions per place. [2022-07-12 10:24:29,378 INFO L132 encePairwiseOnDemand]: 218/232 looper letters, 297 selfloop transitions, 107 changer transitions 5/597 dead transitions. [2022-07-12 10:24:29,378 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 597 transitions, 11317 flow [2022-07-12 10:24:29,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 10:24:29,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-07-12 10:24:29,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1245 transitions. [2022-07-12 10:24:29,379 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8943965517241379 [2022-07-12 10:24:29,379 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1245 transitions. [2022-07-12 10:24:29,379 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1245 transitions. [2022-07-12 10:24:29,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:24:29,380 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1245 transitions. [2022-07-12 10:24:29,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 207.5) internal successors, (1245), 6 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:29,382 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 232.0) internal successors, (1624), 7 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:29,382 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 232.0) internal successors, (1624), 7 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:29,382 INFO L186 Difference]: Start difference. First operand has 358 places, 556 transitions, 10081 flow. Second operand 6 states and 1245 transitions. [2022-07-12 10:24:29,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 597 transitions, 11317 flow [2022-07-12 10:24:29,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 597 transitions, 11105 flow, removed 20 selfloop flow, removed 4 redundant places. [2022-07-12 10:24:29,720 INFO L242 Difference]: Finished difference. Result has 359 places, 555 transitions, 10054 flow [2022-07-12 10:24:29,721 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=9840, PETRI_DIFFERENCE_MINUEND_PLACES=354, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=555, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=107, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=448, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=10054, PETRI_PLACES=359, PETRI_TRANSITIONS=555} [2022-07-12 10:24:29,722 INFO L279 CegarLoopForPetriNet]: 211 programPoint places, 148 predicate places. [2022-07-12 10:24:29,722 INFO L495 AbstractCegarLoop]: Abstraction has has 359 places, 555 transitions, 10054 flow [2022-07-12 10:24:29,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:29,722 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:24:29,722 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:24:29,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-12 10:24:29,723 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-12 10:24:29,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:24:29,723 INFO L85 PathProgramCache]: Analyzing trace with hash 76464902, now seen corresponding path program 1 times [2022-07-12 10:24:29,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:24:29,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341935402] [2022-07-12 10:24:29,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:24:29,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:24:29,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:24:29,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:24:29,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:24:29,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341935402] [2022-07-12 10:24:29,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341935402] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:24:29,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:24:29,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 10:24:29,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955894492] [2022-07-12 10:24:29,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:24:29,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 10:24:29,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:24:29,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 10:24:29,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-12 10:24:29,812 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2022-07-12 10:24:29,812 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 359 places, 555 transitions, 10054 flow. Second operand has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:29,812 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:24:29,812 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2022-07-12 10:24:29,813 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:24:32,360 INFO L129 PetriNetUnfolder]: 1650/15384 cut-off events. [2022-07-12 10:24:32,360 INFO L130 PetriNetUnfolder]: For 80653/81372 co-relation queries the response was YES. [2022-07-12 10:24:32,589 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36904 conditions, 15384 events. 1650/15384 cut-off events. For 80653/81372 co-relation queries the response was YES. Maximal size of possible extension queue 668. Compared 217429 event pairs, 395 based on Foata normal form. 150/14807 useless extension candidates. Maximal degree in co-relation 35471. Up to 1096 conditions per place. [2022-07-12 10:24:32,637 INFO L132 encePairwiseOnDemand]: 216/232 looper letters, 382 selfloop transitions, 121 changer transitions 8/699 dead transitions. [2022-07-12 10:24:32,637 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 365 places, 699 transitions, 13309 flow [2022-07-12 10:24:32,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 10:24:32,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-07-12 10:24:32,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1481 transitions. [2022-07-12 10:24:32,638 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.9119458128078818 [2022-07-12 10:24:32,638 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1481 transitions. [2022-07-12 10:24:32,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1481 transitions. [2022-07-12 10:24:32,639 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:24:32,639 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1481 transitions. [2022-07-12 10:24:32,641 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 211.57142857142858) internal successors, (1481), 7 states have internal predecessors, (1481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:32,642 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 232.0) internal successors, (1856), 8 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:32,642 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 232.0) internal successors, (1856), 8 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:32,642 INFO L186 Difference]: Start difference. First operand has 359 places, 555 transitions, 10054 flow. Second operand 7 states and 1481 transitions. [2022-07-12 10:24:32,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 365 places, 699 transitions, 13309 flow [2022-07-12 10:24:33,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 699 transitions, 13184 flow, removed 4 selfloop flow, removed 2 redundant places. [2022-07-12 10:24:33,119 INFO L242 Difference]: Finished difference. Result has 369 places, 598 transitions, 11308 flow [2022-07-12 10:24:33,121 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=9935, PETRI_DIFFERENCE_MINUEND_PLACES=357, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=555, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=449, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=11308, PETRI_PLACES=369, PETRI_TRANSITIONS=598} [2022-07-12 10:24:33,122 INFO L279 CegarLoopForPetriNet]: 211 programPoint places, 158 predicate places. [2022-07-12 10:24:33,122 INFO L495 AbstractCegarLoop]: Abstraction has has 369 places, 598 transitions, 11308 flow [2022-07-12 10:24:33,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:33,122 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:24:33,122 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:24:33,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-12 10:24:33,123 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-12 10:24:33,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:24:33,123 INFO L85 PathProgramCache]: Analyzing trace with hash 672046483, now seen corresponding path program 1 times [2022-07-12 10:24:33,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:24:33,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993198927] [2022-07-12 10:24:33,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:24:33,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:24:33,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:24:33,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:24:33,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:24:33,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993198927] [2022-07-12 10:24:33,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993198927] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:24:33,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:24:33,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 10:24:33,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130439841] [2022-07-12 10:24:33,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:24:33,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 10:24:33,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:24:33,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 10:24:33,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-07-12 10:24:33,224 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 232 [2022-07-12 10:24:33,225 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 369 places, 598 transitions, 11308 flow. Second operand has 10 states, 10 states have (on average 193.6) internal successors, (1936), 10 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:33,225 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:24:33,225 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 232 [2022-07-12 10:24:33,225 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:24:39,826 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([590] L50-15-->L50-16: Formula: (= |v_thread2Thread1of1ForFork1_#t~ite6#1_3| |v_thread2Thread1of1ForFork1_#t~ite7#1_7|) InVars {thread2Thread1of1ForFork1_#t~ite6#1=|v_thread2Thread1of1ForFork1_#t~ite6#1_3|} OutVars{thread2Thread1of1ForFork1_#t~ite6#1=|v_thread2Thread1of1ForFork1_#t~ite6#1_3|, thread2Thread1of1ForFork1_#t~ite7#1=|v_thread2Thread1of1ForFork1_#t~ite7#1_7|} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_#t~ite7#1][138], [408#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))) (or (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)) (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), 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~sort_label_is_null_3~0) 0))]) [2022-07-12 10:24:39,826 INFO L384 tUnfolder$Statistics]: this new event has 126 ancestors and is cut-off event [2022-07-12 10:24:39,827 INFO L387 tUnfolder$Statistics]: existing Event has 122 ancestors and is cut-off event [2022-07-12 10:24:39,827 INFO L387 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-07-12 10:24:39,827 INFO L387 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-07-12 10:24:39,948 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([590] L50-15-->L50-16: Formula: (= |v_thread2Thread1of1ForFork1_#t~ite6#1_3| |v_thread2Thread1of1ForFork1_#t~ite7#1_7|) InVars {thread2Thread1of1ForFork1_#t~ite6#1=|v_thread2Thread1of1ForFork1_#t~ite6#1_3|} OutVars{thread2Thread1of1ForFork1_#t~ite6#1=|v_thread2Thread1of1ForFork1_#t~ite6#1_3|, thread2Thread1of1ForFork1_#t~ite7#1=|v_thread2Thread1of1ForFork1_#t~ite7#1_7|} AuxVars[] 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tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([590] L50-15-->L50-16: Formula: (= |v_thread2Thread1of1ForFork1_#t~ite6#1_3| |v_thread2Thread1of1ForFork1_#t~ite7#1_7|) InVars {thread2Thread1of1ForFork1_#t~ite6#1=|v_thread2Thread1of1ForFork1_#t~ite6#1_3|} OutVars{thread2Thread1of1ForFork1_#t~ite6#1=|v_thread2Thread1of1ForFork1_#t~ite6#1_3|, thread2Thread1of1ForFork1_#t~ite7#1=|v_thread2Thread1of1ForFork1_#t~ite7#1_7|} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_#t~ite7#1][138], [408#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))) (or (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)) (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 237#(and (= 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~sort_label_is_null_3~0) 0))]) [2022-07-12 10:24:40,050 INFO L384 tUnfolder$Statistics]: this new event has 128 ancestors and is cut-off event [2022-07-12 10:24:40,050 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-07-12 10:24:40,050 INFO L387 tUnfolder$Statistics]: existing Event has 124 ancestors and is cut-off event [2022-07-12 10:24:40,050 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-07-12 10:24:40,235 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([590] L50-15-->L50-16: Formula: (= |v_thread2Thread1of1ForFork1_#t~ite6#1_3| |v_thread2Thread1of1ForFork1_#t~ite7#1_7|) InVars {thread2Thread1of1ForFork1_#t~ite6#1=|v_thread2Thread1of1ForFork1_#t~ite6#1_3|} OutVars{thread2Thread1of1ForFork1_#t~ite6#1=|v_thread2Thread1of1ForFork1_#t~ite6#1_3|, thread2Thread1of1ForFork1_#t~ite7#1=|v_thread2Thread1of1ForFork1_#t~ite7#1_7|} AuxVars[] 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[2022-07-12 10:24:40,299 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([590] L50-15-->L50-16: Formula: (= |v_thread2Thread1of1ForFork1_#t~ite6#1_3| |v_thread2Thread1of1ForFork1_#t~ite7#1_7|) InVars {thread2Thread1of1ForFork1_#t~ite6#1=|v_thread2Thread1of1ForFork1_#t~ite6#1_3|} OutVars{thread2Thread1of1ForFork1_#t~ite6#1=|v_thread2Thread1of1ForFork1_#t~ite6#1_3|, thread2Thread1of1ForFork1_#t~ite7#1=|v_thread2Thread1of1ForFork1_#t~ite7#1_7|} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_#t~ite7#1][138], [408#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))) (or (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)) (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 233#(and (= ~result_8~0 0) (= 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~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))]) [2022-07-12 10:24:40,299 INFO L384 tUnfolder$Statistics]: this new event has 130 ancestors and is cut-off event [2022-07-12 10:24:40,299 INFO L387 tUnfolder$Statistics]: existing Event has 126 ancestors and is cut-off event [2022-07-12 10:24:40,299 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2022-07-12 10:24:40,299 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2022-07-12 10:24:40,772 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([635] L56-15-->L56-16: Formula: (= |v_thread3Thread1of1ForFork2_#t~ite10#1_3| |v_thread3Thread1of1ForFork2_#t~ite11#1_7|) InVars {thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite11#1=|v_thread3Thread1of1ForFork2_#t~ite11#1_7|, 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ancestors and is cut-off event [2022-07-12 10:24:40,786 INFO L387 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-07-12 10:24:40,786 INFO L387 tUnfolder$Statistics]: existing Event has 123 ancestors and is cut-off event [2022-07-12 10:24:40,798 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([635] L56-15-->L56-16: Formula: (= |v_thread3Thread1of1ForFork2_#t~ite10#1_3| |v_thread3Thread1of1ForFork2_#t~ite11#1_7|) InVars {thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite11#1=|v_thread3Thread1of1ForFork2_#t~ite11#1_7|, thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_#t~ite11#1][467], [408#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))) (or (= 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INFO L384 tUnfolder$Statistics]: this new event has 150 ancestors and is cut-off event [2022-07-12 10:24:40,803 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-07-12 10:24:40,804 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-07-12 10:24:40,804 INFO L387 tUnfolder$Statistics]: existing Event has 124 ancestors and is cut-off event [2022-07-12 10:24:40,816 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([635] L56-15-->L56-16: Formula: (= |v_thread3Thread1of1ForFork2_#t~ite10#1_3| |v_thread3Thread1of1ForFork2_#t~ite11#1_7|) InVars {thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite11#1=|v_thread3Thread1of1ForFork2_#t~ite11#1_7|, thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_#t~ite11#1][467], [408#(and (or 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ancestors and is cut-off event [2022-07-12 10:24:40,824 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([635] L56-15-->L56-16: Formula: (= |v_thread3Thread1of1ForFork2_#t~ite10#1_3| |v_thread3Thread1of1ForFork2_#t~ite11#1_7|) InVars {thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite11#1=|v_thread3Thread1of1ForFork2_#t~ite11#1_7|, thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_#t~ite11#1][467], [408#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))) (or (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)) (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 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[2022-07-12 10:24:40,839 INFO L387 tUnfolder$Statistics]: existing Event has 125 ancestors and is cut-off event [2022-07-12 10:24:40,839 INFO L387 tUnfolder$Statistics]: existing Event has 103 ancestors and is cut-off event [2022-07-12 10:24:40,847 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([635] L56-15-->L56-16: Formula: (= |v_thread3Thread1of1ForFork2_#t~ite10#1_3| |v_thread3Thread1of1ForFork2_#t~ite11#1_7|) InVars {thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite11#1=|v_thread3Thread1of1ForFork2_#t~ite11#1_7|, thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_#t~ite11#1][467], [408#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))) (or (= ~sort_label_is_null_3~0 (* (div 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tUnfolder$Statistics]: existing Event has 152 ancestors and is cut-off event [2022-07-12 10:24:40,859 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2022-07-12 10:24:40,859 INFO L387 tUnfolder$Statistics]: existing Event has 126 ancestors and is cut-off event [2022-07-12 10:24:40,859 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2022-07-12 10:24:40,977 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([635] L56-15-->L56-16: Formula: (= |v_thread3Thread1of1ForFork2_#t~ite10#1_3| |v_thread3Thread1of1ForFork2_#t~ite11#1_7|) InVars {thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite11#1=|v_thread3Thread1of1ForFork2_#t~ite11#1_7|, thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_#t~ite11#1][467], [408#(and (or (= 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ancestors and is cut-off event [2022-07-12 10:24:40,985 INFO L387 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-07-12 10:24:40,985 INFO L387 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-07-12 10:24:40,985 INFO L387 tUnfolder$Statistics]: existing Event has 133 ancestors and is cut-off event [2022-07-12 10:24:40,985 INFO L387 tUnfolder$Statistics]: existing Event has 159 ancestors and is cut-off event [2022-07-12 10:24:41,017 INFO L129 PetriNetUnfolder]: 9851/34326 cut-off events. [2022-07-12 10:24:41,017 INFO L130 PetriNetUnfolder]: For 75535/84150 co-relation queries the response was YES. [2022-07-12 10:24:41,453 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75859 conditions, 34326 events. 9851/34326 cut-off events. For 75535/84150 co-relation queries the response was YES. Maximal size of possible extension queue 2649. Compared 490640 event pairs, 4918 based on Foata normal form. 123/32265 useless extension candidates. Maximal degree in co-relation 69605. Up to 12167 conditions per place. [2022-07-12 10:24:41,629 INFO L132 encePairwiseOnDemand]: 219/232 looper letters, 95 selfloop transitions, 7 changer transitions 53/713 dead transitions. [2022-07-12 10:24:41,629 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 713 transitions, 11984 flow [2022-07-12 10:24:41,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-12 10:24:41,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-07-12 10:24:41,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 4724 transitions. [2022-07-12 10:24:41,632 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8484195402298851 [2022-07-12 10:24:41,632 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 4724 transitions. [2022-07-12 10:24:41,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 4724 transitions. [2022-07-12 10:24:41,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:24:41,633 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 4724 transitions. [2022-07-12 10:24:41,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 196.83333333333334) internal successors, (4724), 24 states have internal predecessors, (4724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:41,640 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 232.0) internal successors, (5800), 25 states have internal predecessors, (5800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:41,641 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 232.0) internal successors, (5800), 25 states have internal predecessors, (5800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:41,641 INFO L186 Difference]: Start difference. First operand has 369 places, 598 transitions, 11308 flow. Second operand 24 states and 4724 transitions. [2022-07-12 10:24:41,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 713 transitions, 11984 flow [2022-07-12 10:24:42,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 713 transitions, 11966 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-07-12 10:24:42,030 INFO L242 Difference]: Finished difference. Result has 414 places, 604 transitions, 11408 flow [2022-07-12 10:24:42,031 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=11290, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=598, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=591, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=11408, PETRI_PLACES=414, PETRI_TRANSITIONS=604} [2022-07-12 10:24:42,032 INFO L279 CegarLoopForPetriNet]: 211 programPoint places, 203 predicate places. [2022-07-12 10:24:42,032 INFO L495 AbstractCegarLoop]: Abstraction has has 414 places, 604 transitions, 11408 flow [2022-07-12 10:24:42,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 193.6) internal successors, (1936), 10 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:42,033 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:24:42,033 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:24:42,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-12 10:24:42,033 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-12 10:24:42,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:24:42,034 INFO L85 PathProgramCache]: Analyzing trace with hash -239866165, now seen corresponding path program 1 times [2022-07-12 10:24:42,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:24:42,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358192403] [2022-07-12 10:24:42,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:24:42,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:24:42,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:24:42,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:24:42,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:24:42,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358192403] [2022-07-12 10:24:42,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358192403] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:24:42,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:24:42,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 10:24:42,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976755330] [2022-07-12 10:24:42,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:24:42,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 10:24:42,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:24:42,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 10:24:42,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 10:24:42,112 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 232 [2022-07-12 10:24:42,113 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 604 transitions, 11408 flow. Second operand has 7 states, 7 states have (on average 201.85714285714286) internal successors, (1413), 7 states have internal predecessors, (1413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:42,113 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:24:42,113 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 232 [2022-07-12 10:24:42,113 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:24:45,959 INFO L129 PetriNetUnfolder]: 1960/17952 cut-off events. [2022-07-12 10:24:45,959 INFO L130 PetriNetUnfolder]: For 95709/105981 co-relation queries the response was YES. [2022-07-12 10:24:46,206 INFO L84 FinitePrefix]: Finished finitePrefix Result has 49951 conditions, 17952 events. 1960/17952 cut-off events. For 95709/105981 co-relation queries the response was YES. Maximal size of possible extension queue 626. Compared 257828 event pairs, 966 based on Foata normal form. 591/17575 useless extension candidates. Maximal degree in co-relation 49520. Up to 1364 conditions per place. [2022-07-12 10:24:46,256 INFO L132 encePairwiseOnDemand]: 224/232 looper letters, 23 selfloop transitions, 5 changer transitions 82/624 dead transitions. [2022-07-12 10:24:46,256 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 624 transitions, 11545 flow [2022-07-12 10:24:46,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 10:24:46,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-07-12 10:24:46,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1834 transitions. [2022-07-12 10:24:46,258 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8783524904214559 [2022-07-12 10:24:46,258 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1834 transitions. [2022-07-12 10:24:46,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1834 transitions. [2022-07-12 10:24:46,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:24:46,259 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1834 transitions. [2022-07-12 10:24:46,260 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 203.77777777777777) internal successors, (1834), 9 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) [2022-07-12 10:24:46,262 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 232.0) internal successors, (2320), 10 states have internal predecessors, (2320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:46,262 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 232.0) internal successors, (2320), 10 states have internal predecessors, (2320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:46,262 INFO L186 Difference]: Start difference. First operand has 414 places, 604 transitions, 11408 flow. Second operand 9 states and 1834 transitions. [2022-07-12 10:24:46,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 624 transitions, 11545 flow [2022-07-12 10:24:46,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 624 transitions, 11526 flow, removed 9 selfloop flow, removed 10 redundant places. [2022-07-12 10:24:46,968 INFO L242 Difference]: Finished difference. Result has 402 places, 540 transitions, 9418 flow [2022-07-12 10:24:46,968 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=11389, PETRI_DIFFERENCE_MINUEND_PLACES=387, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=604, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=599, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=9418, PETRI_PLACES=402, PETRI_TRANSITIONS=540} [2022-07-12 10:24:46,969 INFO L279 CegarLoopForPetriNet]: 211 programPoint places, 191 predicate places. [2022-07-12 10:24:46,969 INFO L495 AbstractCegarLoop]: Abstraction has has 402 places, 540 transitions, 9418 flow [2022-07-12 10:24:46,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 201.85714285714286) internal successors, (1413), 7 states have internal predecessors, (1413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:46,969 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:24:46,969 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:24:46,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-12 10:24:46,970 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-12 10:24:46,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:24:46,970 INFO L85 PathProgramCache]: Analyzing trace with hash -287043365, now seen corresponding path program 2 times [2022-07-12 10:24:46,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:24:46,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59182377] [2022-07-12 10:24:46,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:24:46,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:24:46,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:24:47,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:24:47,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:24:47,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59182377] [2022-07-12 10:24:47,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59182377] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:24:47,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:24:47,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 10:24:47,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987223234] [2022-07-12 10:24:47,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:24:47,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 10:24:47,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:24:47,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 10:24:47,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-07-12 10:24:47,070 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 232 [2022-07-12 10:24:47,071 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 540 transitions, 9418 flow. Second operand has 10 states, 10 states have (on average 193.6) internal successors, (1936), 10 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:47,071 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:24:47,072 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 232 [2022-07-12 10:24:47,072 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:24:53,467 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([590] L50-15-->L50-16: Formula: (= |v_thread2Thread1of1ForFork1_#t~ite6#1_3| |v_thread2Thread1of1ForFork1_#t~ite7#1_7|) InVars {thread2Thread1of1ForFork1_#t~ite6#1=|v_thread2Thread1of1ForFork1_#t~ite6#1_3|} OutVars{thread2Thread1of1ForFork1_#t~ite6#1=|v_thread2Thread1of1ForFork1_#t~ite6#1_3|, thread2Thread1of1ForFork1_#t~ite7#1=|v_thread2Thread1of1ForFork1_#t~ite7#1_7|} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_#t~ite7#1][128], [Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 231#(= ~result_7~0 0), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), Black: 516#(or (and (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (not (= (+ ~sort_label_is_null_5~0 (* (- 256) (div ~sort_label_is_null_5~0 256))) 0))) (and (= (+ ~sort_label_is_null_5~0 (* (- 256) (div ~sort_label_is_null_5~0 256))) 0) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (and (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)) (and (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (not (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)))), Black: 518#(= (+ ~sort_label_is_null_5~0 (* (- 256) (div ~sort_label_is_null_5~0 256))) 0), 365#(= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0), Black: 514#true, Black: 517#(or (= (+ ~sort_label_is_null_5~0 (* (- 256) (div ~sort_label_is_null_5~0 256))) 0) (not (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)))), Black: 520#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 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256)))), Black: 292#true, Black: 295#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (not (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0))), Black: 308#(or (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 294#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), Black: 307#(or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= (+ ~sort_label_is_null_5~0 (* (- 256) (div ~sort_label_is_null_5~0 256))) 0)) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), Black: 305#true, Black: 319#(and (= 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[2022-07-12 10:24:53,467 INFO L384 tUnfolder$Statistics]: this new event has 126 ancestors and is cut-off event [2022-07-12 10:24:53,467 INFO L387 tUnfolder$Statistics]: existing Event has 122 ancestors and is cut-off event [2022-07-12 10:24:53,467 INFO L387 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-07-12 10:24:53,467 INFO L387 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-07-12 10:24:53,568 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([590] L50-15-->L50-16: Formula: (= |v_thread2Thread1of1ForFork1_#t~ite6#1_3| |v_thread2Thread1of1ForFork1_#t~ite7#1_7|) InVars {thread2Thread1of1ForFork1_#t~ite6#1=|v_thread2Thread1of1ForFork1_#t~ite6#1_3|} OutVars{thread2Thread1of1ForFork1_#t~ite6#1=|v_thread2Thread1of1ForFork1_#t~ite6#1_3|, thread2Thread1of1ForFork1_#t~ite7#1=|v_thread2Thread1of1ForFork1_#t~ite7#1_7|} AuxVars[] 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[2022-07-12 10:24:53,646 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-07-12 10:24:53,646 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-07-12 10:24:53,723 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([590] L50-15-->L50-16: Formula: (= |v_thread2Thread1of1ForFork1_#t~ite6#1_3| |v_thread2Thread1of1ForFork1_#t~ite7#1_7|) InVars {thread2Thread1of1ForFork1_#t~ite6#1=|v_thread2Thread1of1ForFork1_#t~ite6#1_3|} OutVars{thread2Thread1of1ForFork1_#t~ite6#1=|v_thread2Thread1of1ForFork1_#t~ite6#1_3|, thread2Thread1of1ForFork1_#t~ite7#1=|v_thread2Thread1of1ForFork1_#t~ite7#1_7|} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_#t~ite7#1][128], [Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 237#(and (= ~result_8~0 0) (= 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ancestors and is cut-off event [2022-07-12 10:24:54,359 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([635] L56-15-->L56-16: Formula: (= |v_thread3Thread1of1ForFork2_#t~ite10#1_3| |v_thread3Thread1of1ForFork2_#t~ite11#1_7|) InVars {thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite11#1=|v_thread3Thread1of1ForFork2_#t~ite11#1_7|, thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_#t~ite11#1][407], [Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 231#(= ~result_7~0 0), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), Black: 516#(or (and (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (not (= (+ ~sort_label_is_null_5~0 (* (- 256) (div 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[2022-07-12 10:24:54,359 INFO L384 tUnfolder$Statistics]: this new event has 148 ancestors and is cut-off event [2022-07-12 10:24:54,360 INFO L387 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-07-12 10:24:54,360 INFO L387 tUnfolder$Statistics]: existing Event has 122 ancestors and is cut-off event [2022-07-12 10:24:54,360 INFO L387 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-07-12 10:24:54,369 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([635] L56-15-->L56-16: Formula: (= |v_thread3Thread1of1ForFork2_#t~ite10#1_3| |v_thread3Thread1of1ForFork2_#t~ite11#1_7|) InVars {thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite11#1=|v_thread3Thread1of1ForFork2_#t~ite11#1_7|, thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} AuxVars[] 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10:24:54,374 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([635] L56-15-->L56-16: Formula: (= |v_thread3Thread1of1ForFork2_#t~ite10#1_3| |v_thread3Thread1of1ForFork2_#t~ite11#1_7|) InVars {thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite11#1=|v_thread3Thread1of1ForFork2_#t~ite11#1_7|, thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_#t~ite11#1][407], [Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 231#(= ~result_7~0 0), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), Black: 516#(or (and (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (not (= (+ ~sort_label_is_null_5~0 (* (- 256) (div ~sort_label_is_null_5~0 256))) 0))) (and (= (+ 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tUnfolder$Statistics]: this new event has 149 ancestors and is cut-off event [2022-07-12 10:24:54,374 INFO L387 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-07-12 10:24:54,374 INFO L387 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-07-12 10:24:54,374 INFO L387 tUnfolder$Statistics]: existing Event has 123 ancestors and is cut-off event [2022-07-12 10:24:54,384 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([635] L56-15-->L56-16: Formula: (= |v_thread3Thread1of1ForFork2_#t~ite10#1_3| |v_thread3Thread1of1ForFork2_#t~ite11#1_7|) InVars {thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite11#1=|v_thread3Thread1of1ForFork2_#t~ite11#1_7|, thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_#t~ite11#1][407], [Black: 240#(and (= 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102 ancestors and is cut-off event [2022-07-12 10:24:54,390 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-07-12 10:24:54,390 INFO L387 tUnfolder$Statistics]: existing Event has 124 ancestors and is cut-off event [2022-07-12 10:24:54,400 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([635] L56-15-->L56-16: Formula: (= |v_thread3Thread1of1ForFork2_#t~ite10#1_3| |v_thread3Thread1of1ForFork2_#t~ite11#1_7|) InVars {thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite11#1=|v_thread3Thread1of1ForFork2_#t~ite11#1_7|, thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_#t~ite11#1][407], [Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 231#(= ~result_7~0 0), Black: 233#(and (= ~result_8~0 0) (= 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10:24:54,415 INFO L387 tUnfolder$Statistics]: existing Event has 103 ancestors and is cut-off event [2022-07-12 10:24:54,415 INFO L387 tUnfolder$Statistics]: existing Event has 125 ancestors and is cut-off event [2022-07-12 10:24:54,428 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([635] L56-15-->L56-16: Formula: (= |v_thread3Thread1of1ForFork2_#t~ite10#1_3| |v_thread3Thread1of1ForFork2_#t~ite11#1_7|) InVars {thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite11#1=|v_thread3Thread1of1ForFork2_#t~ite11#1_7|, thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_#t~ite11#1][407], [Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 231#(= ~result_7~0 0), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 237#(and (= ~result_8~0 0) (= 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event [2022-07-12 10:24:54,438 INFO L387 tUnfolder$Statistics]: existing Event has 126 ancestors and is cut-off event [2022-07-12 10:24:54,447 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([635] L56-15-->L56-16: Formula: (= |v_thread3Thread1of1ForFork2_#t~ite10#1_3| |v_thread3Thread1of1ForFork2_#t~ite11#1_7|) InVars {thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite11#1=|v_thread3Thread1of1ForFork2_#t~ite11#1_7|, thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_#t~ite11#1][407], [Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 231#(= ~result_7~0 0), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), Black: 516#(or (and (not (= (+ (* (- 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~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)]) [2022-07-12 10:24:54,447 INFO L384 tUnfolder$Statistics]: this new event has 152 ancestors and is cut-off event [2022-07-12 10:24:54,448 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2022-07-12 10:24:54,448 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2022-07-12 10:24:54,448 INFO L387 tUnfolder$Statistics]: existing Event has 126 ancestors and is cut-off event [2022-07-12 10:24:54,448 INFO L387 tUnfolder$Statistics]: existing Event has 152 ancestors and is cut-off event [2022-07-12 10:24:54,541 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([635] L56-15-->L56-16: Formula: (= |v_thread3Thread1of1ForFork2_#t~ite10#1_3| |v_thread3Thread1of1ForFork2_#t~ite11#1_7|) InVars {thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} 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cut-off event [2022-07-12 10:24:54,548 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([635] L56-15-->L56-16: Formula: (= |v_thread3Thread1of1ForFork2_#t~ite10#1_3| |v_thread3Thread1of1ForFork2_#t~ite11#1_7|) InVars {thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite11#1=|v_thread3Thread1of1ForFork2_#t~ite11#1_7|, thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_#t~ite11#1][407], [Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 231#(= ~result_7~0 0), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), Black: 516#(or (and (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (not (= (+ ~sort_label_is_null_5~0 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tUnfolder$Statistics]: this new event has 159 ancestors and is cut-off event [2022-07-12 10:24:54,548 INFO L387 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-07-12 10:24:54,548 INFO L387 tUnfolder$Statistics]: existing Event has 133 ancestors and is cut-off event [2022-07-12 10:24:54,548 INFO L387 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-07-12 10:24:54,548 INFO L387 tUnfolder$Statistics]: existing Event has 159 ancestors and is cut-off event [2022-07-12 10:24:54,581 INFO L129 PetriNetUnfolder]: 8799/30009 cut-off events. [2022-07-12 10:24:54,581 INFO L130 PetriNetUnfolder]: For 88853/93791 co-relation queries the response was YES. [2022-07-12 10:24:55,233 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86922 conditions, 30009 events. 8799/30009 cut-off events. For 88853/93791 co-relation queries the response was YES. Maximal size of possible extension queue 2610. Compared 418904 event pairs, 4390 based on Foata normal form. 74/28016 useless extension candidates. Maximal degree in co-relation 85535. Up to 10907 conditions per place. [2022-07-12 10:24:55,329 INFO L132 encePairwiseOnDemand]: 219/232 looper letters, 84 selfloop transitions, 13 changer transitions 43/635 dead transitions. [2022-07-12 10:24:55,329 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 635 transitions, 10256 flow [2022-07-12 10:24:55,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-12 10:24:55,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-07-12 10:24:55,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3933 transitions. [2022-07-12 10:24:55,332 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8476293103448276 [2022-07-12 10:24:55,332 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3933 transitions. [2022-07-12 10:24:55,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3933 transitions. [2022-07-12 10:24:55,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:24:55,333 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3933 transitions. [2022-07-12 10:24:55,336 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 196.65) internal successors, (3933), 20 states have internal predecessors, (3933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:55,339 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 232.0) internal successors, (4872), 21 states have internal predecessors, (4872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:55,340 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 232.0) internal successors, (4872), 21 states have internal predecessors, (4872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:55,340 INFO L186 Difference]: Start difference. First operand has 402 places, 540 transitions, 9418 flow. Second operand 20 states and 3933 transitions. [2022-07-12 10:24:55,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 635 transitions, 10256 flow [2022-07-12 10:24:55,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 411 places, 635 transitions, 10036 flow, removed 26 selfloop flow, removed 7 redundant places. [2022-07-12 10:24:55,865 INFO L242 Difference]: Finished difference. Result has 428 places, 552 transitions, 9385 flow [2022-07-12 10:24:55,865 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=9214, PETRI_DIFFERENCE_MINUEND_PLACES=392, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=540, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=532, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=9385, PETRI_PLACES=428, PETRI_TRANSITIONS=552} [2022-07-12 10:24:55,866 INFO L279 CegarLoopForPetriNet]: 211 programPoint places, 217 predicate places. [2022-07-12 10:24:55,866 INFO L495 AbstractCegarLoop]: Abstraction has has 428 places, 552 transitions, 9385 flow [2022-07-12 10:24:55,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 193.6) internal successors, (1936), 10 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:55,867 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:24:55,867 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:24:55,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-12 10:24:55,867 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-12 10:24:55,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:24:55,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1227219553, now seen corresponding path program 3 times [2022-07-12 10:24:55,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:24:55,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950317673] [2022-07-12 10:24:55,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:24:55,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:24:55,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:24:55,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:24:55,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:24:55,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950317673] [2022-07-12 10:24:55,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950317673] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:24:55,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:24:55,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 10:24:55,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502435957] [2022-07-12 10:24:55,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:24:55,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 10:24:55,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:24:55,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 10:24:55,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-07-12 10:24:55,960 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 232 [2022-07-12 10:24:55,961 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 552 transitions, 9385 flow. Second operand has 10 states, 10 states have (on average 193.6) internal successors, (1936), 10 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:24:55,961 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:24:55,961 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 232 [2022-07-12 10:24:55,961 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:25:03,165 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([590] L50-15-->L50-16: Formula: (= |v_thread2Thread1of1ForFork1_#t~ite6#1_3| |v_thread2Thread1of1ForFork1_#t~ite7#1_7|) InVars {thread2Thread1of1ForFork1_#t~ite6#1=|v_thread2Thread1of1ForFork1_#t~ite6#1_3|} OutVars{thread2Thread1of1ForFork1_#t~ite6#1=|v_thread2Thread1of1ForFork1_#t~ite6#1_3|, thread2Thread1of1ForFork1_#t~ite7#1=|v_thread2Thread1of1ForFork1_#t~ite7#1_7|} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_#t~ite7#1][126], [Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 231#(= ~result_7~0 0), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), Black: 516#(or (and (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (not (= (+ ~sort_label_is_null_5~0 (* (- 256) (div 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3#L50-16true, 645#true, 309#(= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)]) [2022-07-12 10:25:03,256 INFO L384 tUnfolder$Statistics]: this new event has 127 ancestors and is cut-off event [2022-07-12 10:25:03,256 INFO L387 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-07-12 10:25:03,257 INFO L387 tUnfolder$Statistics]: existing Event has 123 ancestors and is cut-off event [2022-07-12 10:25:03,257 INFO L387 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-07-12 10:25:03,335 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([590] L50-15-->L50-16: Formula: (= |v_thread2Thread1of1ForFork1_#t~ite6#1_3| |v_thread2Thread1of1ForFork1_#t~ite7#1_7|) InVars {thread2Thread1of1ForFork1_#t~ite6#1=|v_thread2Thread1of1ForFork1_#t~ite6#1_3|} OutVars{thread2Thread1of1ForFork1_#t~ite6#1=|v_thread2Thread1of1ForFork1_#t~ite6#1_3|, 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[2022-07-12 10:25:03,335 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-07-12 10:25:03,336 INFO L387 tUnfolder$Statistics]: existing Event has 124 ancestors and is cut-off event [2022-07-12 10:25:03,336 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-07-12 10:25:03,401 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([590] L50-15-->L50-16: Formula: (= |v_thread2Thread1of1ForFork1_#t~ite6#1_3| |v_thread2Thread1of1ForFork1_#t~ite7#1_7|) InVars {thread2Thread1of1ForFork1_#t~ite6#1=|v_thread2Thread1of1ForFork1_#t~ite6#1_3|} OutVars{thread2Thread1of1ForFork1_#t~ite6#1=|v_thread2Thread1of1ForFork1_#t~ite6#1_3|, thread2Thread1of1ForFork1_#t~ite7#1=|v_thread2Thread1of1ForFork1_#t~ite7#1_7|} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_#t~ite7#1][126], [Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 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tUnfolder$Statistics]: existing Event has 103 ancestors and is cut-off event [2022-07-12 10:25:03,466 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([590] L50-15-->L50-16: Formula: (= |v_thread2Thread1of1ForFork1_#t~ite6#1_3| |v_thread2Thread1of1ForFork1_#t~ite7#1_7|) InVars {thread2Thread1of1ForFork1_#t~ite6#1=|v_thread2Thread1of1ForFork1_#t~ite6#1_3|} OutVars{thread2Thread1of1ForFork1_#t~ite6#1=|v_thread2Thread1of1ForFork1_#t~ite6#1_3|, thread2Thread1of1ForFork1_#t~ite7#1=|v_thread2Thread1of1ForFork1_#t~ite7#1_7|} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_#t~ite7#1][126], [Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), Black: 516#(or (and (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (not (= (+ 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[2022-07-12 10:25:04,092 INFO L384 tUnfolder$Statistics]: this new event has 148 ancestors and is cut-off event [2022-07-12 10:25:04,092 INFO L387 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-07-12 10:25:04,092 INFO L387 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-07-12 10:25:04,093 INFO L387 tUnfolder$Statistics]: existing Event has 122 ancestors and is cut-off event [2022-07-12 10:25:04,105 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([635] L56-15-->L56-16: Formula: (= |v_thread3Thread1of1ForFork2_#t~ite10#1_3| |v_thread3Thread1of1ForFork2_#t~ite11#1_7|) InVars {thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite11#1=|v_thread3Thread1of1ForFork2_#t~ite11#1_7|, thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} AuxVars[] 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cut-off event [2022-07-12 10:25:04,105 INFO L387 tUnfolder$Statistics]: existing Event has 148 ancestors and is cut-off event [2022-07-12 10:25:04,105 INFO L387 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-07-12 10:25:04,105 INFO L387 tUnfolder$Statistics]: existing Event has 122 ancestors and is cut-off event [2022-07-12 10:25:04,110 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([635] L56-15-->L56-16: Formula: (= |v_thread3Thread1of1ForFork2_#t~ite10#1_3| |v_thread3Thread1of1ForFork2_#t~ite11#1_7|) InVars {thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite11#1=|v_thread3Thread1of1ForFork2_#t~ite11#1_7|, thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_#t~ite11#1][407], [Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= 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Event has 101 ancestors and is cut-off event [2022-07-12 10:25:04,122 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([635] L56-15-->L56-16: Formula: (= |v_thread3Thread1of1ForFork2_#t~ite10#1_3| |v_thread3Thread1of1ForFork2_#t~ite11#1_7|) InVars {thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite11#1=|v_thread3Thread1of1ForFork2_#t~ite11#1_7|, thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_#t~ite11#1][407], [Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 231#(= ~result_7~0 0), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), Black: 516#(or (and (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (not (= (+ ~sort_label_is_null_5~0 (* (- 256) (div 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~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)]) [2022-07-12 10:25:04,142 INFO L384 tUnfolder$Statistics]: this new event has 150 ancestors and is cut-off event [2022-07-12 10:25:04,142 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-07-12 10:25:04,142 INFO L387 tUnfolder$Statistics]: existing Event has 150 ancestors and is cut-off event [2022-07-12 10:25:04,142 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-07-12 10:25:04,142 INFO L387 tUnfolder$Statistics]: existing Event has 124 ancestors and is cut-off event [2022-07-12 10:25:04,163 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([635] L56-15-->L56-16: Formula: (= |v_thread3Thread1of1ForFork2_#t~ite10#1_3| |v_thread3Thread1of1ForFork2_#t~ite11#1_7|) InVars {thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} 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10:25:04,164 INFO L387 tUnfolder$Statistics]: existing Event has 103 ancestors and is cut-off event [2022-07-12 10:25:04,164 INFO L387 tUnfolder$Statistics]: existing Event has 103 ancestors and is cut-off event [2022-07-12 10:25:04,164 INFO L387 tUnfolder$Statistics]: existing Event has 125 ancestors and is cut-off event [2022-07-12 10:25:04,176 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([635] L56-15-->L56-16: Formula: (= |v_thread3Thread1of1ForFork2_#t~ite10#1_3| |v_thread3Thread1of1ForFork2_#t~ite11#1_7|) InVars {thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite11#1=|v_thread3Thread1of1ForFork2_#t~ite11#1_7|, thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_#t~ite11#1][407], [Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 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is cut-off event [2022-07-12 10:25:04,177 INFO L387 tUnfolder$Statistics]: existing Event has 151 ancestors and is cut-off event [2022-07-12 10:25:04,188 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([635] L56-15-->L56-16: Formula: (= |v_thread3Thread1of1ForFork2_#t~ite10#1_3| |v_thread3Thread1of1ForFork2_#t~ite11#1_7|) InVars {thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite11#1=|v_thread3Thread1of1ForFork2_#t~ite11#1_7|, thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_#t~ite11#1][407], [Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 231#(= ~result_7~0 0), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), Black: 516#(or (and (not 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256))) 0))), 645#true, 309#(= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)]) [2022-07-12 10:25:04,200 INFO L384 tUnfolder$Statistics]: this new event has 152 ancestors and is cut-off event [2022-07-12 10:25:04,200 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2022-07-12 10:25:04,200 INFO L387 tUnfolder$Statistics]: existing Event has 152 ancestors and is cut-off event [2022-07-12 10:25:04,200 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2022-07-12 10:25:04,200 INFO L387 tUnfolder$Statistics]: existing Event has 126 ancestors and is cut-off event [2022-07-12 10:25:04,312 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([635] L56-15-->L56-16: Formula: (= |v_thread3Thread1of1ForFork2_#t~ite10#1_3| |v_thread3Thread1of1ForFork2_#t~ite11#1_7|) InVars {thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} 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new event has 159 ancestors and is cut-off event [2022-07-12 10:25:04,313 INFO L387 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-07-12 10:25:04,313 INFO L387 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-07-12 10:25:04,313 INFO L387 tUnfolder$Statistics]: existing Event has 133 ancestors and is cut-off event [2022-07-12 10:25:04,319 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([635] L56-15-->L56-16: Formula: (= |v_thread3Thread1of1ForFork2_#t~ite10#1_3| |v_thread3Thread1of1ForFork2_#t~ite11#1_7|) InVars {thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite11#1=|v_thread3Thread1of1ForFork2_#t~ite11#1_7|, thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_#t~ite11#1][407], [Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 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|thread1Thread1of1ForFork0_#t~ite4#1| 1) 0)), Black: 621#(<= (+ ~result_6~0 1) 0), Black: 619#(<= (+ |thread1Thread1of1ForFork0_#t~ite3#1| 1) 0), Black: 388#(or (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256))))), Black: 395#(or (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)) (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 396#(or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0)), 318#(or (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0) (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 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|thread3Thread1of1ForFork2_#t~ite11#1| 1) 0) (<= (+ |thread2Thread1of1ForFork1_#t~ite7#1| 1) 0) (<= (+ ~result_7~0 1) 0)), Black: 692#(and (<= (+ ~result_8~0 1) 0) (<= (+ ~result_7~0 1) 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), Black: 650#(and (<= (+ |thread3Thread1of1ForFork2_#t~ite11#1| 1) 0) (<= (+ ~result_7~0 1) 0)), Black: 661#(and (<= (+ |thread3Thread1of1ForFork2_#t~ite11#1| 1) 0) (<= (+ |thread2Thread1of1ForFork1_#t~ite7#1| 1) 0) (<= (+ ~result_7~0 1) 0)), Black: 676#(and (<= (+ |thread2Thread1of1ForFork1_#t~ite8#1| 1) 0) (<= (+ |thread3Thread1of1ForFork2_#t~ite11#1| 1) 0) (<= (+ |thread2Thread1of1ForFork1_#t~ite7#1| 1) 0) (<= (+ ~result_8~0 1) 0) (<= (+ ~result_7~0 1) 0)), Black: 666#(and (<= (+ |thread3Thread1of1ForFork2_#t~ite11#1| 1) 0) (<= (+ |thread2Thread1of1ForFork1_#t~ite7#1| 1) 0) (<= (+ ~result_7~0 1) 0) (<= (+ |thread3Thread1of1ForFork2_#t~ite12#1| 1) 0)), Black: 648#(and (<= (+ |thread3Thread1of1ForFork2_#t~ite11#1| 1) 0) (<= (+ 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|thread3Thread1of1ForFork2_#t~ite11#1| 1) 0) (<= (+ |thread2Thread1of1ForFork1_#t~ite7#1| 1) 0) (<= (+ ~result_7~0 1) 0) (<= (+ |thread3Thread1of1ForFork2_#t~ite12#1| 1) 0)), 345#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)), Black: 455#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)))), Black: 458#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256))) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), Black: 466#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))), Black: 475#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)), 511#(and (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= (+ ~sort_label_is_null_5~0 (* (- 256) (div ~sort_label_is_null_5~0 256))) 0))) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0))), 645#true, 309#(= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)]) [2022-07-12 10:25:04,319 INFO L384 tUnfolder$Statistics]: this new event has 159 ancestors and is cut-off event [2022-07-12 10:25:04,319 INFO L387 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-07-12 10:25:04,319 INFO L387 tUnfolder$Statistics]: existing Event has 159 ancestors and is cut-off event [2022-07-12 10:25:04,319 INFO L387 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-07-12 10:25:04,319 INFO L387 tUnfolder$Statistics]: existing Event has 133 ancestors and is cut-off event [2022-07-12 10:25:04,354 INFO L129 PetriNetUnfolder]: 9024/30256 cut-off events. [2022-07-12 10:25:04,355 INFO L130 PetriNetUnfolder]: For 146944/152056 co-relation queries the response was YES. [2022-07-12 10:25:05,171 INFO L84 FinitePrefix]: Finished finitePrefix Result has 106082 conditions, 30256 events. 9024/30256 cut-off events. For 146944/152056 co-relation queries the response was YES. Maximal size of possible extension queue 2714. Compared 422308 event pairs, 4863 based on Foata normal form. 87/28074 useless extension candidates. Maximal degree in co-relation 105640. Up to 12562 conditions per place. [2022-07-12 10:25:05,291 INFO L132 encePairwiseOnDemand]: 219/232 looper letters, 71 selfloop transitions, 18 changer transitions 28/612 dead transitions. [2022-07-12 10:25:05,291 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 612 transitions, 10132 flow [2022-07-12 10:25:05,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-12 10:25:05,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-07-12 10:25:05,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3148 transitions. [2022-07-12 10:25:05,294 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8480603448275862 [2022-07-12 10:25:05,294 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3148 transitions. [2022-07-12 10:25:05,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3148 transitions. [2022-07-12 10:25:05,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:25:05,295 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3148 transitions. [2022-07-12 10:25:05,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 196.75) internal successors, (3148), 16 states have internal predecessors, (3148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:25:05,303 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 232.0) internal successors, (3944), 17 states have internal predecessors, (3944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:25:05,304 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 232.0) internal successors, (3944), 17 states have internal predecessors, (3944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:25:05,304 INFO L186 Difference]: Start difference. First operand has 428 places, 552 transitions, 9385 flow. Second operand 16 states and 3148 transitions. [2022-07-12 10:25:05,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 612 transitions, 10132 flow [2022-07-12 10:25:06,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 612 transitions, 10058 flow, removed 37 selfloop flow, removed 7 redundant places. [2022-07-12 10:25:06,841 INFO L242 Difference]: Finished difference. Result has 435 places, 562 transitions, 9552 flow [2022-07-12 10:25:06,842 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=9351, PETRI_DIFFERENCE_MINUEND_PLACES=409, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=552, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=539, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=9552, PETRI_PLACES=435, PETRI_TRANSITIONS=562} [2022-07-12 10:25:06,843 INFO L279 CegarLoopForPetriNet]: 211 programPoint places, 224 predicate places. [2022-07-12 10:25:06,843 INFO L495 AbstractCegarLoop]: Abstraction has has 435 places, 562 transitions, 9552 flow [2022-07-12 10:25:06,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 193.6) internal successors, (1936), 10 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:25:06,844 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:25:06,844 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:25:06,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-07-12 10:25:06,845 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-12 10:25:06,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:25:06,845 INFO L85 PathProgramCache]: Analyzing trace with hash 516449595, now seen corresponding path program 4 times [2022-07-12 10:25:06,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:25:06,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033472759] [2022-07-12 10:25:06,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:25:06,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:25:06,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:25:06,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:25:06,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:25:06,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033472759] [2022-07-12 10:25:06,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033472759] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:25:06,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:25:06,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 10:25:06,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098550360] [2022-07-12 10:25:06,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:25:06,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 10:25:06,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:25:06,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 10:25:06,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-07-12 10:25:06,947 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 232 [2022-07-12 10:25:06,948 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 435 places, 562 transitions, 9552 flow. Second operand has 10 states, 10 states have (on average 193.6) internal successors, (1936), 10 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:25:06,948 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:25:06,948 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 232 [2022-07-12 10:25:06,948 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:25:14,603 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([590] L50-15-->L50-16: Formula: (= |v_thread2Thread1of1ForFork1_#t~ite6#1_3| |v_thread2Thread1of1ForFork1_#t~ite7#1_7|) InVars {thread2Thread1of1ForFork1_#t~ite6#1=|v_thread2Thread1of1ForFork1_#t~ite6#1_3|} OutVars{thread2Thread1of1ForFork1_#t~ite6#1=|v_thread2Thread1of1ForFork1_#t~ite6#1_3|, thread2Thread1of1ForFork1_#t~ite7#1=|v_thread2Thread1of1ForFork1_#t~ite7#1_7|} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_#t~ite7#1][126], [Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 231#(= ~result_7~0 0), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), Black: 516#(or (and (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (not (= (+ ~sort_label_is_null_5~0 (* (- 256) (div 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tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-07-12 10:25:14,693 INFO L387 tUnfolder$Statistics]: existing Event has 123 ancestors and is cut-off event [2022-07-12 10:25:14,693 INFO L387 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-07-12 10:25:14,775 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([590] L50-15-->L50-16: Formula: (= |v_thread2Thread1of1ForFork1_#t~ite6#1_3| |v_thread2Thread1of1ForFork1_#t~ite7#1_7|) InVars {thread2Thread1of1ForFork1_#t~ite6#1=|v_thread2Thread1of1ForFork1_#t~ite6#1_3|} OutVars{thread2Thread1of1ForFork1_#t~ite6#1=|v_thread2Thread1of1ForFork1_#t~ite6#1_3|, thread2Thread1of1ForFork1_#t~ite7#1=|v_thread2Thread1of1ForFork1_#t~ite7#1_7|} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_#t~ite7#1][126], [Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 233#(and (= ~result_8~0 0) (= 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~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)]) [2022-07-12 10:25:14,838 INFO L384 tUnfolder$Statistics]: this new event has 129 ancestors and is cut-off event [2022-07-12 10:25:14,838 INFO L387 tUnfolder$Statistics]: existing Event has 103 ancestors and is cut-off event [2022-07-12 10:25:14,838 INFO L387 tUnfolder$Statistics]: existing Event has 103 ancestors and is cut-off event [2022-07-12 10:25:14,838 INFO L387 tUnfolder$Statistics]: existing Event has 125 ancestors and is cut-off event [2022-07-12 10:25:14,905 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([590] L50-15-->L50-16: Formula: (= |v_thread2Thread1of1ForFork1_#t~ite6#1_3| |v_thread2Thread1of1ForFork1_#t~ite7#1_7|) InVars {thread2Thread1of1ForFork1_#t~ite6#1=|v_thread2Thread1of1ForFork1_#t~ite6#1_3|} OutVars{thread2Thread1of1ForFork1_#t~ite6#1=|v_thread2Thread1of1ForFork1_#t~ite6#1_3|, thread2Thread1of1ForFork1_#t~ite7#1=|v_thread2Thread1of1ForFork1_#t~ite7#1_7|} 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INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2022-07-12 10:25:15,247 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([635] L56-15-->L56-16: Formula: (= |v_thread3Thread1of1ForFork2_#t~ite10#1_3| |v_thread3Thread1of1ForFork2_#t~ite11#1_7|) InVars {thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite11#1=|v_thread3Thread1of1ForFork2_#t~ite11#1_7|, thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_#t~ite11#1][406], [Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 231#(= ~result_7~0 0), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), Black: 516#(or (and (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)) (not (= (+ 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new event has 148 ancestors and is cut-off event [2022-07-12 10:25:15,259 INFO L387 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-07-12 10:25:15,259 INFO L387 tUnfolder$Statistics]: existing Event has 122 ancestors and is cut-off event [2022-07-12 10:25:15,259 INFO L387 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-07-12 10:25:15,259 INFO L387 tUnfolder$Statistics]: existing Event has 148 ancestors and is cut-off event [2022-07-12 10:25:15,264 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([635] L56-15-->L56-16: Formula: (= |v_thread3Thread1of1ForFork2_#t~ite10#1_3| |v_thread3Thread1of1ForFork2_#t~ite11#1_7|) InVars {thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite11#1=|v_thread3Thread1of1ForFork2_#t~ite11#1_7|, thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} 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101 ancestors and is cut-off event [2022-07-12 10:25:15,264 INFO L387 tUnfolder$Statistics]: existing Event has 123 ancestors and is cut-off event [2022-07-12 10:25:15,275 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([635] L56-15-->L56-16: Formula: (= |v_thread3Thread1of1ForFork2_#t~ite10#1_3| |v_thread3Thread1of1ForFork2_#t~ite11#1_7|) InVars {thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite11#1=|v_thread3Thread1of1ForFork2_#t~ite11#1_7|, thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_#t~ite11#1][406], [Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 231#(= ~result_7~0 0), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), Black: 516#(or (and (not (= (+ (* (- 256) (div 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L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-07-12 10:25:15,293 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-07-12 10:25:15,293 INFO L387 tUnfolder$Statistics]: existing Event has 150 ancestors and is cut-off event [2022-07-12 10:25:15,293 INFO L387 tUnfolder$Statistics]: existing Event has 124 ancestors and is cut-off event [2022-07-12 10:25:15,303 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([635] L56-15-->L56-16: Formula: (= |v_thread3Thread1of1ForFork2_#t~ite10#1_3| |v_thread3Thread1of1ForFork2_#t~ite11#1_7|) InVars {thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite11#1=|v_thread3Thread1of1ForFork2_#t~ite11#1_7|, thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_#t~ite11#1][406], [Black: 240#(and 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tUnfolder$Statistics]: existing Event has 125 ancestors and is cut-off event [2022-07-12 10:25:15,585 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([635] L56-15-->L56-16: Formula: (= |v_thread3Thread1of1ForFork2_#t~ite10#1_3| |v_thread3Thread1of1ForFork2_#t~ite11#1_7|) InVars {thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite11#1=|v_thread3Thread1of1ForFork2_#t~ite11#1_7|, thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_#t~ite11#1][406], [Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 231#(= ~result_7~0 0), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), Black: 516#(or (and (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) 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10:25:15,599 INFO L384 tUnfolder$Statistics]: this new event has 152 ancestors and is cut-off event [2022-07-12 10:25:15,599 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2022-07-12 10:25:15,599 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2022-07-12 10:25:15,599 INFO L387 tUnfolder$Statistics]: existing Event has 126 ancestors and is cut-off event [2022-07-12 10:25:15,611 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([635] L56-15-->L56-16: Formula: (= |v_thread3Thread1of1ForFork2_#t~ite10#1_3| |v_thread3Thread1of1ForFork2_#t~ite11#1_7|) InVars {thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite11#1=|v_thread3Thread1of1ForFork2_#t~ite11#1_7|, thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_#t~ite11#1][406], 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tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2022-07-12 10:25:15,612 INFO L387 tUnfolder$Statistics]: existing Event has 126 ancestors and is cut-off event [2022-07-12 10:25:15,717 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([635] L56-15-->L56-16: Formula: (= |v_thread3Thread1of1ForFork2_#t~ite10#1_3| |v_thread3Thread1of1ForFork2_#t~ite11#1_7|) InVars {thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite11#1=|v_thread3Thread1of1ForFork2_#t~ite11#1_7|, thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_#t~ite11#1][406], [Black: 240#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 231#(= ~result_7~0 0), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 237#(and (= ~result_8~0 0) (= 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(= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256))) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))), Black: 466#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0))), Black: 475#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) 256)))) (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)), 511#(and (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (not (= (+ ~sort_label_is_null_5~0 (* (- 256) (div ~sort_label_is_null_5~0 256))) 0))) (or (= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0) (= (+ ~sort_label_is_null_1~0 (* (div ~sort_label_is_null_1~0 256) (- 256))) 0))), 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|thread3Thread1of1ForFork2_#t~ite11#1| 1) 0) (<= (+ |thread2Thread1of1ForFork1_#t~ite7#1| 1) 0) (<= (+ ~result_8~0 1) 0) (<= (+ ~result_7~0 1) 0)), Black: 747#(and (= |ULTIMATE.start_assume_abort_if_not_~cond#1| 0) (<= (+ ~result_8~0 1) 0) (<= (+ ~result_7~0 1) 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), 645#true, Black: 724#(and (<= (+ |thread2Thread1of1ForFork1_#t~ite8#1| 1) 0) (<= (+ |thread2Thread1of1ForFork1_#t~ite7#1| 1) 0)), Black: 745#(and (<= (+ ~result_8~0 1) 0) (<= (+ ~result_7~0 1) 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), Black: 733#(and (<= (+ |thread2Thread1of1ForFork1_#t~ite8#1| 1) 0) (<= (+ |thread3Thread1of1ForFork2_#t~ite11#1| 1) 0) (<= (+ |thread2Thread1of1ForFork1_#t~ite7#1| 1) 0) (<= (+ ~result_8~0 1) 0)), Black: 731#(and (<= (+ |thread2Thread1of1ForFork1_#t~ite8#1| 1) 0) (<= (+ |thread3Thread1of1ForFork2_#t~ite11#1| 1) 0) (<= (+ |thread2Thread1of1ForFork1_#t~ite7#1| 1) 0) (<= (+ ~result_8~0 1) 0) (<= (+ |thread3Thread1of1ForFork2_#t~ite12#1| 1) 0)), 309#(= (+ (* (- 256) (div ~sort_label_is_null_3~0 256)) ~sort_label_is_null_3~0) 0)]) [2022-07-12 10:25:15,723 INFO L384 tUnfolder$Statistics]: this new event has 159 ancestors and is cut-off event [2022-07-12 10:25:15,723 INFO L387 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-07-12 10:25:15,723 INFO L387 tUnfolder$Statistics]: existing Event has 133 ancestors and is cut-off event [2022-07-12 10:25:15,723 INFO L387 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-07-12 10:25:15,723 INFO L387 tUnfolder$Statistics]: existing Event has 159 ancestors and is cut-off event [2022-07-12 10:25:15,754 INFO L129 PetriNetUnfolder]: 9385/31158 cut-off events. [2022-07-12 10:25:15,755 INFO L130 PetriNetUnfolder]: For 180508/185640 co-relation queries the response was YES. [2022-07-12 10:25:16,429 INFO L84 FinitePrefix]: Finished finitePrefix Result has 117574 conditions, 31158 events. 9385/31158 cut-off events. For 180508/185640 co-relation queries the response was YES. Maximal size of possible extension queue 2859. Compared 436464 event pairs, 4830 based on Foata normal form. 85/28945 useless extension candidates. Maximal degree in co-relation 117127. Up to 12619 conditions per place. [2022-07-12 10:25:16,529 INFO L132 encePairwiseOnDemand]: 219/232 looper letters, 86 selfloop transitions, 18 changer transitions 44/643 dead transitions. [2022-07-12 10:25:16,529 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 448 places, 643 transitions, 10648 flow [2022-07-12 10:25:16,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-12 10:25:16,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-07-12 10:25:16,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 4126 transitions. [2022-07-12 10:25:16,532 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.84688013136289 [2022-07-12 10:25:16,532 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 4126 transitions. [2022-07-12 10:25:16,532 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 4126 transitions. [2022-07-12 10:25:16,533 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:25:16,533 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 4126 transitions. [2022-07-12 10:25:16,538 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 196.47619047619048) internal successors, (4126), 21 states have internal predecessors, (4126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:25:16,542 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 232.0) internal successors, (5104), 22 states have internal predecessors, (5104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:25:16,543 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 232.0) internal successors, (5104), 22 states have internal predecessors, (5104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:25:16,543 INFO L186 Difference]: Start difference. First operand has 435 places, 562 transitions, 9552 flow. Second operand 21 states and 4126 transitions. [2022-07-12 10:25:16,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 448 places, 643 transitions, 10648 flow [2022-07-12 10:25:17,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 440 places, 643 transitions, 10491 flow, removed 60 selfloop flow, removed 8 redundant places. [2022-07-12 10:25:17,920 INFO L242 Difference]: Finished difference. Result has 456 places, 574 transitions, 9703 flow [2022-07-12 10:25:17,921 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=9453, PETRI_DIFFERENCE_MINUEND_PLACES=420, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=562, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=550, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=9703, PETRI_PLACES=456, PETRI_TRANSITIONS=574} [2022-07-12 10:25:17,921 INFO L279 CegarLoopForPetriNet]: 211 programPoint places, 245 predicate places. [2022-07-12 10:25:17,921 INFO L495 AbstractCegarLoop]: Abstraction has has 456 places, 574 transitions, 9703 flow [2022-07-12 10:25:17,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 193.6) internal successors, (1936), 10 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:25:17,922 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:25:17,922 INFO L200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:25:17,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-07-12 10:25:17,922 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-12 10:25:17,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:25:17,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1649420517, now seen corresponding path program 5 times [2022-07-12 10:25:17,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:25:17,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953925065] [2022-07-12 10:25:17,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:25:17,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:25:17,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:25:18,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:25:18,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:25:18,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953925065] [2022-07-12 10:25:18,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953925065] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:25:18,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:25:18,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 10:25:18,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046337082] [2022-07-12 10:25:18,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:25:18,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 10:25:18,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:25:18,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 10:25:18,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-07-12 10:25:18,011 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 232 [2022-07-12 10:25:18,012 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 574 transitions, 9703 flow. Second operand has 10 states, 10 states have (on average 193.6) internal successors, (1936), 10 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:25:18,012 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:25:18,012 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 232 [2022-07-12 10:25:18,012 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand