./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/fibonacci.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/fibonacci.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX --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 7f56768e1b40ef6b1b210f9cfb796e99d1f27ee48ed204adfea165b19bcc995e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 09:34:30,630 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 09:34:30,633 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 09:34:30,696 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 09:34:30,697 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 09:34:30,703 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 09:34:30,706 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 09:34:30,712 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 09:34:30,715 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 09:34:30,724 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 09:34:30,725 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 09:34:30,728 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 09:34:30,728 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 09:34:30,732 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 09:34:30,735 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 09:34:30,742 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 09:34:30,743 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 09:34:30,745 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 09:34:30,748 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 09:34:30,757 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 09:34:30,761 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 09:34:30,762 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 09:34:30,766 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 09:34:30,768 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 09:34:30,773 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 09:34:30,774 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 09:34:30,774 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 09:34:30,777 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 09:34:30,778 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 09:34:30,780 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 09:34:30,781 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 09:34:30,782 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 09:34:30,785 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 09:34:30,786 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 09:34:30,788 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 09:34:30,788 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 09:34:30,789 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 09:34:30,790 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 09:34:30,790 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 09:34:30,791 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 09:34:30,792 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 09:34:30,793 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-09 09:34:30,851 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 09:34:30,851 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 09:34:30,852 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 09:34:30,852 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 09:34:30,861 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 09:34:30,861 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 09:34:30,861 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 09:34:30,862 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 09:34:30,862 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 09:34:30,862 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 09:34:30,863 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 09:34:30,864 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 09:34:30,864 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 09:34:30,864 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 09:34:30,865 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 09:34:30,865 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 09:34:30,865 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 09:34:30,865 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 09:34:30,866 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 09:34:30,866 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 09:34:30,866 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 09:34:30,867 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 09:34:30,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 09:34:30,867 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 09:34:30,867 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 09:34:30,868 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 09:34:30,868 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 09:34:30,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 09:34:30,869 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 09:34:30,870 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 09:34:30,871 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 09:34:30,871 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 09:34:30,871 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f56768e1b40ef6b1b210f9cfb796e99d1f27ee48ed204adfea165b19bcc995e [2021-11-09 09:34:31,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 09:34:31,200 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 09:34:31,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 09:34:31,204 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 09:34:31,205 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 09:34:31,206 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/weaver/fibonacci.wvr.c [2021-11-09 09:34:31,284 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/data/e6ba3a783/8ee0fe67ef464ea0847350b936f3972b/FLAGddf8e6226 [2021-11-09 09:34:31,873 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 09:34:31,874 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/sv-benchmarks/c/weaver/fibonacci.wvr.c [2021-11-09 09:34:31,883 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/data/e6ba3a783/8ee0fe67ef464ea0847350b936f3972b/FLAGddf8e6226 [2021-11-09 09:34:32,238 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/data/e6ba3a783/8ee0fe67ef464ea0847350b936f3972b [2021-11-09 09:34:32,241 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 09:34:32,242 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 09:34:32,256 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 09:34:32,257 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 09:34:32,261 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 09:34:32,262 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:34:32" (1/1) ... [2021-11-09 09:34:32,264 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fd9732b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:34:32, skipping insertion in model container [2021-11-09 09:34:32,264 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:34:32" (1/1) ... [2021-11-09 09:34:32,273 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 09:34:32,299 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 09:34:32,564 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/sv-benchmarks/c/weaver/fibonacci.wvr.c[2330,2343] [2021-11-09 09:34:32,573 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:34:32,585 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 09:34:32,612 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/sv-benchmarks/c/weaver/fibonacci.wvr.c[2330,2343] [2021-11-09 09:34:32,617 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:34:32,638 INFO L208 MainTranslator]: Completed translation [2021-11-09 09:34:32,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:34:32 WrapperNode [2021-11-09 09:34:32,639 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 09:34:32,641 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 09:34:32,642 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 09:34:32,642 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 09:34:32,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:34:32" (1/1) ... [2021-11-09 09:34:32,675 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:34:32" (1/1) ... [2021-11-09 09:34:32,722 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 09:34:32,724 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 09:34:32,725 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 09:34:32,725 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 09:34:32,735 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:34:32" (1/1) ... [2021-11-09 09:34:32,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:34:32" (1/1) ... [2021-11-09 09:34:32,750 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:34:32" (1/1) ... [2021-11-09 09:34:32,755 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:34:32" (1/1) ... [2021-11-09 09:34:32,767 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:34:32" (1/1) ... [2021-11-09 09:34:32,778 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:34:32" (1/1) ... [2021-11-09 09:34:32,781 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:34:32" (1/1) ... [2021-11-09 09:34:32,795 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 09:34:32,796 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 09:34:32,797 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 09:34:32,797 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 09:34:32,798 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:34:32" (1/1) ... [2021-11-09 09:34:32,814 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 09:34:32,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:34:32,844 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 09:34:32,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 09:34:32,904 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-09 09:34:32,904 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-09 09:34:32,904 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-09 09:34:32,904 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-09 09:34:32,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 09:34:32,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 09:34:32,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-09 09:34:32,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 09:34:32,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 09:34:32,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-09 09:34:32,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-09 09:34:32,910 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-09 09:34:33,374 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 09:34:33,374 INFO L299 CfgBuilder]: Removed 34 assume(true) statements. [2021-11-09 09:34:33,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:34:33 BoogieIcfgContainer [2021-11-09 09:34:33,377 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 09:34:33,379 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 09:34:33,380 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 09:34:33,383 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 09:34:33,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 09:34:32" (1/3) ... [2021-11-09 09:34:33,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@359e33b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 09:34:33, skipping insertion in model container [2021-11-09 09:34:33,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:34:32" (2/3) ... [2021-11-09 09:34:33,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@359e33b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 09:34:33, skipping insertion in model container [2021-11-09 09:34:33,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:34:33" (3/3) ... [2021-11-09 09:34:33,401 INFO L111 eAbstractionObserver]: Analyzing ICFG fibonacci.wvr.c [2021-11-09 09:34:33,407 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-09 09:34:33,407 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 09:34:33,408 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-09 09:34:33,408 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-09 09:34:33,493 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,494 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,495 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,495 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,495 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,496 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,496 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,496 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,497 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,509 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,509 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,509 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,510 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,510 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,510 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,510 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,511 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,511 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,511 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,511 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,511 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,512 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,512 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,512 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,512 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,513 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,513 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,513 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,513 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,513 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,514 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,514 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,514 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,514 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,515 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,515 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,515 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,515 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,515 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,526 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,526 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,526 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,527 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,527 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,527 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,527 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,527 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,528 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,528 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,528 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,528 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,528 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,529 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,529 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,529 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,529 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,530 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,530 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,530 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,530 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,530 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,531 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,531 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,531 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,531 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,531 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,532 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,532 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,532 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,532 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,532 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,533 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,533 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,533 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,534 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,534 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,534 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,534 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,534 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,535 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,535 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,535 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,535 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,536 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,536 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,536 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,536 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,536 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,547 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,548 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,550 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,550 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,550 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,550 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,551 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,551 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,551 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,551 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,552 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,552 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,552 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,552 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,553 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,553 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,553 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,553 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,554 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,554 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,554 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,554 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,554 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,555 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,555 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,555 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,555 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,556 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,556 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,556 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,556 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,557 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,557 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,557 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,557 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,557 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,558 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,558 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,558 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,558 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,559 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,559 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,559 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,559 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,560 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,560 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,560 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,560 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,561 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,572 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,572 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,573 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,573 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,573 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,574 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,574 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,574 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,574 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,575 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,575 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,575 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,576 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,576 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,576 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,576 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,576 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,577 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,577 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,577 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,577 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,577 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,578 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,590 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,590 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,590 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,591 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,591 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,591 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,591 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,592 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,592 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,592 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,592 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,593 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,593 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,593 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,593 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,594 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,594 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,594 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,594 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,595 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,595 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,595 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,595 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,595 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,596 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,596 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,596 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,596 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,596 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,597 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,597 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,597 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,597 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,598 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,598 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,598 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,598 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,598 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,599 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,599 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,599 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,599 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,600 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,600 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,600 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,600 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,601 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,602 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,603 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,603 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,603 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,603 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,604 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,604 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,604 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,605 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,606 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,612 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,613 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,628 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,628 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,628 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,628 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,629 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,629 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,629 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,629 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,630 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,630 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,630 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,630 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,631 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,631 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,631 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,631 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,631 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,632 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,632 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,632 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,632 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,633 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,633 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,633 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,633 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,633 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,634 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,634 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,634 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,634 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,635 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,635 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,635 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,635 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,635 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,636 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,636 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,636 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,636 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,637 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,639 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,639 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,640 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,640 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,640 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,640 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,641 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,641 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,641 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,641 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,642 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,642 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,642 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,642 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,642 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,643 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,643 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,643 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,643 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,644 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,644 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,644 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,644 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,644 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,645 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,645 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,645 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,645 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,645 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,646 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,646 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,646 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,646 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,647 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,647 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,647 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,647 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,647 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,648 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,648 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,648 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,648 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,648 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,649 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,649 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,649 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,649 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,650 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,650 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,650 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,650 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,650 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,651 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,651 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,651 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,651 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,651 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,652 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,652 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,652 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,652 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,665 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,665 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,666 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,667 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,667 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,667 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,667 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,668 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,668 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,668 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,668 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,670 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,670 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,670 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,670 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,670 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,671 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,671 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,671 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,679 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,679 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,680 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,680 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,680 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,680 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,680 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,680 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,681 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,681 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,681 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,681 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,682 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,682 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,682 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,682 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,689 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,689 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,690 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:34:33,715 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-11-09 09:34:33,810 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 09:34:33,824 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-09 09:34:33,824 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-09 09:34:33,862 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 189 places, 198 transitions, 412 flow [2021-11-09 09:34:34,036 INFO L129 PetriNetUnfolder]: 16/196 cut-off events. [2021-11-09 09:34:34,038 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-11-09 09:34:34,048 INFO L84 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 196 events. 16/196 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 348 event pairs, 0 based on Foata normal form. 0/179 useless extension candidates. Maximal degree in co-relation 129. Up to 2 conditions per place. [2021-11-09 09:34:34,048 INFO L82 GeneralOperation]: Start removeDead. Operand has 189 places, 198 transitions, 412 flow [2021-11-09 09:34:34,067 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 179 places, 188 transitions, 388 flow [2021-11-09 09:34:34,145 INFO L129 PetriNetUnfolder]: 13/167 cut-off events. [2021-11-09 09:34:34,150 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-11-09 09:34:34,151 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:34:34,152 INFO L254 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] [2021-11-09 09:34:34,152 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:34:34,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:34,163 INFO L85 PathProgramCache]: Analyzing trace with hash -613467012, now seen corresponding path program 1 times [2021-11-09 09:34:34,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:34,175 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095711147] [2021-11-09 09:34:34,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:34,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:34,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:34,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:34,448 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:34,448 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095711147] [2021-11-09 09:34:34,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095711147] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:34:34,449 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:34:34,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 09:34:34,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067897692] [2021-11-09 09:34:34,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-09 09:34:34,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:34,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-09 09:34:34,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 09:34:34,484 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 198 [2021-11-09 09:34:34,489 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 188 transitions, 388 flow. Second operand has 2 states, 2 states have (on average 186.0) internal successors, (372), 2 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:34,489 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:34:34,489 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 198 [2021-11-09 09:34:34,491 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:34:34,535 INFO L129 PetriNetUnfolder]: 4/176 cut-off events. [2021-11-09 09:34:34,536 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-11-09 09:34:34,538 INFO L84 FinitePrefix]: Finished finitePrefix Result has 186 conditions, 176 events. 4/176 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 294 event pairs, 0 based on Foata normal form. 12/174 useless extension candidates. Maximal degree in co-relation 182. Up to 2 conditions per place. [2021-11-09 09:34:34,540 INFO L132 encePairwiseOnDemand]: 186/198 looper letters, 0 selfloop transitions, 0 changer transitions 2/176 dead transitions. [2021-11-09 09:34:34,540 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 176 transitions, 364 flow [2021-11-09 09:34:34,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 09:34:34,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-11-09 09:34:34,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 382 transitions. [2021-11-09 09:34:34,555 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9646464646464646 [2021-11-09 09:34:34,556 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 382 transitions. [2021-11-09 09:34:34,557 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 382 transitions. [2021-11-09 09:34:34,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:34:34,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 382 transitions. [2021-11-09 09:34:34,566 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 191.0) internal successors, (382), 2 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:34,573 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 198.0) internal successors, (594), 3 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:34,574 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 198.0) internal successors, (594), 3 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:34,576 INFO L186 Difference]: Start difference. First operand has 179 places, 188 transitions, 388 flow. Second operand 2 states and 382 transitions. [2021-11-09 09:34:34,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 176 transitions, 364 flow [2021-11-09 09:34:34,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 176 transitions, 356 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-11-09 09:34:34,586 INFO L242 Difference]: Finished difference. Result has 176 places, 174 transitions, 352 flow [2021-11-09 09:34:34,589 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=352, PETRI_PLACES=176, PETRI_TRANSITIONS=174} [2021-11-09 09:34:34,590 INFO L334 CegarLoopForPetriNet]: 179 programPoint places, -3 predicate places. [2021-11-09 09:34:34,590 INFO L470 AbstractCegarLoop]: Abstraction has has 176 places, 174 transitions, 352 flow [2021-11-09 09:34:34,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 186.0) internal successors, (372), 2 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:34,591 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:34:34,591 INFO L254 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] [2021-11-09 09:34:34,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-09 09:34:34,592 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:34:34,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:34,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1101593036, now seen corresponding path program 1 times [2021-11-09 09:34:34,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:34,593 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938990190] [2021-11-09 09:34:34,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:34,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:34,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:34,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:34,828 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:34,828 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938990190] [2021-11-09 09:34:34,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938990190] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:34:34,828 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:34:34,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-09 09:34:34,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047840784] [2021-11-09 09:34:34,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-09 09:34:34,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:34,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-09 09:34:34,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-09 09:34:34,837 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 198 [2021-11-09 09:34:34,840 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 174 transitions, 352 flow. Second operand has 8 states, 8 states have (on average 163.5) internal successors, (1308), 8 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:34,840 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:34:34,840 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 198 [2021-11-09 09:34:34,840 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:34:35,154 INFO L129 PetriNetUnfolder]: 34/288 cut-off events. [2021-11-09 09:34:35,154 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-09 09:34:35,157 INFO L84 FinitePrefix]: Finished finitePrefix Result has 391 conditions, 288 events. 34/288 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1113 event pairs, 12 based on Foata normal form. 1/275 useless extension candidates. Maximal degree in co-relation 388. Up to 47 conditions per place. [2021-11-09 09:34:35,160 INFO L132 encePairwiseOnDemand]: 186/198 looper letters, 35 selfloop transitions, 6 changer transitions 12/205 dead transitions. [2021-11-09 09:34:35,160 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 205 transitions, 523 flow [2021-11-09 09:34:35,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-09 09:34:35,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-11-09 09:34:35,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2147 transitions. [2021-11-09 09:34:35,174 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8341103341103341 [2021-11-09 09:34:35,174 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2147 transitions. [2021-11-09 09:34:35,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2147 transitions. [2021-11-09 09:34:35,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:34:35,176 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2147 transitions. [2021-11-09 09:34:35,185 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 165.15384615384616) internal successors, (2147), 13 states have internal predecessors, (2147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:35,196 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 198.0) internal successors, (2772), 14 states have internal predecessors, (2772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:35,199 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 198.0) internal successors, (2772), 14 states have internal predecessors, (2772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:35,199 INFO L186 Difference]: Start difference. First operand has 176 places, 174 transitions, 352 flow. Second operand 13 states and 2147 transitions. [2021-11-09 09:34:35,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 205 transitions, 523 flow [2021-11-09 09:34:35,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 205 transitions, 523 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-09 09:34:35,208 INFO L242 Difference]: Finished difference. Result has 197 places, 176 transitions, 405 flow [2021-11-09 09:34:35,213 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=405, PETRI_PLACES=197, PETRI_TRANSITIONS=176} [2021-11-09 09:34:35,214 INFO L334 CegarLoopForPetriNet]: 179 programPoint places, 18 predicate places. [2021-11-09 09:34:35,215 INFO L470 AbstractCegarLoop]: Abstraction has has 197 places, 176 transitions, 405 flow [2021-11-09 09:34:35,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 163.5) internal successors, (1308), 8 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:35,216 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:34:35,217 INFO L254 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] [2021-11-09 09:34:35,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-09 09:34:35,217 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:34:35,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:35,221 INFO L85 PathProgramCache]: Analyzing trace with hash -63173174, now seen corresponding path program 2 times [2021-11-09 09:34:35,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:35,222 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973532624] [2021-11-09 09:34:35,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:35,222 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:35,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:35,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:35,469 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:35,469 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973532624] [2021-11-09 09:34:35,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973532624] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:34:35,471 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:34:35,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-09 09:34:35,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157184753] [2021-11-09 09:34:35,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-09 09:34:35,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:35,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-09 09:34:35,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-09 09:34:35,479 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 198 [2021-11-09 09:34:35,482 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 176 transitions, 405 flow. Second operand has 8 states, 8 states have (on average 163.5) internal successors, (1308), 8 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:35,482 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:34:35,482 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 198 [2021-11-09 09:34:35,482 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:34:35,750 INFO L129 PetriNetUnfolder]: 43/355 cut-off events. [2021-11-09 09:34:35,750 INFO L130 PetriNetUnfolder]: For 181/181 co-relation queries the response was YES. [2021-11-09 09:34:35,753 INFO L84 FinitePrefix]: Finished finitePrefix Result has 687 conditions, 355 events. 43/355 cut-off events. For 181/181 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1653 event pairs, 24 based on Foata normal form. 1/340 useless extension candidates. Maximal degree in co-relation 672. Up to 74 conditions per place. [2021-11-09 09:34:35,756 INFO L132 encePairwiseOnDemand]: 187/198 looper letters, 41 selfloop transitions, 5 changer transitions 12/210 dead transitions. [2021-11-09 09:34:35,756 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 210 transitions, 698 flow [2021-11-09 09:34:35,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-09 09:34:35,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-11-09 09:34:35,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2144 transitions. [2021-11-09 09:34:35,766 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8329448329448329 [2021-11-09 09:34:35,766 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2144 transitions. [2021-11-09 09:34:35,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2144 transitions. [2021-11-09 09:34:35,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:34:35,769 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2144 transitions. [2021-11-09 09:34:35,777 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 164.92307692307693) internal successors, (2144), 13 states have internal predecessors, (2144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:35,786 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 198.0) internal successors, (2772), 14 states have internal predecessors, (2772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:35,788 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 198.0) internal successors, (2772), 14 states have internal predecessors, (2772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:35,789 INFO L186 Difference]: Start difference. First operand has 197 places, 176 transitions, 405 flow. Second operand 13 states and 2144 transitions. [2021-11-09 09:34:35,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 210 transitions, 698 flow [2021-11-09 09:34:35,797 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 210 transitions, 642 flow, removed 19 selfloop flow, removed 9 redundant places. [2021-11-09 09:34:35,805 INFO L242 Difference]: Finished difference. Result has 204 places, 178 transitions, 436 flow [2021-11-09 09:34:35,806 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=383, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=436, PETRI_PLACES=204, PETRI_TRANSITIONS=178} [2021-11-09 09:34:35,807 INFO L334 CegarLoopForPetriNet]: 179 programPoint places, 25 predicate places. [2021-11-09 09:34:35,807 INFO L470 AbstractCegarLoop]: Abstraction has has 204 places, 178 transitions, 436 flow [2021-11-09 09:34:35,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 163.5) internal successors, (1308), 8 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:35,808 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:34:35,809 INFO L254 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] [2021-11-09 09:34:35,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-09 09:34:35,809 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:34:35,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:35,811 INFO L85 PathProgramCache]: Analyzing trace with hash -305950022, now seen corresponding path program 1 times [2021-11-09 09:34:35,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:35,811 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606854745] [2021-11-09 09:34:35,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:35,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:35,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:36,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:36,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:36,018 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606854745] [2021-11-09 09:34:36,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606854745] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:34:36,019 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:34:36,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-09 09:34:36,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588584605] [2021-11-09 09:34:36,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 09:34:36,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:36,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 09:34:36,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-09 09:34:36,032 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 198 [2021-11-09 09:34:36,034 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 178 transitions, 436 flow. Second operand has 6 states, 6 states have (on average 163.33333333333334) internal successors, (980), 6 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:36,035 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:34:36,035 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 198 [2021-11-09 09:34:36,035 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:34:36,354 INFO L129 PetriNetUnfolder]: 87/867 cut-off events. [2021-11-09 09:34:36,354 INFO L130 PetriNetUnfolder]: For 342/363 co-relation queries the response was YES. [2021-11-09 09:34:36,358 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1367 conditions, 867 events. 87/867 cut-off events. For 342/363 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 5345 event pairs, 22 based on Foata normal form. 7/769 useless extension candidates. Maximal degree in co-relation 1347. Up to 91 conditions per place. [2021-11-09 09:34:36,363 INFO L132 encePairwiseOnDemand]: 189/198 looper letters, 43 selfloop transitions, 11 changer transitions 0/210 dead transitions. [2021-11-09 09:34:36,363 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 210 transitions, 626 flow [2021-11-09 09:34:36,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-09 09:34:36,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-11-09 09:34:36,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1182 transitions. [2021-11-09 09:34:36,368 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8528138528138528 [2021-11-09 09:34:36,368 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1182 transitions. [2021-11-09 09:34:36,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1182 transitions. [2021-11-09 09:34:36,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:34:36,370 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1182 transitions. [2021-11-09 09:34:36,374 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 168.85714285714286) internal successors, (1182), 7 states have internal predecessors, (1182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:36,378 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 198.0) internal successors, (1584), 8 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:36,380 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 198.0) internal successors, (1584), 8 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:36,380 INFO L186 Difference]: Start difference. First operand has 204 places, 178 transitions, 436 flow. Second operand 7 states and 1182 transitions. [2021-11-09 09:34:36,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 210 transitions, 626 flow [2021-11-09 09:34:36,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 210 transitions, 590 flow, removed 15 selfloop flow, removed 8 redundant places. [2021-11-09 09:34:36,394 INFO L242 Difference]: Finished difference. Result has 197 places, 186 transitions, 483 flow [2021-11-09 09:34:36,394 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=483, PETRI_PLACES=197, PETRI_TRANSITIONS=186} [2021-11-09 09:34:36,395 INFO L334 CegarLoopForPetriNet]: 179 programPoint places, 18 predicate places. [2021-11-09 09:34:36,395 INFO L470 AbstractCegarLoop]: Abstraction has has 197 places, 186 transitions, 483 flow [2021-11-09 09:34:36,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 163.33333333333334) internal successors, (980), 6 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:36,396 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:34:36,396 INFO L254 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] [2021-11-09 09:34:36,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-09 09:34:36,397 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:34:36,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:36,398 INFO L85 PathProgramCache]: Analyzing trace with hash -634271658, now seen corresponding path program 3 times [2021-11-09 09:34:36,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:36,398 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246017154] [2021-11-09 09:34:36,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:36,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:36,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:36,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:36,566 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:36,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246017154] [2021-11-09 09:34:36,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246017154] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:34:36,568 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:34:36,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-09 09:34:36,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826084157] [2021-11-09 09:34:36,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-09 09:34:36,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:36,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-09 09:34:36,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-09 09:34:36,573 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 198 [2021-11-09 09:34:36,575 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 186 transitions, 483 flow. Second operand has 8 states, 8 states have (on average 163.5) internal successors, (1308), 8 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:36,576 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:34:36,576 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 198 [2021-11-09 09:34:36,576 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:34:37,009 INFO L129 PetriNetUnfolder]: 130/1206 cut-off events. [2021-11-09 09:34:37,009 INFO L130 PetriNetUnfolder]: For 722/740 co-relation queries the response was YES. [2021-11-09 09:34:37,017 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2135 conditions, 1206 events. 130/1206 cut-off events. For 722/740 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 7510 event pairs, 60 based on Foata normal form. 2/1115 useless extension candidates. Maximal degree in co-relation 2118. Up to 212 conditions per place. [2021-11-09 09:34:37,026 INFO L132 encePairwiseOnDemand]: 189/198 looper letters, 30 selfloop transitions, 8 changer transitions 9/207 dead transitions. [2021-11-09 09:34:37,026 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 207 transitions, 708 flow [2021-11-09 09:34:37,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-09 09:34:37,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-09 09:34:37,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1815 transitions. [2021-11-09 09:34:37,034 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2021-11-09 09:34:37,034 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1815 transitions. [2021-11-09 09:34:37,034 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1815 transitions. [2021-11-09 09:34:37,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:34:37,036 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1815 transitions. [2021-11-09 09:34:37,043 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 165.0) internal successors, (1815), 11 states have internal predecessors, (1815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:37,053 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 198.0) internal successors, (2376), 12 states have internal predecessors, (2376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:37,055 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 198.0) internal successors, (2376), 12 states have internal predecessors, (2376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:37,055 INFO L186 Difference]: Start difference. First operand has 197 places, 186 transitions, 483 flow. Second operand 11 states and 1815 transitions. [2021-11-09 09:34:37,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 207 transitions, 708 flow [2021-11-09 09:34:37,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 207 transitions, 704 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-09 09:34:37,069 INFO L242 Difference]: Finished difference. Result has 213 places, 192 transitions, 568 flow [2021-11-09 09:34:37,069 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=479, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=568, PETRI_PLACES=213, PETRI_TRANSITIONS=192} [2021-11-09 09:34:37,070 INFO L334 CegarLoopForPetriNet]: 179 programPoint places, 34 predicate places. [2021-11-09 09:34:37,070 INFO L470 AbstractCegarLoop]: Abstraction has has 213 places, 192 transitions, 568 flow [2021-11-09 09:34:37,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 163.5) internal successors, (1308), 8 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:37,071 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:34:37,071 INFO L254 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] [2021-11-09 09:34:37,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-09 09:34:37,072 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:34:37,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:37,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1557150266, now seen corresponding path program 1 times [2021-11-09 09:34:37,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:37,073 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59917485] [2021-11-09 09:34:37,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:37,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:37,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:37,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:37,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:37,228 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59917485] [2021-11-09 09:34:37,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59917485] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:34:37,228 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:34:37,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-09 09:34:37,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762634886] [2021-11-09 09:34:37,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 09:34:37,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:37,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 09:34:37,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-09 09:34:37,232 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 198 [2021-11-09 09:34:37,234 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 192 transitions, 568 flow. Second operand has 6 states, 6 states have (on average 163.33333333333334) internal successors, (980), 6 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:37,234 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:34:37,234 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 198 [2021-11-09 09:34:37,234 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:34:37,626 INFO L129 PetriNetUnfolder]: 98/964 cut-off events. [2021-11-09 09:34:37,626 INFO L130 PetriNetUnfolder]: For 840/886 co-relation queries the response was YES. [2021-11-09 09:34:37,632 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1814 conditions, 964 events. 98/964 cut-off events. For 840/886 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 6274 event pairs, 29 based on Foata normal form. 11/896 useless extension candidates. Maximal degree in co-relation 1788. Up to 93 conditions per place. [2021-11-09 09:34:37,637 INFO L132 encePairwiseOnDemand]: 186/198 looper letters, 43 selfloop transitions, 16 changer transitions 0/221 dead transitions. [2021-11-09 09:34:37,637 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 221 transitions, 790 flow [2021-11-09 09:34:37,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-09 09:34:37,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-11-09 09:34:37,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1182 transitions. [2021-11-09 09:34:37,642 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8528138528138528 [2021-11-09 09:34:37,642 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1182 transitions. [2021-11-09 09:34:37,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1182 transitions. [2021-11-09 09:34:37,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:34:37,644 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1182 transitions. [2021-11-09 09:34:37,648 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 168.85714285714286) internal successors, (1182), 7 states have internal predecessors, (1182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:37,652 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 198.0) internal successors, (1584), 8 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:37,653 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 198.0) internal successors, (1584), 8 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:37,653 INFO L186 Difference]: Start difference. First operand has 213 places, 192 transitions, 568 flow. Second operand 7 states and 1182 transitions. [2021-11-09 09:34:37,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 221 transitions, 790 flow [2021-11-09 09:34:37,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 221 transitions, 747 flow, removed 19 selfloop flow, removed 5 redundant places. [2021-11-09 09:34:37,666 INFO L242 Difference]: Finished difference. Result has 212 places, 198 transitions, 628 flow [2021-11-09 09:34:37,667 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=543, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=628, PETRI_PLACES=212, PETRI_TRANSITIONS=198} [2021-11-09 09:34:37,667 INFO L334 CegarLoopForPetriNet]: 179 programPoint places, 33 predicate places. [2021-11-09 09:34:37,667 INFO L470 AbstractCegarLoop]: Abstraction has has 212 places, 198 transitions, 628 flow [2021-11-09 09:34:37,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 163.33333333333334) internal successors, (980), 6 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:37,668 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:34:37,669 INFO L254 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] [2021-11-09 09:34:37,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-09 09:34:37,669 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:34:37,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:37,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1188117350, now seen corresponding path program 2 times [2021-11-09 09:34:37,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:37,670 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868736358] [2021-11-09 09:34:37,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:37,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:37,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:37,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:37,748 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:37,748 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868736358] [2021-11-09 09:34:37,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868736358] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:34:37,748 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:34:37,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-09 09:34:37,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012382447] [2021-11-09 09:34:37,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 09:34:37,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:37,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 09:34:37,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-09 09:34:37,752 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 198 [2021-11-09 09:34:37,754 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 198 transitions, 628 flow. Second operand has 6 states, 6 states have (on average 163.33333333333334) internal successors, (980), 6 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:37,754 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:34:37,754 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 198 [2021-11-09 09:34:37,754 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:34:38,046 INFO L129 PetriNetUnfolder]: 95/938 cut-off events. [2021-11-09 09:34:38,046 INFO L130 PetriNetUnfolder]: For 811/871 co-relation queries the response was YES. [2021-11-09 09:34:38,053 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1732 conditions, 938 events. 95/938 cut-off events. For 811/871 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 5981 event pairs, 26 based on Foata normal form. 17/877 useless extension candidates. Maximal degree in co-relation 1707. Up to 95 conditions per place. [2021-11-09 09:34:38,060 INFO L132 encePairwiseOnDemand]: 189/198 looper letters, 45 selfloop transitions, 14 changer transitions 0/221 dead transitions. [2021-11-09 09:34:38,061 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 221 transitions, 810 flow [2021-11-09 09:34:38,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-09 09:34:38,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-11-09 09:34:38,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1181 transitions. [2021-11-09 09:34:38,067 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8520923520923521 [2021-11-09 09:34:38,067 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1181 transitions. [2021-11-09 09:34:38,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1181 transitions. [2021-11-09 09:34:38,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:34:38,069 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1181 transitions. [2021-11-09 09:34:38,073 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 168.71428571428572) internal successors, (1181), 7 states have internal predecessors, (1181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:38,078 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 198.0) internal successors, (1584), 8 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:38,079 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 198.0) internal successors, (1584), 8 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:38,079 INFO L186 Difference]: Start difference. First operand has 212 places, 198 transitions, 628 flow. Second operand 7 states and 1181 transitions. [2021-11-09 09:34:38,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 221 transitions, 810 flow [2021-11-09 09:34:38,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 221 transitions, 804 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-11-09 09:34:38,094 INFO L242 Difference]: Finished difference. Result has 219 places, 200 transitions, 686 flow [2021-11-09 09:34:38,095 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=622, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=686, PETRI_PLACES=219, PETRI_TRANSITIONS=200} [2021-11-09 09:34:38,095 INFO L334 CegarLoopForPetriNet]: 179 programPoint places, 40 predicate places. [2021-11-09 09:34:38,095 INFO L470 AbstractCegarLoop]: Abstraction has has 219 places, 200 transitions, 686 flow [2021-11-09 09:34:38,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 163.33333333333334) internal successors, (980), 6 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:38,096 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:34:38,096 INFO L254 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] [2021-11-09 09:34:38,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-09 09:34:38,097 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:34:38,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:38,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1950782068, now seen corresponding path program 2 times [2021-11-09 09:34:38,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:38,098 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107908131] [2021-11-09 09:34:38,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:38,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:38,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:38,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:38,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:38,180 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107908131] [2021-11-09 09:34:38,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107908131] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:34:38,181 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:34:38,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-09 09:34:38,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282442839] [2021-11-09 09:34:38,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 09:34:38,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:38,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 09:34:38,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-09 09:34:38,185 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 198 [2021-11-09 09:34:38,187 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 200 transitions, 686 flow. Second operand has 6 states, 6 states have (on average 163.33333333333334) internal successors, (980), 6 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:38,187 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:34:38,187 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 198 [2021-11-09 09:34:38,188 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:34:38,434 INFO L129 PetriNetUnfolder]: 92/914 cut-off events. [2021-11-09 09:34:38,434 INFO L130 PetriNetUnfolder]: For 1002/1058 co-relation queries the response was YES. [2021-11-09 09:34:38,441 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1733 conditions, 914 events. 92/914 cut-off events. For 1002/1058 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 5753 event pairs, 23 based on Foata normal form. 16/856 useless extension candidates. Maximal degree in co-relation 1705. Up to 93 conditions per place. [2021-11-09 09:34:38,447 INFO L132 encePairwiseOnDemand]: 187/198 looper letters, 44 selfloop transitions, 16 changer transitions 0/222 dead transitions. [2021-11-09 09:34:38,447 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 222 transitions, 866 flow [2021-11-09 09:34:38,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-09 09:34:38,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-11-09 09:34:38,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1181 transitions. [2021-11-09 09:34:38,452 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8520923520923521 [2021-11-09 09:34:38,452 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1181 transitions. [2021-11-09 09:34:38,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1181 transitions. [2021-11-09 09:34:38,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:34:38,454 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1181 transitions. [2021-11-09 09:34:38,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 168.71428571428572) internal successors, (1181), 7 states have internal predecessors, (1181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:38,462 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 198.0) internal successors, (1584), 8 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:38,463 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 198.0) internal successors, (1584), 8 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:38,463 INFO L186 Difference]: Start difference. First operand has 219 places, 200 transitions, 686 flow. Second operand 7 states and 1181 transitions. [2021-11-09 09:34:38,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 222 transitions, 866 flow [2021-11-09 09:34:38,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 222 transitions, 851 flow, removed 2 selfloop flow, removed 3 redundant places. [2021-11-09 09:34:38,477 INFO L242 Difference]: Finished difference. Result has 225 places, 202 transitions, 741 flow [2021-11-09 09:34:38,477 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=671, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=741, PETRI_PLACES=225, PETRI_TRANSITIONS=202} [2021-11-09 09:34:38,478 INFO L334 CegarLoopForPetriNet]: 179 programPoint places, 46 predicate places. [2021-11-09 09:34:38,478 INFO L470 AbstractCegarLoop]: Abstraction has has 225 places, 202 transitions, 741 flow [2021-11-09 09:34:38,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 163.33333333333334) internal successors, (980), 6 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:38,479 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:34:38,479 INFO L254 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] [2021-11-09 09:34:38,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-09 09:34:38,480 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:34:38,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:38,480 INFO L85 PathProgramCache]: Analyzing trace with hash -73612770, now seen corresponding path program 4 times [2021-11-09 09:34:38,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:38,481 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104715464] [2021-11-09 09:34:38,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:38,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:38,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:38,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:38,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:38,582 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104715464] [2021-11-09 09:34:38,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104715464] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:34:38,583 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:34:38,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-09 09:34:38,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615680423] [2021-11-09 09:34:38,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-09 09:34:38,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:38,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-09 09:34:38,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-09 09:34:38,587 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 198 [2021-11-09 09:34:38,589 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 202 transitions, 741 flow. Second operand has 8 states, 8 states have (on average 163.5) internal successors, (1308), 8 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:38,589 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:34:38,590 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 198 [2021-11-09 09:34:38,590 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:34:38,942 INFO L129 PetriNetUnfolder]: 113/1121 cut-off events. [2021-11-09 09:34:38,942 INFO L130 PetriNetUnfolder]: For 1254/1289 co-relation queries the response was YES. [2021-11-09 09:34:38,952 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2269 conditions, 1121 events. 113/1121 cut-off events. For 1254/1289 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 7056 event pairs, 50 based on Foata normal form. 2/1044 useless extension candidates. Maximal degree in co-relation 2238. Up to 193 conditions per place. [2021-11-09 09:34:38,959 INFO L132 encePairwiseOnDemand]: 189/198 looper letters, 34 selfloop transitions, 10 changer transitions 9/223 dead transitions. [2021-11-09 09:34:38,959 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 223 transitions, 1014 flow [2021-11-09 09:34:38,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-09 09:34:38,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-11-09 09:34:38,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1977 transitions. [2021-11-09 09:34:38,967 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8320707070707071 [2021-11-09 09:34:38,967 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1977 transitions. [2021-11-09 09:34:38,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1977 transitions. [2021-11-09 09:34:38,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:34:38,969 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1977 transitions. [2021-11-09 09:34:38,976 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 164.75) internal successors, (1977), 12 states have internal predecessors, (1977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:38,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 198.0) internal successors, (2574), 13 states have internal predecessors, (2574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:38,985 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 198.0) internal successors, (2574), 13 states have internal predecessors, (2574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:38,985 INFO L186 Difference]: Start difference. First operand has 225 places, 202 transitions, 741 flow. Second operand 12 states and 1977 transitions. [2021-11-09 09:34:38,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 223 transitions, 1014 flow [2021-11-09 09:34:38,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 223 transitions, 1001 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-11-09 09:34:39,004 INFO L242 Difference]: Finished difference. Result has 240 places, 208 transitions, 835 flow [2021-11-09 09:34:39,005 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=728, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=835, PETRI_PLACES=240, PETRI_TRANSITIONS=208} [2021-11-09 09:34:39,006 INFO L334 CegarLoopForPetriNet]: 179 programPoint places, 61 predicate places. [2021-11-09 09:34:39,006 INFO L470 AbstractCegarLoop]: Abstraction has has 240 places, 208 transitions, 835 flow [2021-11-09 09:34:39,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 163.5) internal successors, (1308), 8 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:39,008 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:34:39,008 INFO L254 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] [2021-11-09 09:34:39,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-09 09:34:39,008 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:34:39,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:39,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1034831196, now seen corresponding path program 5 times [2021-11-09 09:34:39,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:39,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147151819] [2021-11-09 09:34:39,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:39,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:39,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:39,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:39,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:39,093 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147151819] [2021-11-09 09:34:39,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147151819] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:34:39,094 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:34:39,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-09 09:34:39,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45395267] [2021-11-09 09:34:39,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-09 09:34:39,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:39,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-09 09:34:39,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-09 09:34:39,099 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 198 [2021-11-09 09:34:39,101 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 208 transitions, 835 flow. Second operand has 8 states, 8 states have (on average 163.5) internal successors, (1308), 8 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:39,101 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:34:39,102 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 198 [2021-11-09 09:34:39,102 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:34:39,448 INFO L129 PetriNetUnfolder]: 107/1107 cut-off events. [2021-11-09 09:34:39,449 INFO L130 PetriNetUnfolder]: For 1699/1753 co-relation queries the response was YES. [2021-11-09 09:34:39,459 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2395 conditions, 1107 events. 107/1107 cut-off events. For 1699/1753 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 6980 event pairs, 50 based on Foata normal form. 4/1032 useless extension candidates. Maximal degree in co-relation 2356. Up to 193 conditions per place. [2021-11-09 09:34:39,465 INFO L132 encePairwiseOnDemand]: 189/198 looper letters, 33 selfloop transitions, 4 changer transitions 14/221 dead transitions. [2021-11-09 09:34:39,466 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 221 transitions, 1051 flow [2021-11-09 09:34:39,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-09 09:34:39,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-09 09:34:39,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1814 transitions. [2021-11-09 09:34:39,473 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8328741965105602 [2021-11-09 09:34:39,473 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1814 transitions. [2021-11-09 09:34:39,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1814 transitions. [2021-11-09 09:34:39,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:34:39,475 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1814 transitions. [2021-11-09 09:34:39,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 164.9090909090909) internal successors, (1814), 11 states have internal predecessors, (1814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:39,486 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 198.0) internal successors, (2376), 12 states have internal predecessors, (2376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:39,487 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 198.0) internal successors, (2376), 12 states have internal predecessors, (2376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:39,488 INFO L186 Difference]: Start difference. First operand has 240 places, 208 transitions, 835 flow. Second operand 11 states and 1814 transitions. [2021-11-09 09:34:39,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 221 transitions, 1051 flow [2021-11-09 09:34:39,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 221 transitions, 1017 flow, removed 17 selfloop flow, removed 3 redundant places. [2021-11-09 09:34:39,510 INFO L242 Difference]: Finished difference. Result has 246 places, 202 transitions, 768 flow [2021-11-09 09:34:39,510 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=813, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=768, PETRI_PLACES=246, PETRI_TRANSITIONS=202} [2021-11-09 09:34:39,511 INFO L334 CegarLoopForPetriNet]: 179 programPoint places, 67 predicate places. [2021-11-09 09:34:39,511 INFO L470 AbstractCegarLoop]: Abstraction has has 246 places, 202 transitions, 768 flow [2021-11-09 09:34:39,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 163.5) internal successors, (1308), 8 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:39,512 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:34:39,512 INFO L254 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] [2021-11-09 09:34:39,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-09 09:34:39,513 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:34:39,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:39,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1916667078, now seen corresponding path program 6 times [2021-11-09 09:34:39,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:39,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841959250] [2021-11-09 09:34:39,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:39,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:39,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:39,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:39,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:39,591 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841959250] [2021-11-09 09:34:39,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841959250] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:34:39,591 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:34:39,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-09 09:34:39,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063467704] [2021-11-09 09:34:39,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-09 09:34:39,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:39,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-09 09:34:39,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-09 09:34:39,596 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 198 [2021-11-09 09:34:39,598 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 202 transitions, 768 flow. Second operand has 8 states, 8 states have (on average 163.5) internal successors, (1308), 8 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:39,598 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:34:39,598 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 198 [2021-11-09 09:34:39,598 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:34:39,943 INFO L129 PetriNetUnfolder]: 107/1153 cut-off events. [2021-11-09 09:34:39,944 INFO L130 PetriNetUnfolder]: For 1907/1953 co-relation queries the response was YES. [2021-11-09 09:34:39,955 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2366 conditions, 1153 events. 107/1153 cut-off events. For 1907/1953 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 7345 event pairs, 54 based on Foata normal form. 4/1069 useless extension candidates. Maximal degree in co-relation 2324. Up to 183 conditions per place. [2021-11-09 09:34:39,962 INFO L132 encePairwiseOnDemand]: 189/198 looper letters, 27 selfloop transitions, 2 changer transitions 16/213 dead transitions. [2021-11-09 09:34:39,963 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 213 transitions, 948 flow [2021-11-09 09:34:39,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-09 09:34:39,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-11-09 09:34:39,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1974 transitions. [2021-11-09 09:34:39,971 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8308080808080808 [2021-11-09 09:34:39,971 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1974 transitions. [2021-11-09 09:34:39,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1974 transitions. [2021-11-09 09:34:39,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:34:39,974 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1974 transitions. [2021-11-09 09:34:39,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 164.5) internal successors, (1974), 12 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:39,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 198.0) internal successors, (2574), 13 states have internal predecessors, (2574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:39,988 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 198.0) internal successors, (2574), 13 states have internal predecessors, (2574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:39,988 INFO L186 Difference]: Start difference. First operand has 246 places, 202 transitions, 768 flow. Second operand 12 states and 1974 transitions. [2021-11-09 09:34:39,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 213 transitions, 948 flow [2021-11-09 09:34:40,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 213 transitions, 898 flow, removed 16 selfloop flow, removed 11 redundant places. [2021-11-09 09:34:40,007 INFO L242 Difference]: Finished difference. Result has 241 places, 194 transitions, 688 flow [2021-11-09 09:34:40,008 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=738, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=688, PETRI_PLACES=241, PETRI_TRANSITIONS=194} [2021-11-09 09:34:40,009 INFO L334 CegarLoopForPetriNet]: 179 programPoint places, 62 predicate places. [2021-11-09 09:34:40,009 INFO L470 AbstractCegarLoop]: Abstraction has has 241 places, 194 transitions, 688 flow [2021-11-09 09:34:40,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 163.5) internal successors, (1308), 8 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:40,010 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:34:40,010 INFO L254 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] [2021-11-09 09:34:40,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-09 09:34:40,010 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:34:40,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:40,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1025854720, now seen corresponding path program 1 times [2021-11-09 09:34:40,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:40,011 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052087371] [2021-11-09 09:34:40,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:40,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:40,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:40,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:40,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:40,093 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052087371] [2021-11-09 09:34:40,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052087371] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:34:40,093 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:34:40,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-09 09:34:40,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710886195] [2021-11-09 09:34:40,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-09 09:34:40,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:40,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-09 09:34:40,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-09 09:34:40,097 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 198 [2021-11-09 09:34:40,099 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 194 transitions, 688 flow. Second operand has 8 states, 8 states have (on average 163.5) internal successors, (1308), 8 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:40,099 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:34:40,099 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 198 [2021-11-09 09:34:40,099 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:34:40,455 INFO L129 PetriNetUnfolder]: 110/1136 cut-off events. [2021-11-09 09:34:40,456 INFO L130 PetriNetUnfolder]: For 1458/1478 co-relation queries the response was YES. [2021-11-09 09:34:40,466 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2260 conditions, 1136 events. 110/1136 cut-off events. For 1458/1478 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 7153 event pairs, 42 based on Foata normal form. 2/1051 useless extension candidates. Maximal degree in co-relation 2220. Up to 162 conditions per place. [2021-11-09 09:34:40,473 INFO L132 encePairwiseOnDemand]: 189/198 looper letters, 30 selfloop transitions, 8 changer transitions 9/215 dead transitions. [2021-11-09 09:34:40,473 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 215 transitions, 939 flow [2021-11-09 09:34:40,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-09 09:34:40,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-09 09:34:40,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1815 transitions. [2021-11-09 09:34:40,479 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2021-11-09 09:34:40,480 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1815 transitions. [2021-11-09 09:34:40,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1815 transitions. [2021-11-09 09:34:40,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:34:40,481 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1815 transitions. [2021-11-09 09:34:40,485 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 165.0) internal successors, (1815), 11 states have internal predecessors, (1815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:40,491 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 198.0) internal successors, (2376), 12 states have internal predecessors, (2376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:40,492 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 198.0) internal successors, (2376), 12 states have internal predecessors, (2376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:40,492 INFO L186 Difference]: Start difference. First operand has 241 places, 194 transitions, 688 flow. Second operand 11 states and 1815 transitions. [2021-11-09 09:34:40,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 215 transitions, 939 flow [2021-11-09 09:34:40,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 215 transitions, 880 flow, removed 16 selfloop flow, removed 15 redundant places. [2021-11-09 09:34:40,509 INFO L242 Difference]: Finished difference. Result has 232 places, 200 transitions, 732 flow [2021-11-09 09:34:40,509 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=643, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=732, PETRI_PLACES=232, PETRI_TRANSITIONS=200} [2021-11-09 09:34:40,510 INFO L334 CegarLoopForPetriNet]: 179 programPoint places, 53 predicate places. [2021-11-09 09:34:40,510 INFO L470 AbstractCegarLoop]: Abstraction has has 232 places, 200 transitions, 732 flow [2021-11-09 09:34:40,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 163.5) internal successors, (1308), 8 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:40,511 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:34:40,511 INFO L254 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] [2021-11-09 09:34:40,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-09 09:34:40,511 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:34:40,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:40,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1745999164, now seen corresponding path program 2 times [2021-11-09 09:34:40,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:40,512 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836314737] [2021-11-09 09:34:40,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:40,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:40,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:40,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:40,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:40,586 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836314737] [2021-11-09 09:34:40,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836314737] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:34:40,586 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:34:40,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-09 09:34:40,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14318334] [2021-11-09 09:34:40,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-09 09:34:40,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:40,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-09 09:34:40,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-09 09:34:40,590 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 198 [2021-11-09 09:34:40,592 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 200 transitions, 732 flow. Second operand has 8 states, 8 states have (on average 163.5) internal successors, (1308), 8 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:40,592 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:34:40,592 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 198 [2021-11-09 09:34:40,593 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:34:40,982 INFO L129 PetriNetUnfolder]: 108/1151 cut-off events. [2021-11-09 09:34:40,982 INFO L130 PetriNetUnfolder]: For 1467/1499 co-relation queries the response was YES. [2021-11-09 09:34:40,991 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2357 conditions, 1151 events. 108/1151 cut-off events. For 1467/1499 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 7346 event pairs, 30 based on Foata normal form. 6/1074 useless extension candidates. Maximal degree in co-relation 2320. Up to 112 conditions per place. [2021-11-09 09:34:40,998 INFO L132 encePairwiseOnDemand]: 189/198 looper letters, 45 selfloop transitions, 6 changer transitions 14/233 dead transitions. [2021-11-09 09:34:40,998 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 233 transitions, 1128 flow [2021-11-09 09:34:40,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-09 09:34:40,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-11-09 09:34:41,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2144 transitions. [2021-11-09 09:34:41,004 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8329448329448329 [2021-11-09 09:34:41,004 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2144 transitions. [2021-11-09 09:34:41,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2144 transitions. [2021-11-09 09:34:41,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:34:41,005 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2144 transitions. [2021-11-09 09:34:41,010 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 164.92307692307693) internal successors, (2144), 13 states have internal predecessors, (2144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:41,017 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 198.0) internal successors, (2772), 14 states have internal predecessors, (2772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:41,018 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 198.0) internal successors, (2772), 14 states have internal predecessors, (2772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:41,018 INFO L186 Difference]: Start difference. First operand has 232 places, 200 transitions, 732 flow. Second operand 13 states and 2144 transitions. [2021-11-09 09:34:41,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 233 transitions, 1128 flow [2021-11-09 09:34:41,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 233 transitions, 1022 flow, removed 49 selfloop flow, removed 5 redundant places. [2021-11-09 09:34:41,037 INFO L242 Difference]: Finished difference. Result has 243 places, 200 transitions, 726 flow [2021-11-09 09:34:41,038 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=687, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=726, PETRI_PLACES=243, PETRI_TRANSITIONS=200} [2021-11-09 09:34:41,039 INFO L334 CegarLoopForPetriNet]: 179 programPoint places, 64 predicate places. [2021-11-09 09:34:41,039 INFO L470 AbstractCegarLoop]: Abstraction has has 243 places, 200 transitions, 726 flow [2021-11-09 09:34:41,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 163.5) internal successors, (1308), 8 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:41,040 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:34:41,040 INFO L254 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] [2021-11-09 09:34:41,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-09 09:34:41,040 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:34:41,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:41,041 INFO L85 PathProgramCache]: Analyzing trace with hash -2091997602, now seen corresponding path program 3 times [2021-11-09 09:34:41,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:41,041 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286264470] [2021-11-09 09:34:41,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:41,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:41,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:41,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:41,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:41,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286264470] [2021-11-09 09:34:41,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286264470] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:34:41,128 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:34:41,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-09 09:34:41,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395765560] [2021-11-09 09:34:41,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-09 09:34:41,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:41,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-09 09:34:41,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-09 09:34:41,132 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 198 [2021-11-09 09:34:41,134 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 200 transitions, 726 flow. Second operand has 8 states, 8 states have (on average 163.5) internal successors, (1308), 8 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:41,134 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:34:41,135 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 198 [2021-11-09 09:34:41,135 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:34:41,496 INFO L129 PetriNetUnfolder]: 98/1024 cut-off events. [2021-11-09 09:34:41,497 INFO L130 PetriNetUnfolder]: For 1755/1796 co-relation queries the response was YES. [2021-11-09 09:34:41,508 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2266 conditions, 1024 events. 98/1024 cut-off events. For 1755/1796 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 6332 event pairs, 24 based on Foata normal form. 2/960 useless extension candidates. Maximal degree in co-relation 2224. Up to 100 conditions per place. [2021-11-09 09:34:41,515 INFO L132 encePairwiseOnDemand]: 189/198 looper letters, 49 selfloop transitions, 6 changer transitions 12/235 dead transitions. [2021-11-09 09:34:41,516 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 235 transitions, 1173 flow [2021-11-09 09:34:41,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-09 09:34:41,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-11-09 09:34:41,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2147 transitions. [2021-11-09 09:34:41,522 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8341103341103341 [2021-11-09 09:34:41,522 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2147 transitions. [2021-11-09 09:34:41,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2147 transitions. [2021-11-09 09:34:41,526 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:34:41,526 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2147 transitions. [2021-11-09 09:34:41,554 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 165.15384615384616) internal successors, (2147), 13 states have internal predecessors, (2147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:41,558 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 198.0) internal successors, (2772), 14 states have internal predecessors, (2772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:41,559 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 198.0) internal successors, (2772), 14 states have internal predecessors, (2772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:41,560 INFO L186 Difference]: Start difference. First operand has 243 places, 200 transitions, 726 flow. Second operand 13 states and 2147 transitions. [2021-11-09 09:34:41,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 235 transitions, 1173 flow [2021-11-09 09:34:41,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 235 transitions, 1078 flow, removed 21 selfloop flow, removed 11 redundant places. [2021-11-09 09:34:41,578 INFO L242 Difference]: Finished difference. Result has 245 places, 200 transitions, 732 flow [2021-11-09 09:34:41,579 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=696, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=732, PETRI_PLACES=245, PETRI_TRANSITIONS=200} [2021-11-09 09:34:41,579 INFO L334 CegarLoopForPetriNet]: 179 programPoint places, 66 predicate places. [2021-11-09 09:34:41,580 INFO L470 AbstractCegarLoop]: Abstraction has has 245 places, 200 transitions, 732 flow [2021-11-09 09:34:41,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 163.5) internal successors, (1308), 8 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:41,580 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:34:41,581 INFO L254 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] [2021-11-09 09:34:41,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-09 09:34:41,581 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:34:41,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:41,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1926463024, now seen corresponding path program 4 times [2021-11-09 09:34:41,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:41,582 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536504781] [2021-11-09 09:34:41,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:41,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:41,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:41,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:41,664 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:41,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536504781] [2021-11-09 09:34:41,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536504781] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:34:41,665 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:34:41,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-09 09:34:41,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498617067] [2021-11-09 09:34:41,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-09 09:34:41,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:41,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-09 09:34:41,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-09 09:34:41,669 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 198 [2021-11-09 09:34:41,671 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 200 transitions, 732 flow. Second operand has 8 states, 8 states have (on average 163.5) internal successors, (1308), 8 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:41,671 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:34:41,671 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 198 [2021-11-09 09:34:41,671 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:34:42,008 INFO L129 PetriNetUnfolder]: 94/1045 cut-off events. [2021-11-09 09:34:42,008 INFO L130 PetriNetUnfolder]: For 2060/2103 co-relation queries the response was YES. [2021-11-09 09:34:42,020 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2336 conditions, 1045 events. 94/1045 cut-off events. For 2060/2103 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 6443 event pairs, 32 based on Foata normal form. 2/974 useless extension candidates. Maximal degree in co-relation 2293. Up to 154 conditions per place. [2021-11-09 09:34:42,027 INFO L132 encePairwiseOnDemand]: 189/198 looper letters, 34 selfloop transitions, 10 changer transitions 9/221 dead transitions. [2021-11-09 09:34:42,027 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 221 transitions, 1060 flow [2021-11-09 09:34:42,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-09 09:34:42,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-09 09:34:42,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1816 transitions. [2021-11-09 09:34:42,032 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8337924701561065 [2021-11-09 09:34:42,032 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1816 transitions. [2021-11-09 09:34:42,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1816 transitions. [2021-11-09 09:34:42,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:34:42,035 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1816 transitions. [2021-11-09 09:34:42,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 165.0909090909091) internal successors, (1816), 11 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:42,046 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 198.0) internal successors, (2376), 12 states have internal predecessors, (2376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:42,047 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 198.0) internal successors, (2376), 12 states have internal predecessors, (2376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:42,048 INFO L186 Difference]: Start difference. First operand has 245 places, 200 transitions, 732 flow. Second operand 11 states and 1816 transitions. [2021-11-09 09:34:42,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 221 transitions, 1060 flow [2021-11-09 09:34:42,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 221 transitions, 987 flow, removed 23 selfloop flow, removed 11 redundant places. [2021-11-09 09:34:42,066 INFO L242 Difference]: Finished difference. Result has 244 places, 206 transitions, 822 flow [2021-11-09 09:34:42,067 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=700, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=822, PETRI_PLACES=244, PETRI_TRANSITIONS=206} [2021-11-09 09:34:42,068 INFO L334 CegarLoopForPetriNet]: 179 programPoint places, 65 predicate places. [2021-11-09 09:34:42,068 INFO L470 AbstractCegarLoop]: Abstraction has has 244 places, 206 transitions, 822 flow [2021-11-09 09:34:42,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 163.5) internal successors, (1308), 8 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:42,069 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:34:42,069 INFO L254 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] [2021-11-09 09:34:42,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-09 09:34:42,069 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:34:42,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:42,070 INFO L85 PathProgramCache]: Analyzing trace with hash -75829728, now seen corresponding path program 5 times [2021-11-09 09:34:42,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:42,070 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755077026] [2021-11-09 09:34:42,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:42,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:42,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:42,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:42,162 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:42,163 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755077026] [2021-11-09 09:34:42,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755077026] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:34:42,165 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:34:42,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-09 09:34:42,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269844107] [2021-11-09 09:34:42,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-09 09:34:42,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:42,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-09 09:34:42,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-09 09:34:42,170 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 198 [2021-11-09 09:34:42,172 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 206 transitions, 822 flow. Second operand has 8 states, 8 states have (on average 163.5) internal successors, (1308), 8 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:42,172 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:34:42,172 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 198 [2021-11-09 09:34:42,172 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:34:42,508 INFO L129 PetriNetUnfolder]: 88/1039 cut-off events. [2021-11-09 09:34:42,509 INFO L130 PetriNetUnfolder]: For 1834/1892 co-relation queries the response was YES. [2021-11-09 09:34:42,520 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2254 conditions, 1039 events. 88/1039 cut-off events. For 1834/1892 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 6434 event pairs, 32 based on Foata normal form. 4/970 useless extension candidates. Maximal degree in co-relation 2211. Up to 144 conditions per place. [2021-11-09 09:34:42,526 INFO L132 encePairwiseOnDemand]: 189/198 looper letters, 33 selfloop transitions, 4 changer transitions 14/219 dead transitions. [2021-11-09 09:34:42,526 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 219 transitions, 1040 flow [2021-11-09 09:34:42,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-09 09:34:42,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-11-09 09:34:42,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1975 transitions. [2021-11-09 09:34:42,530 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8312289562289562 [2021-11-09 09:34:42,531 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1975 transitions. [2021-11-09 09:34:42,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1975 transitions. [2021-11-09 09:34:42,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:34:42,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1975 transitions. [2021-11-09 09:34:42,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 164.58333333333334) internal successors, (1975), 12 states have internal predecessors, (1975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:42,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 198.0) internal successors, (2574), 13 states have internal predecessors, (2574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:42,541 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 198.0) internal successors, (2574), 13 states have internal predecessors, (2574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:42,542 INFO L186 Difference]: Start difference. First operand has 244 places, 206 transitions, 822 flow. Second operand 12 states and 1975 transitions. [2021-11-09 09:34:42,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 219 transitions, 1040 flow [2021-11-09 09:34:42,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 219 transitions, 965 flow, removed 34 selfloop flow, removed 5 redundant places. [2021-11-09 09:34:42,565 INFO L242 Difference]: Finished difference. Result has 251 places, 200 transitions, 738 flow [2021-11-09 09:34:42,565 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=767, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=738, PETRI_PLACES=251, PETRI_TRANSITIONS=200} [2021-11-09 09:34:42,566 INFO L334 CegarLoopForPetriNet]: 179 programPoint places, 72 predicate places. [2021-11-09 09:34:42,566 INFO L470 AbstractCegarLoop]: Abstraction has has 251 places, 200 transitions, 738 flow [2021-11-09 09:34:42,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 163.5) internal successors, (1308), 8 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:42,567 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:34:42,567 INFO L254 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] [2021-11-09 09:34:42,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-09 09:34:42,567 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:34:42,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:42,568 INFO L85 PathProgramCache]: Analyzing trace with hash -88993334, now seen corresponding path program 6 times [2021-11-09 09:34:42,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:42,568 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703159168] [2021-11-09 09:34:42,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:42,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:42,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:42,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:42,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:42,655 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703159168] [2021-11-09 09:34:42,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703159168] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:34:42,658 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:34:42,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-09 09:34:42,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109969313] [2021-11-09 09:34:42,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-09 09:34:42,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:42,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-09 09:34:42,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-09 09:34:42,662 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 198 [2021-11-09 09:34:42,663 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 200 transitions, 738 flow. Second operand has 8 states, 8 states have (on average 163.5) internal successors, (1308), 8 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:42,664 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:34:42,664 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 198 [2021-11-09 09:34:42,664 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:34:42,995 INFO L129 PetriNetUnfolder]: 88/1075 cut-off events. [2021-11-09 09:34:42,996 INFO L130 PetriNetUnfolder]: For 1816/1867 co-relation queries the response was YES. [2021-11-09 09:34:43,005 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2168 conditions, 1075 events. 88/1075 cut-off events. For 1816/1867 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 6683 event pairs, 36 based on Foata normal form. 4/997 useless extension candidates. Maximal degree in co-relation 2123. Up to 136 conditions per place. [2021-11-09 09:34:43,014 INFO L132 encePairwiseOnDemand]: 189/198 looper letters, 27 selfloop transitions, 2 changer transitions 16/211 dead transitions. [2021-11-09 09:34:43,014 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 211 transitions, 916 flow [2021-11-09 09:34:43,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-09 09:34:43,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-11-09 09:34:43,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1974 transitions. [2021-11-09 09:34:43,020 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8308080808080808 [2021-11-09 09:34:43,020 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1974 transitions. [2021-11-09 09:34:43,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1974 transitions. [2021-11-09 09:34:43,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:34:43,022 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1974 transitions. [2021-11-09 09:34:43,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 164.5) internal successors, (1974), 12 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:43,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 198.0) internal successors, (2574), 13 states have internal predecessors, (2574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:43,032 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 198.0) internal successors, (2574), 13 states have internal predecessors, (2574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:43,032 INFO L186 Difference]: Start difference. First operand has 251 places, 200 transitions, 738 flow. Second operand 12 states and 1974 transitions. [2021-11-09 09:34:43,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 211 transitions, 916 flow [2021-11-09 09:34:43,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 211 transitions, 848 flow, removed 21 selfloop flow, removed 13 redundant places. [2021-11-09 09:34:43,048 INFO L242 Difference]: Finished difference. Result has 243 places, 192 transitions, 655 flow [2021-11-09 09:34:43,048 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=696, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=655, PETRI_PLACES=243, PETRI_TRANSITIONS=192} [2021-11-09 09:34:43,049 INFO L334 CegarLoopForPetriNet]: 179 programPoint places, 64 predicate places. [2021-11-09 09:34:43,049 INFO L470 AbstractCegarLoop]: Abstraction has has 243 places, 192 transitions, 655 flow [2021-11-09 09:34:43,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 163.5) internal successors, (1308), 8 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:43,050 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:34:43,050 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:34:43,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-09 09:34:43,051 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:34:43,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:43,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1741947760, now seen corresponding path program 1 times [2021-11-09 09:34:43,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:43,052 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817177293] [2021-11-09 09:34:43,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:43,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:43,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:43,131 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:43,131 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:43,131 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817177293] [2021-11-09 09:34:43,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817177293] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:34:43,132 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:34:43,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 09:34:43,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691002525] [2021-11-09 09:34:43,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 09:34:43,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:43,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 09:34:43,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-09 09:34:43,135 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 198 [2021-11-09 09:34:43,136 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 192 transitions, 655 flow. Second operand has 5 states, 5 states have (on average 173.2) internal successors, (866), 5 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:43,136 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:34:43,136 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 198 [2021-11-09 09:34:43,136 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:34:43,480 INFO L129 PetriNetUnfolder]: 110/1496 cut-off events. [2021-11-09 09:34:43,481 INFO L130 PetriNetUnfolder]: For 1496/1525 co-relation queries the response was YES. [2021-11-09 09:34:43,493 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2662 conditions, 1496 events. 110/1496 cut-off events. For 1496/1525 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 10129 event pairs, 51 based on Foata normal form. 1/1359 useless extension candidates. Maximal degree in co-relation 2621. Up to 90 conditions per place. [2021-11-09 09:34:43,499 INFO L132 encePairwiseOnDemand]: 191/198 looper letters, 22 selfloop transitions, 5 changer transitions 2/207 dead transitions. [2021-11-09 09:34:43,499 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 207 transitions, 743 flow [2021-11-09 09:34:43,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 09:34:43,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-09 09:34:43,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1056 transitions. [2021-11-09 09:34:43,503 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2021-11-09 09:34:43,503 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1056 transitions. [2021-11-09 09:34:43,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1056 transitions. [2021-11-09 09:34:43,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:34:43,504 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1056 transitions. [2021-11-09 09:34:43,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:43,509 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:43,510 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:43,510 INFO L186 Difference]: Start difference. First operand has 243 places, 192 transitions, 655 flow. Second operand 6 states and 1056 transitions. [2021-11-09 09:34:43,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 207 transitions, 743 flow [2021-11-09 09:34:43,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 207 transitions, 707 flow, removed 10 selfloop flow, removed 14 redundant places. [2021-11-09 09:34:43,528 INFO L242 Difference]: Finished difference. Result has 225 places, 194 transitions, 645 flow [2021-11-09 09:34:43,528 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=619, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=645, PETRI_PLACES=225, PETRI_TRANSITIONS=194} [2021-11-09 09:34:43,529 INFO L334 CegarLoopForPetriNet]: 179 programPoint places, 46 predicate places. [2021-11-09 09:34:43,529 INFO L470 AbstractCegarLoop]: Abstraction has has 225 places, 194 transitions, 645 flow [2021-11-09 09:34:43,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 173.2) internal successors, (866), 5 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:43,530 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:34:43,530 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:34:43,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-09 09:34:43,530 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:34:43,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:43,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1994033220, now seen corresponding path program 2 times [2021-11-09 09:34:43,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:43,531 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902246087] [2021-11-09 09:34:43,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:43,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:43,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:43,623 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:43,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:43,623 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902246087] [2021-11-09 09:34:43,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902246087] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:34:43,624 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16961895] [2021-11-09 09:34:43,624 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 09:34:43,624 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:34:43,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:34:43,630 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:34:43,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-09 09:34:43,748 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 09:34:43,748 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:34:43,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 09:34:43,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:34:44,241 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:44,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [16961895] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:34:44,242 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:34:44,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 8 [2021-11-09 09:34:44,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680306818] [2021-11-09 09:34:44,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-09 09:34:44,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:44,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-09 09:34:44,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-09 09:34:44,247 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 198 [2021-11-09 09:34:44,249 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 194 transitions, 645 flow. Second operand has 8 states, 8 states have (on average 173.0) internal successors, (1384), 8 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:44,249 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:34:44,249 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 198 [2021-11-09 09:34:44,250 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:34:44,861 INFO L129 PetriNetUnfolder]: 175/2396 cut-off events. [2021-11-09 09:34:44,861 INFO L130 PetriNetUnfolder]: For 1435/1482 co-relation queries the response was YES. [2021-11-09 09:34:44,880 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3857 conditions, 2396 events. 175/2396 cut-off events. For 1435/1482 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 18537 event pairs, 43 based on Foata normal form. 7/2238 useless extension candidates. Maximal degree in co-relation 3823. Up to 84 conditions per place. [2021-11-09 09:34:44,888 INFO L132 encePairwiseOnDemand]: 191/198 looper letters, 54 selfloop transitions, 12 changer transitions 1/245 dead transitions. [2021-11-09 09:34:44,888 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 245 transitions, 954 flow [2021-11-09 09:34:44,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-09 09:34:44,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-11-09 09:34:44,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1599 transitions. [2021-11-09 09:34:44,891 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8973063973063973 [2021-11-09 09:34:44,891 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1599 transitions. [2021-11-09 09:34:44,892 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1599 transitions. [2021-11-09 09:34:44,892 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:34:44,892 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1599 transitions. [2021-11-09 09:34:44,895 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 177.66666666666666) internal successors, (1599), 9 states have internal predecessors, (1599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:44,898 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 198.0) internal successors, (1980), 10 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:44,899 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 198.0) internal successors, (1980), 10 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:44,899 INFO L186 Difference]: Start difference. First operand has 225 places, 194 transitions, 645 flow. Second operand 9 states and 1599 transitions. [2021-11-09 09:34:44,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 245 transitions, 954 flow [2021-11-09 09:34:44,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 245 transitions, 931 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-11-09 09:34:44,918 INFO L242 Difference]: Finished difference. Result has 234 places, 206 transitions, 739 flow [2021-11-09 09:34:44,919 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=637, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=739, PETRI_PLACES=234, PETRI_TRANSITIONS=206} [2021-11-09 09:34:44,919 INFO L334 CegarLoopForPetriNet]: 179 programPoint places, 55 predicate places. [2021-11-09 09:34:44,919 INFO L470 AbstractCegarLoop]: Abstraction has has 234 places, 206 transitions, 739 flow [2021-11-09 09:34:44,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 173.0) internal successors, (1384), 8 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:44,920 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:34:44,920 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:34:44,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-09 09:34:45,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:34:45,145 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:34:45,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:45,146 INFO L85 PathProgramCache]: Analyzing trace with hash -2039469174, now seen corresponding path program 1 times [2021-11-09 09:34:45,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:45,146 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997310590] [2021-11-09 09:34:45,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:45,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:45,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:45,222 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:45,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:45,223 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997310590] [2021-11-09 09:34:45,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997310590] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:34:45,223 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:34:45,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 09:34:45,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436216913] [2021-11-09 09:34:45,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 09:34:45,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:45,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 09:34:45,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-09 09:34:45,227 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 198 [2021-11-09 09:34:45,228 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 206 transitions, 739 flow. Second operand has 5 states, 5 states have (on average 173.2) internal successors, (866), 5 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:45,228 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:34:45,228 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 198 [2021-11-09 09:34:45,228 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:34:45,760 INFO L129 PetriNetUnfolder]: 178/2639 cut-off events. [2021-11-09 09:34:45,760 INFO L130 PetriNetUnfolder]: For 1523/1570 co-relation queries the response was YES. [2021-11-09 09:34:45,787 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4190 conditions, 2639 events. 178/2639 cut-off events. For 1523/1570 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 21006 event pairs, 79 based on Foata normal form. 3/2438 useless extension candidates. Maximal degree in co-relation 4152. Up to 135 conditions per place. [2021-11-09 09:34:45,804 INFO L132 encePairwiseOnDemand]: 192/198 looper letters, 40 selfloop transitions, 13 changer transitions 0/231 dead transitions. [2021-11-09 09:34:45,804 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 231 transitions, 962 flow [2021-11-09 09:34:45,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 09:34:45,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-11-09 09:34:45,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 889 transitions. [2021-11-09 09:34:45,807 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.897979797979798 [2021-11-09 09:34:45,807 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 889 transitions. [2021-11-09 09:34:45,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 889 transitions. [2021-11-09 09:34:45,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:34:45,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 889 transitions. [2021-11-09 09:34:45,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 177.8) internal successors, (889), 5 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:45,812 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:45,812 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:45,812 INFO L186 Difference]: Start difference. First operand has 234 places, 206 transitions, 739 flow. Second operand 5 states and 889 transitions. [2021-11-09 09:34:45,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 231 transitions, 962 flow [2021-11-09 09:34:45,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 231 transitions, 962 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-09 09:34:45,831 INFO L242 Difference]: Finished difference. Result has 241 places, 210 transitions, 813 flow [2021-11-09 09:34:45,832 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=739, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=813, PETRI_PLACES=241, PETRI_TRANSITIONS=210} [2021-11-09 09:34:45,832 INFO L334 CegarLoopForPetriNet]: 179 programPoint places, 62 predicate places. [2021-11-09 09:34:45,832 INFO L470 AbstractCegarLoop]: Abstraction has has 241 places, 210 transitions, 813 flow [2021-11-09 09:34:45,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 173.2) internal successors, (866), 5 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:45,833 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:34:45,833 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:34:45,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-09 09:34:45,834 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:34:45,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:45,834 INFO L85 PathProgramCache]: Analyzing trace with hash -722681906, now seen corresponding path program 2 times [2021-11-09 09:34:45,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:45,835 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59427843] [2021-11-09 09:34:45,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:45,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:45,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:45,932 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:45,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:45,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59427843] [2021-11-09 09:34:45,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59427843] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:34:45,934 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:34:45,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 09:34:45,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102847148] [2021-11-09 09:34:45,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 09:34:45,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:45,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 09:34:45,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-09 09:34:45,937 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 198 [2021-11-09 09:34:45,938 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 210 transitions, 813 flow. Second operand has 5 states, 5 states have (on average 173.2) internal successors, (866), 5 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:45,938 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:34:45,938 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 198 [2021-11-09 09:34:45,938 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:34:46,489 INFO L129 PetriNetUnfolder]: 180/2467 cut-off events. [2021-11-09 09:34:46,489 INFO L130 PetriNetUnfolder]: For 1957/2001 co-relation queries the response was YES. [2021-11-09 09:34:46,511 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4253 conditions, 2467 events. 180/2467 cut-off events. For 1957/2001 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 19111 event pairs, 80 based on Foata normal form. 2/2280 useless extension candidates. Maximal degree in co-relation 4211. Up to 134 conditions per place. [2021-11-09 09:34:46,519 INFO L132 encePairwiseOnDemand]: 191/198 looper letters, 39 selfloop transitions, 8 changer transitions 4/229 dead transitions. [2021-11-09 09:34:46,519 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 229 transitions, 1034 flow [2021-11-09 09:34:46,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 09:34:46,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-09 09:34:46,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1058 transitions. [2021-11-09 09:34:46,521 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8905723905723906 [2021-11-09 09:34:46,522 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1058 transitions. [2021-11-09 09:34:46,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1058 transitions. [2021-11-09 09:34:46,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:34:46,522 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1058 transitions. [2021-11-09 09:34:46,524 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 176.33333333333334) internal successors, (1058), 6 states have internal predecessors, (1058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:46,526 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:46,527 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:46,527 INFO L186 Difference]: Start difference. First operand has 241 places, 210 transitions, 813 flow. Second operand 6 states and 1058 transitions. [2021-11-09 09:34:46,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 229 transitions, 1034 flow [2021-11-09 09:34:46,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 229 transitions, 1013 flow, removed 4 selfloop flow, removed 1 redundant places. [2021-11-09 09:34:46,548 INFO L242 Difference]: Finished difference. Result has 247 places, 210 transitions, 816 flow [2021-11-09 09:34:46,548 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=795, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=816, PETRI_PLACES=247, PETRI_TRANSITIONS=210} [2021-11-09 09:34:46,549 INFO L334 CegarLoopForPetriNet]: 179 programPoint places, 68 predicate places. [2021-11-09 09:34:46,549 INFO L470 AbstractCegarLoop]: Abstraction has has 247 places, 210 transitions, 816 flow [2021-11-09 09:34:46,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 173.2) internal successors, (866), 5 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:46,549 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:34:46,550 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:34:46,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-09 09:34:46,550 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:34:46,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:46,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1879329630, now seen corresponding path program 3 times [2021-11-09 09:34:46,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:46,551 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957890823] [2021-11-09 09:34:46,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:46,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:46,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:46,636 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:46,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:46,637 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957890823] [2021-11-09 09:34:46,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957890823] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:34:46,637 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1110497415] [2021-11-09 09:34:46,637 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 09:34:46,638 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:34:46,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:34:46,641 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:34:46,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-09 09:34:46,796 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-09 09:34:46,796 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:34:46,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 09:34:46,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:34:47,404 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:47,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1110497415] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:34:47,405 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:34:47,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2021-11-09 09:34:47,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317979682] [2021-11-09 09:34:47,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-09 09:34:47,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:47,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-09 09:34:47,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-11-09 09:34:47,411 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 198 [2021-11-09 09:34:47,413 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 210 transitions, 816 flow. Second operand has 9 states, 9 states have (on average 173.0) internal successors, (1557), 9 states have internal predecessors, (1557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:47,413 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:34:47,414 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 198 [2021-11-09 09:34:47,414 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:34:48,223 INFO L129 PetriNetUnfolder]: 216/3545 cut-off events. [2021-11-09 09:34:48,226 INFO L130 PetriNetUnfolder]: For 2838/2895 co-relation queries the response was YES. [2021-11-09 09:34:48,275 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5974 conditions, 3545 events. 216/3545 cut-off events. For 2838/2895 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 31686 event pairs, 99 based on Foata normal form. 11/3297 useless extension candidates. Maximal degree in co-relation 5930. Up to 139 conditions per place. [2021-11-09 09:34:48,287 INFO L132 encePairwiseOnDemand]: 190/198 looper letters, 42 selfloop transitions, 23 changer transitions 0/243 dead transitions. [2021-11-09 09:34:48,288 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 243 transitions, 1166 flow [2021-11-09 09:34:48,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-09 09:34:48,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-11-09 09:34:48,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1243 transitions. [2021-11-09 09:34:48,291 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8968253968253969 [2021-11-09 09:34:48,291 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1243 transitions. [2021-11-09 09:34:48,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1243 transitions. [2021-11-09 09:34:48,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:34:48,292 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1243 transitions. [2021-11-09 09:34:48,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 177.57142857142858) internal successors, (1243), 7 states have internal predecessors, (1243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:48,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 198.0) internal successors, (1584), 8 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:48,299 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 198.0) internal successors, (1584), 8 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:48,299 INFO L186 Difference]: Start difference. First operand has 247 places, 210 transitions, 816 flow. Second operand 7 states and 1243 transitions. [2021-11-09 09:34:48,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 243 transitions, 1166 flow [2021-11-09 09:34:48,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 243 transitions, 1142 flow, removed 5 selfloop flow, removed 3 redundant places. [2021-11-09 09:34:48,327 INFO L242 Difference]: Finished difference. Result has 254 places, 221 transitions, 996 flow [2021-11-09 09:34:48,327 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=805, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=996, PETRI_PLACES=254, PETRI_TRANSITIONS=221} [2021-11-09 09:34:48,328 INFO L334 CegarLoopForPetriNet]: 179 programPoint places, 75 predicate places. [2021-11-09 09:34:48,328 INFO L470 AbstractCegarLoop]: Abstraction has has 254 places, 221 transitions, 996 flow [2021-11-09 09:34:48,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 173.0) internal successors, (1557), 9 states have internal predecessors, (1557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:48,329 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:34:48,329 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:34:48,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-09 09:34:48,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:34:48,553 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:34:48,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:48,554 INFO L85 PathProgramCache]: Analyzing trace with hash -453569984, now seen corresponding path program 3 times [2021-11-09 09:34:48,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:48,554 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291968769] [2021-11-09 09:34:48,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:48,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:48,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:48,642 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:48,643 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:48,643 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291968769] [2021-11-09 09:34:48,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291968769] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:34:48,643 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [180710218] [2021-11-09 09:34:48,643 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 09:34:48,644 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:34:48,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:34:48,645 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:34:48,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-09 09:34:48,887 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-09 09:34:48,887 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:34:48,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 09:34:48,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:34:49,268 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:49,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [180710218] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:34:49,268 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:34:49,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 8 [2021-11-09 09:34:49,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576124037] [2021-11-09 09:34:49,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-09 09:34:49,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:49,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-09 09:34:49,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-09 09:34:49,272 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 198 [2021-11-09 09:34:49,273 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 221 transitions, 996 flow. Second operand has 8 states, 8 states have (on average 173.0) internal successors, (1384), 8 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:49,273 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:34:49,274 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 198 [2021-11-09 09:34:49,274 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:34:50,121 INFO L129 PetriNetUnfolder]: 229/3830 cut-off events. [2021-11-09 09:34:50,121 INFO L130 PetriNetUnfolder]: For 3830/3892 co-relation queries the response was YES. [2021-11-09 09:34:50,145 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6708 conditions, 3830 events. 229/3830 cut-off events. For 3830/3892 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 34926 event pairs, 81 based on Foata normal form. 9/3558 useless extension candidates. Maximal degree in co-relation 6660. Up to 115 conditions per place. [2021-11-09 09:34:50,155 INFO L132 encePairwiseOnDemand]: 191/198 looper letters, 63 selfloop transitions, 24 changer transitions 1/266 dead transitions. [2021-11-09 09:34:50,155 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 266 transitions, 1468 flow [2021-11-09 09:34:50,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-09 09:34:50,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-11-09 09:34:50,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1594 transitions. [2021-11-09 09:34:50,159 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8945005611672279 [2021-11-09 09:34:50,159 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1594 transitions. [2021-11-09 09:34:50,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1594 transitions. [2021-11-09 09:34:50,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:34:50,160 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1594 transitions. [2021-11-09 09:34:50,163 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 177.11111111111111) internal successors, (1594), 9 states have internal predecessors, (1594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:50,166 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 198.0) internal successors, (1980), 10 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:50,167 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 198.0) internal successors, (1980), 10 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:50,167 INFO L186 Difference]: Start difference. First operand has 254 places, 221 transitions, 996 flow. Second operand 9 states and 1594 transitions. [2021-11-09 09:34:50,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 266 transitions, 1468 flow [2021-11-09 09:34:50,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 266 transitions, 1443 flow, removed 6 selfloop flow, removed 1 redundant places. [2021-11-09 09:34:50,201 INFO L242 Difference]: Finished difference. Result has 263 places, 226 transitions, 1084 flow [2021-11-09 09:34:50,201 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=971, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1084, PETRI_PLACES=263, PETRI_TRANSITIONS=226} [2021-11-09 09:34:50,201 INFO L334 CegarLoopForPetriNet]: 179 programPoint places, 84 predicate places. [2021-11-09 09:34:50,202 INFO L470 AbstractCegarLoop]: Abstraction has has 263 places, 226 transitions, 1084 flow [2021-11-09 09:34:50,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 173.0) internal successors, (1384), 8 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:50,202 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:34:50,203 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:34:50,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-09 09:34:50,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-11-09 09:34:50,417 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:34:50,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:50,418 INFO L85 PathProgramCache]: Analyzing trace with hash 545077290, now seen corresponding path program 4 times [2021-11-09 09:34:50,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:50,418 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706397179] [2021-11-09 09:34:50,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:50,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:50,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:50,479 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:50,479 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:50,480 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706397179] [2021-11-09 09:34:50,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706397179] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:34:50,480 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:34:50,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 09:34:50,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159419056] [2021-11-09 09:34:50,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 09:34:50,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:50,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 09:34:50,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-09 09:34:50,483 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 198 [2021-11-09 09:34:50,484 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 226 transitions, 1084 flow. Second operand has 5 states, 5 states have (on average 173.2) internal successors, (866), 5 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:50,484 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:34:50,485 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 198 [2021-11-09 09:34:50,485 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:34:51,240 INFO L129 PetriNetUnfolder]: 234/3914 cut-off events. [2021-11-09 09:34:51,240 INFO L130 PetriNetUnfolder]: For 4459/4522 co-relation queries the response was YES. [2021-11-09 09:34:51,277 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7039 conditions, 3914 events. 234/3914 cut-off events. For 4459/4522 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 35867 event pairs, 114 based on Foata normal form. 4/3627 useless extension candidates. Maximal degree in co-relation 6989. Up to 166 conditions per place. [2021-11-09 09:34:51,291 INFO L132 encePairwiseOnDemand]: 190/198 looper letters, 51 selfloop transitions, 20 changer transitions 3/252 dead transitions. [2021-11-09 09:34:51,292 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 252 transitions, 1455 flow [2021-11-09 09:34:51,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 09:34:51,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-09 09:34:51,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1070 transitions. [2021-11-09 09:34:51,294 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9006734006734006 [2021-11-09 09:34:51,295 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1070 transitions. [2021-11-09 09:34:51,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1070 transitions. [2021-11-09 09:34:51,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:34:51,296 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1070 transitions. [2021-11-09 09:34:51,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 178.33333333333334) internal successors, (1070), 6 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:51,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:51,301 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:51,301 INFO L186 Difference]: Start difference. First operand has 263 places, 226 transitions, 1084 flow. Second operand 6 states and 1070 transitions. [2021-11-09 09:34:51,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 252 transitions, 1455 flow [2021-11-09 09:34:51,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 252 transitions, 1384 flow, removed 13 selfloop flow, removed 4 redundant places. [2021-11-09 09:34:51,347 INFO L242 Difference]: Finished difference. Result has 266 places, 231 transitions, 1157 flow [2021-11-09 09:34:51,348 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=1023, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1157, PETRI_PLACES=266, PETRI_TRANSITIONS=231} [2021-11-09 09:34:51,348 INFO L334 CegarLoopForPetriNet]: 179 programPoint places, 87 predicate places. [2021-11-09 09:34:51,348 INFO L470 AbstractCegarLoop]: Abstraction has has 266 places, 231 transitions, 1157 flow [2021-11-09 09:34:51,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 173.2) internal successors, (866), 5 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:51,349 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:34:51,349 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:34:51,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-09 09:34:51,350 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:34:51,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:51,350 INFO L85 PathProgramCache]: Analyzing trace with hash 643125006, now seen corresponding path program 5 times [2021-11-09 09:34:51,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:51,351 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443818579] [2021-11-09 09:34:51,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:51,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:51,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:51,429 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:51,429 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:51,429 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443818579] [2021-11-09 09:34:51,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443818579] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:34:51,430 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [222402121] [2021-11-09 09:34:51,430 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 09:34:51,430 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:34:51,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:34:51,437 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:34:51,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-09 09:34:51,674 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 09:34:51,674 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:34:51,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 09:34:51,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:34:52,151 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:52,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [222402121] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:34:52,152 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:34:52,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2021-11-09 09:34:52,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454008581] [2021-11-09 09:34:52,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-09 09:34:52,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:52,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-09 09:34:52,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-11-09 09:34:52,156 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 198 [2021-11-09 09:34:52,157 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 231 transitions, 1157 flow. Second operand has 9 states, 9 states have (on average 173.11111111111111) internal successors, (1558), 9 states have internal predecessors, (1558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:52,158 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:34:52,158 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 198 [2021-11-09 09:34:52,158 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:34:52,904 INFO L129 PetriNetUnfolder]: 210/3641 cut-off events. [2021-11-09 09:34:52,904 INFO L130 PetriNetUnfolder]: For 4340/4395 co-relation queries the response was YES. [2021-11-09 09:34:52,925 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6524 conditions, 3641 events. 210/3641 cut-off events. For 4340/4395 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 33312 event pairs, 96 based on Foata normal form. 9/3387 useless extension candidates. Maximal degree in co-relation 6472. Up to 168 conditions per place. [2021-11-09 09:34:52,937 INFO L132 encePairwiseOnDemand]: 190/198 looper letters, 52 selfloop transitions, 24 changer transitions 2/256 dead transitions. [2021-11-09 09:34:52,938 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 256 transitions, 1475 flow [2021-11-09 09:34:52,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-09 09:34:52,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-11-09 09:34:52,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1245 transitions. [2021-11-09 09:34:52,941 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8982683982683982 [2021-11-09 09:34:52,941 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1245 transitions. [2021-11-09 09:34:52,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1245 transitions. [2021-11-09 09:34:52,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:34:52,942 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1245 transitions. [2021-11-09 09:34:52,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 177.85714285714286) internal successors, (1245), 7 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) [2021-11-09 09:34:52,947 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 198.0) internal successors, (1584), 8 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:52,948 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 198.0) internal successors, (1584), 8 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:52,948 INFO L186 Difference]: Start difference. First operand has 266 places, 231 transitions, 1157 flow. Second operand 7 states and 1245 transitions. [2021-11-09 09:34:52,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 256 transitions, 1475 flow [2021-11-09 09:34:52,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 270 places, 256 transitions, 1431 flow, removed 15 selfloop flow, removed 1 redundant places. [2021-11-09 09:34:52,989 INFO L242 Difference]: Finished difference. Result has 274 places, 234 transitions, 1215 flow [2021-11-09 09:34:52,989 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=1072, PETRI_DIFFERENCE_MINUEND_PLACES=264, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1215, PETRI_PLACES=274, PETRI_TRANSITIONS=234} [2021-11-09 09:34:52,990 INFO L334 CegarLoopForPetriNet]: 179 programPoint places, 95 predicate places. [2021-11-09 09:34:52,990 INFO L470 AbstractCegarLoop]: Abstraction has has 274 places, 234 transitions, 1215 flow [2021-11-09 09:34:52,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 173.11111111111111) internal successors, (1558), 9 states have internal predecessors, (1558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:52,991 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:34:52,991 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:34:53,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-09 09:34:53,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-11-09 09:34:53,217 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:34:53,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:53,218 INFO L85 PathProgramCache]: Analyzing trace with hash -326483030, now seen corresponding path program 4 times [2021-11-09 09:34:53,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:53,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825508044] [2021-11-09 09:34:53,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:53,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:53,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:53,372 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:53,373 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:53,373 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825508044] [2021-11-09 09:34:53,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825508044] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:34:53,373 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [412827126] [2021-11-09 09:34:53,374 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 09:34:53,374 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:34:53,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:34:53,381 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:34:53,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-09 09:34:53,697 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 09:34:53,698 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:34:53,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 09:34:53,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:34:54,302 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:54,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [412827126] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:34:54,302 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:34:54,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2021-11-09 09:34:54,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539198098] [2021-11-09 09:34:54,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-09 09:34:54,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:54,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-09 09:34:54,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-09 09:34:54,307 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 198 [2021-11-09 09:34:54,309 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 234 transitions, 1215 flow. Second operand has 9 states, 9 states have (on average 173.0) internal successors, (1557), 9 states have internal predecessors, (1557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:54,309 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:34:54,309 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 198 [2021-11-09 09:34:54,310 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:34:55,284 INFO L129 PetriNetUnfolder]: 226/3893 cut-off events. [2021-11-09 09:34:55,285 INFO L130 PetriNetUnfolder]: For 4732/4789 co-relation queries the response was YES. [2021-11-09 09:34:55,317 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6939 conditions, 3893 events. 226/3893 cut-off events. For 4732/4789 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 36124 event pairs, 97 based on Foata normal form. 5/3613 useless extension candidates. Maximal degree in co-relation 6883. Up to 152 conditions per place. [2021-11-09 09:34:55,334 INFO L132 encePairwiseOnDemand]: 190/198 looper letters, 59 selfloop transitions, 30 changer transitions 1/268 dead transitions. [2021-11-09 09:34:55,334 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 268 transitions, 1652 flow [2021-11-09 09:34:55,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-09 09:34:55,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-11-09 09:34:55,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1418 transitions. [2021-11-09 09:34:55,337 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8952020202020202 [2021-11-09 09:34:55,337 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1418 transitions. [2021-11-09 09:34:55,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1418 transitions. [2021-11-09 09:34:55,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:34:55,338 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1418 transitions. [2021-11-09 09:34:55,341 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 177.25) internal successors, (1418), 8 states have internal predecessors, (1418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:55,343 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 198.0) internal successors, (1782), 9 states have internal predecessors, (1782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:55,344 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 198.0) internal successors, (1782), 9 states have internal predecessors, (1782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:55,344 INFO L186 Difference]: Start difference. First operand has 274 places, 234 transitions, 1215 flow. Second operand 8 states and 1418 transitions. [2021-11-09 09:34:55,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 268 transitions, 1652 flow [2021-11-09 09:34:55,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 268 transitions, 1602 flow, removed 6 selfloop flow, removed 3 redundant places. [2021-11-09 09:34:55,383 INFO L242 Difference]: Finished difference. Result has 280 places, 244 transitions, 1376 flow [2021-11-09 09:34:55,383 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=1167, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1376, PETRI_PLACES=280, PETRI_TRANSITIONS=244} [2021-11-09 09:34:55,384 INFO L334 CegarLoopForPetriNet]: 179 programPoint places, 101 predicate places. [2021-11-09 09:34:55,384 INFO L470 AbstractCegarLoop]: Abstraction has has 280 places, 244 transitions, 1376 flow [2021-11-09 09:34:55,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 173.0) internal successors, (1557), 9 states have internal predecessors, (1557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:55,385 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:34:55,385 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:34:55,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-09 09:34:55,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-11-09 09:34:55,601 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:34:55,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:55,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1271417810, now seen corresponding path program 6 times [2021-11-09 09:34:55,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:55,602 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614777880] [2021-11-09 09:34:55,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:55,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:55,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:55,659 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:55,660 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:55,660 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614777880] [2021-11-09 09:34:55,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614777880] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:34:55,660 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:34:55,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 09:34:55,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801831873] [2021-11-09 09:34:55,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 09:34:55,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:55,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 09:34:55,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-09 09:34:55,663 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 198 [2021-11-09 09:34:55,664 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 244 transitions, 1376 flow. Second operand has 5 states, 5 states have (on average 173.2) internal successors, (866), 5 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:55,664 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:34:55,664 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 198 [2021-11-09 09:34:55,664 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:34:56,266 INFO L129 PetriNetUnfolder]: 204/3392 cut-off events. [2021-11-09 09:34:56,267 INFO L130 PetriNetUnfolder]: For 4314/4357 co-relation queries the response was YES. [2021-11-09 09:34:56,297 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6148 conditions, 3392 events. 204/3392 cut-off events. For 4314/4357 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 30027 event pairs, 96 based on Foata normal form. 2/3135 useless extension candidates. Maximal degree in co-relation 6089. Up to 181 conditions per place. [2021-11-09 09:34:56,306 INFO L132 encePairwiseOnDemand]: 190/198 looper letters, 51 selfloop transitions, 23 changer transitions 9/253 dead transitions. [2021-11-09 09:34:56,307 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 253 transitions, 1627 flow [2021-11-09 09:34:56,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 09:34:56,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-09 09:34:56,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1061 transitions. [2021-11-09 09:34:56,309 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8930976430976431 [2021-11-09 09:34:56,309 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1061 transitions. [2021-11-09 09:34:56,310 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1061 transitions. [2021-11-09 09:34:56,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:34:56,310 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1061 transitions. [2021-11-09 09:34:56,312 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 176.83333333333334) internal successors, (1061), 6 states have internal predecessors, (1061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:56,314 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:56,315 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:56,315 INFO L186 Difference]: Start difference. First operand has 280 places, 244 transitions, 1376 flow. Second operand 6 states and 1061 transitions. [2021-11-09 09:34:56,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 253 transitions, 1627 flow [2021-11-09 09:34:56,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 253 transitions, 1580 flow, removed 9 selfloop flow, removed 4 redundant places. [2021-11-09 09:34:56,357 INFO L242 Difference]: Finished difference. Result has 283 places, 235 transitions, 1279 flow [2021-11-09 09:34:56,358 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=1281, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1279, PETRI_PLACES=283, PETRI_TRANSITIONS=235} [2021-11-09 09:34:56,358 INFO L334 CegarLoopForPetriNet]: 179 programPoint places, 104 predicate places. [2021-11-09 09:34:56,358 INFO L470 AbstractCegarLoop]: Abstraction has has 283 places, 235 transitions, 1279 flow [2021-11-09 09:34:56,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 173.2) internal successors, (866), 5 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:56,359 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:34:56,359 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:34:56,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-09 09:34:56,359 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:34:56,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:56,360 INFO L85 PathProgramCache]: Analyzing trace with hash 411444530, now seen corresponding path program 7 times [2021-11-09 09:34:56,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:56,360 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024794009] [2021-11-09 09:34:56,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:56,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:56,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:56,430 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:56,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:56,430 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024794009] [2021-11-09 09:34:56,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024794009] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:34:56,431 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1946277335] [2021-11-09 09:34:56,431 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 09:34:56,431 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:34:56,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:34:56,437 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:34:56,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-09 09:34:56,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:56,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 09:34:56,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:34:57,206 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:57,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1946277335] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:34:57,207 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:34:57,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2021-11-09 09:34:57,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966339209] [2021-11-09 09:34:57,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-09 09:34:57,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:57,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-09 09:34:57,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-09 09:34:57,211 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 198 [2021-11-09 09:34:57,212 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 235 transitions, 1279 flow. Second operand has 9 states, 9 states have (on average 173.0) internal successors, (1557), 9 states have internal predecessors, (1557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:57,213 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:34:57,213 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 198 [2021-11-09 09:34:57,213 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:34:57,995 INFO L129 PetriNetUnfolder]: 214/3577 cut-off events. [2021-11-09 09:34:57,996 INFO L130 PetriNetUnfolder]: For 4196/4241 co-relation queries the response was YES. [2021-11-09 09:34:58,025 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6303 conditions, 3577 events. 214/3577 cut-off events. For 4196/4241 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 32311 event pairs, 94 based on Foata normal form. 4/3303 useless extension candidates. Maximal degree in co-relation 6242. Up to 163 conditions per place. [2021-11-09 09:34:58,033 INFO L132 encePairwiseOnDemand]: 190/198 looper letters, 60 selfloop transitions, 35 changer transitions 1/266 dead transitions. [2021-11-09 09:34:58,033 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 266 transitions, 1702 flow [2021-11-09 09:34:58,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-09 09:34:58,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-11-09 09:34:58,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1416 transitions. [2021-11-09 09:34:58,036 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8939393939393939 [2021-11-09 09:34:58,037 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1416 transitions. [2021-11-09 09:34:58,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1416 transitions. [2021-11-09 09:34:58,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:34:58,038 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1416 transitions. [2021-11-09 09:34:58,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 177.0) internal successors, (1416), 8 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:58,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 198.0) internal successors, (1782), 9 states have internal predecessors, (1782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:58,044 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 198.0) internal successors, (1782), 9 states have internal predecessors, (1782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:58,044 INFO L186 Difference]: Start difference. First operand has 283 places, 235 transitions, 1279 flow. Second operand 8 states and 1416 transitions. [2021-11-09 09:34:58,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 266 transitions, 1702 flow [2021-11-09 09:34:58,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 266 transitions, 1594 flow, removed 6 selfloop flow, removed 13 redundant places. [2021-11-09 09:34:58,106 INFO L242 Difference]: Finished difference. Result has 277 places, 244 transitions, 1373 flow [2021-11-09 09:34:58,107 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=1174, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1373, PETRI_PLACES=277, PETRI_TRANSITIONS=244} [2021-11-09 09:34:58,107 INFO L334 CegarLoopForPetriNet]: 179 programPoint places, 98 predicate places. [2021-11-09 09:34:58,107 INFO L470 AbstractCegarLoop]: Abstraction has has 277 places, 244 transitions, 1373 flow [2021-11-09 09:34:58,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 173.0) internal successors, (1557), 9 states have internal predecessors, (1557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:58,108 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:34:58,108 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:34:58,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-09 09:34:58,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-11-09 09:34:58,337 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:34:58,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:58,338 INFO L85 PathProgramCache]: Analyzing trace with hash -7045842, now seen corresponding path program 1 times [2021-11-09 09:34:58,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:58,338 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450033425] [2021-11-09 09:34:58,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:58,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:58,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:58,619 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:58,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:58,619 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450033425] [2021-11-09 09:34:58,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450033425] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:34:58,619 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176701623] [2021-11-09 09:34:58,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:58,619 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:34:58,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:34:58,625 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:34:58,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-09 09:34:59,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:59,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-09 09:34:59,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:34:59,950 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:59,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176701623] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:34:59,950 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:34:59,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 24 [2021-11-09 09:34:59,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37717936] [2021-11-09 09:34:59,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-09 09:34:59,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:59,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-09 09:34:59,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=496, Unknown=0, NotChecked=0, Total=552 [2021-11-09 09:34:59,956 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 198 [2021-11-09 09:34:59,960 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 244 transitions, 1373 flow. Second operand has 24 states, 24 states have (on average 135.58333333333334) internal successors, (3254), 24 states have internal predecessors, (3254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:59,960 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:34:59,960 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 198 [2021-11-09 09:34:59,960 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:35:06,578 INFO L129 PetriNetUnfolder]: 5097/24626 cut-off events. [2021-11-09 09:35:06,579 INFO L130 PetriNetUnfolder]: For 17669/17827 co-relation queries the response was YES. [2021-11-09 09:35:06,845 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46276 conditions, 24626 events. 5097/24626 cut-off events. For 17669/17827 co-relation queries the response was YES. Maximal size of possible extension queue 483. Compared 304629 event pairs, 813 based on Foata normal form. 43/23039 useless extension candidates. Maximal degree in co-relation 46220. Up to 5337 conditions per place. [2021-11-09 09:35:06,895 INFO L132 encePairwiseOnDemand]: 173/198 looper letters, 394 selfloop transitions, 107 changer transitions 3/692 dead transitions. [2021-11-09 09:35:06,895 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 692 transitions, 3558 flow [2021-11-09 09:35:06,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-11-09 09:35:06,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2021-11-09 09:35:06,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 7282 transitions. [2021-11-09 09:35:06,908 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7211328976034859 [2021-11-09 09:35:06,908 INFO L72 ComplementDD]: Start complementDD. Operand 51 states and 7282 transitions. [2021-11-09 09:35:06,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 7282 transitions. [2021-11-09 09:35:06,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:35:06,911 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 51 states and 7282 transitions. [2021-11-09 09:35:06,923 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 52 states, 51 states have (on average 142.7843137254902) internal successors, (7282), 51 states have internal predecessors, (7282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:35:06,936 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 52 states, 52 states have (on average 198.0) internal successors, (10296), 52 states have internal predecessors, (10296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:35:06,940 INFO L81 ComplementDD]: Finished complementDD. Result has 52 states, 52 states have (on average 198.0) internal successors, (10296), 52 states have internal predecessors, (10296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:35:06,941 INFO L186 Difference]: Start difference. First operand has 277 places, 244 transitions, 1373 flow. Second operand 51 states and 7282 transitions. [2021-11-09 09:35:06,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 692 transitions, 3558 flow [2021-11-09 09:35:07,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 692 transitions, 3441 flow, removed 7 selfloop flow, removed 9 redundant places. [2021-11-09 09:35:07,294 INFO L242 Difference]: Finished difference. Result has 360 places, 345 transitions, 2136 flow [2021-11-09 09:35:07,294 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=1273, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=51, PETRI_FLOW=2136, PETRI_PLACES=360, PETRI_TRANSITIONS=345} [2021-11-09 09:35:07,295 INFO L334 CegarLoopForPetriNet]: 179 programPoint places, 181 predicate places. [2021-11-09 09:35:07,295 INFO L470 AbstractCegarLoop]: Abstraction has has 360 places, 345 transitions, 2136 flow [2021-11-09 09:35:07,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 135.58333333333334) internal successors, (3254), 24 states have internal predecessors, (3254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:35:07,296 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:35:07,297 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:35:07,328 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-11-09 09:35:07,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:35:07,513 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:35:07,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:35:07,514 INFO L85 PathProgramCache]: Analyzing trace with hash 379933478, now seen corresponding path program 2 times [2021-11-09 09:35:07,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:35:07,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194803810] [2021-11-09 09:35:07,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:35:07,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:35:07,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:35:07,795 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:35:07,795 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:35:07,795 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194803810] [2021-11-09 09:35:07,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194803810] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:35:07,796 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324652941] [2021-11-09 09:35:07,796 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 09:35:07,796 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:35:07,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:35:07,801 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:35:07,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-09 09:35:08,319 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 09:35:08,319 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:35:08,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-09 09:35:08,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:35:09,166 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:35:09,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1324652941] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:35:09,167 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:35:09,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 24 [2021-11-09 09:35:09,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553506017] [2021-11-09 09:35:09,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-09 09:35:09,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:35:09,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-09 09:35:09,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=496, Unknown=0, NotChecked=0, Total=552 [2021-11-09 09:35:09,173 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 198 [2021-11-09 09:35:09,176 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 345 transitions, 2136 flow. Second operand has 24 states, 24 states have (on average 135.58333333333334) internal successors, (3254), 24 states have internal predecessors, (3254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:35:09,177 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:35:09,177 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 198 [2021-11-09 09:35:09,177 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:35:18,690 INFO L129 PetriNetUnfolder]: 5076/25012 cut-off events. [2021-11-09 09:35:18,691 INFO L130 PetriNetUnfolder]: For 68570/68965 co-relation queries the response was YES. [2021-11-09 09:35:19,132 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67073 conditions, 25012 events. 5076/25012 cut-off events. For 68570/68965 co-relation queries the response was YES. Maximal size of possible extension queue 476. Compared 312770 event pairs, 828 based on Foata normal form. 110/23531 useless extension candidates. Maximal degree in co-relation 66979. Up to 5317 conditions per place. [2021-11-09 09:35:19,206 INFO L132 encePairwiseOnDemand]: 169/198 looper letters, 396 selfloop transitions, 130 changer transitions 4/718 dead transitions. [2021-11-09 09:35:19,207 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 718 transitions, 5483 flow [2021-11-09 09:35:19,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-11-09 09:35:19,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2021-11-09 09:35:19,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 8232 transitions. [2021-11-09 09:35:19,217 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7168234064785789 [2021-11-09 09:35:19,218 INFO L72 ComplementDD]: Start complementDD. Operand 58 states and 8232 transitions. [2021-11-09 09:35:19,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 8232 transitions. [2021-11-09 09:35:19,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:35:19,221 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 58 states and 8232 transitions. [2021-11-09 09:35:19,235 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 59 states, 58 states have (on average 141.93103448275863) internal successors, (8232), 58 states have internal predecessors, (8232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:35:19,248 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 59 states, 59 states have (on average 198.0) internal successors, (11682), 59 states have internal predecessors, (11682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:35:19,250 INFO L81 ComplementDD]: Finished complementDD. Result has 59 states, 59 states have (on average 198.0) internal successors, (11682), 59 states have internal predecessors, (11682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:35:19,251 INFO L186 Difference]: Start difference. First operand has 360 places, 345 transitions, 2136 flow. Second operand 58 states and 8232 transitions. [2021-11-09 09:35:19,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 718 transitions, 5483 flow [2021-11-09 09:35:19,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 413 places, 718 transitions, 5391 flow, removed 36 selfloop flow, removed 4 redundant places. [2021-11-09 09:35:19,682 INFO L242 Difference]: Finished difference. Result has 414 places, 370 transitions, 2501 flow [2021-11-09 09:35:19,682 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=2040, PETRI_DIFFERENCE_MINUEND_PLACES=356, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=344, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=58, PETRI_FLOW=2501, PETRI_PLACES=414, PETRI_TRANSITIONS=370} [2021-11-09 09:35:19,683 INFO L334 CegarLoopForPetriNet]: 179 programPoint places, 235 predicate places. [2021-11-09 09:35:19,683 INFO L470 AbstractCegarLoop]: Abstraction has has 414 places, 370 transitions, 2501 flow [2021-11-09 09:35:19,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 135.58333333333334) internal successors, (3254), 24 states have internal predecessors, (3254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:35:19,684 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:35:19,684 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:35:19,723 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-11-09 09:35:19,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:35:19,897 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:35:19,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:35:19,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1946475050, now seen corresponding path program 1 times [2021-11-09 09:35:19,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:35:19,898 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98920672] [2021-11-09 09:35:19,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:35:19,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:35:19,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:35:20,194 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:35:20,194 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:35:20,194 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98920672] [2021-11-09 09:35:20,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98920672] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:35:20,194 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1474594286] [2021-11-09 09:35:20,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:35:20,195 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:35:20,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:35:20,196 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:35:20,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-09 09:35:20,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:35:20,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-09 09:35:20,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:35:21,732 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:35:21,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1474594286] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:35:21,733 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:35:21,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 24 [2021-11-09 09:35:21,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246677754] [2021-11-09 09:35:21,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-09 09:35:21,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:35:21,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-09 09:35:21,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=496, Unknown=0, NotChecked=0, Total=552 [2021-11-09 09:35:21,738 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 198 [2021-11-09 09:35:21,740 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 370 transitions, 2501 flow. Second operand has 24 states, 24 states have (on average 135.58333333333334) internal successors, (3254), 24 states have internal predecessors, (3254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:35:21,740 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:35:21,740 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 198 [2021-11-09 09:35:21,740 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:35:30,646 INFO L129 PetriNetUnfolder]: 5075/25022 cut-off events. [2021-11-09 09:35:30,646 INFO L130 PetriNetUnfolder]: For 71452/71944 co-relation queries the response was YES. [2021-11-09 09:35:31,109 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68515 conditions, 25022 events. 5075/25022 cut-off events. For 71452/71944 co-relation queries the response was YES. Maximal size of possible extension queue 463. Compared 312452 event pairs, 873 based on Foata normal form. 160/23562 useless extension candidates. Maximal degree in co-relation 68420. Up to 5341 conditions per place. [2021-11-09 09:35:31,198 INFO L132 encePairwiseOnDemand]: 171/198 looper letters, 392 selfloop transitions, 127 changer transitions 4/711 dead transitions. [2021-11-09 09:35:31,198 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 711 transitions, 5610 flow [2021-11-09 09:35:31,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-11-09 09:35:31,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2021-11-09 09:35:31,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 7280 transitions. [2021-11-09 09:35:31,211 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7209348385818974 [2021-11-09 09:35:31,212 INFO L72 ComplementDD]: Start complementDD. Operand 51 states and 7280 transitions. [2021-11-09 09:35:31,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 7280 transitions. [2021-11-09 09:35:31,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:35:31,216 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 51 states and 7280 transitions. [2021-11-09 09:35:31,232 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 52 states, 51 states have (on average 142.7450980392157) internal successors, (7280), 51 states have internal predecessors, (7280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:35:31,245 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 52 states, 52 states have (on average 198.0) internal successors, (10296), 52 states have internal predecessors, (10296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:35:31,247 INFO L81 ComplementDD]: Finished complementDD. Result has 52 states, 52 states have (on average 198.0) internal successors, (10296), 52 states have internal predecessors, (10296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:35:31,248 INFO L186 Difference]: Start difference. First operand has 414 places, 370 transitions, 2501 flow. Second operand 51 states and 7280 transitions. [2021-11-09 09:35:31,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 711 transitions, 5610 flow [2021-11-09 09:35:31,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 711 transitions, 5397 flow, removed 29 selfloop flow, removed 40 redundant places. [2021-11-09 09:35:31,792 INFO L242 Difference]: Finished difference. Result has 425 places, 375 transitions, 2592 flow [2021-11-09 09:35:31,792 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=2290, PETRI_DIFFERENCE_MINUEND_PLACES=374, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=370, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=122, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=51, PETRI_FLOW=2592, PETRI_PLACES=425, PETRI_TRANSITIONS=375} [2021-11-09 09:35:31,793 INFO L334 CegarLoopForPetriNet]: 179 programPoint places, 246 predicate places. [2021-11-09 09:35:31,793 INFO L470 AbstractCegarLoop]: Abstraction has has 425 places, 375 transitions, 2592 flow [2021-11-09 09:35:31,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 135.58333333333334) internal successors, (3254), 24 states have internal predecessors, (3254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:35:31,794 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:35:31,794 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:35:31,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-09 09:35:31,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2021-11-09 09:35:31,995 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:35:31,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:35:31,996 INFO L85 PathProgramCache]: Analyzing trace with hash -294806324, now seen corresponding path program 2 times [2021-11-09 09:35:31,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:35:31,996 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733449146] [2021-11-09 09:35:31,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:35:31,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:35:32,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:35:32,331 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:35:32,331 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:35:32,331 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733449146] [2021-11-09 09:35:32,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733449146] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:35:32,332 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [326039949] [2021-11-09 09:35:32,332 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 09:35:32,332 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:35:32,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:35:32,333 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:35:32,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-09 09:35:32,900 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 09:35:32,900 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:35:32,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-09 09:35:32,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:35:33,759 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:35:33,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [326039949] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:35:33,759 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:35:33,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 24 [2021-11-09 09:35:33,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692870140] [2021-11-09 09:35:33,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-09 09:35:33,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:35:33,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-09 09:35:33,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=496, Unknown=0, NotChecked=0, Total=552 [2021-11-09 09:35:33,765 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 198 [2021-11-09 09:35:33,767 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 425 places, 375 transitions, 2592 flow. Second operand has 24 states, 24 states have (on average 135.58333333333334) internal successors, (3254), 24 states have internal predecessors, (3254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:35:33,767 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:35:33,768 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 198 [2021-11-09 09:35:33,768 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:35:43,407 INFO L129 PetriNetUnfolder]: 5061/25454 cut-off events. [2021-11-09 09:35:43,408 INFO L130 PetriNetUnfolder]: For 71792/72226 co-relation queries the response was YES. [2021-11-09 09:35:43,868 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69674 conditions, 25454 events. 5061/25454 cut-off events. For 71792/72226 co-relation queries the response was YES. Maximal size of possible extension queue 459. Compared 320822 event pairs, 846 based on Foata normal form. 159/24021 useless extension candidates. Maximal degree in co-relation 69578. Up to 5321 conditions per place. [2021-11-09 09:35:43,943 INFO L132 encePairwiseOnDemand]: 173/198 looper letters, 400 selfloop transitions, 142 changer transitions 3/733 dead transitions. [2021-11-09 09:35:43,943 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 481 places, 733 transitions, 5879 flow [2021-11-09 09:35:43,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-11-09 09:35:43,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2021-11-09 09:35:43,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 8099 transitions. [2021-11-09 09:35:43,957 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7176147439305334 [2021-11-09 09:35:43,957 INFO L72 ComplementDD]: Start complementDD. Operand 57 states and 8099 transitions. [2021-11-09 09:35:43,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 8099 transitions. [2021-11-09 09:35:43,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:35:43,961 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 57 states and 8099 transitions. [2021-11-09 09:35:43,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 58 states, 57 states have (on average 142.08771929824562) internal successors, (8099), 57 states have internal predecessors, (8099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:35:43,985 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 58 states, 58 states have (on average 198.0) internal successors, (11484), 58 states have internal predecessors, (11484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:35:43,988 INFO L81 ComplementDD]: Finished complementDD. Result has 58 states, 58 states have (on average 198.0) internal successors, (11484), 58 states have internal predecessors, (11484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:35:43,988 INFO L186 Difference]: Start difference. First operand has 425 places, 375 transitions, 2592 flow. Second operand 57 states and 8099 transitions. [2021-11-09 09:35:43,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 481 places, 733 transitions, 5879 flow [2021-11-09 09:35:44,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 440 places, 733 transitions, 5687 flow, removed 3 selfloop flow, removed 41 redundant places. [2021-11-09 09:35:44,433 INFO L242 Difference]: Finished difference. Result has 440 places, 392 transitions, 2883 flow [2021-11-09 09:35:44,434 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=2403, PETRI_DIFFERENCE_MINUEND_PLACES=384, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=374, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=124, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=250, PETRI_DIFFERENCE_SUBTRAHEND_STATES=57, PETRI_FLOW=2883, PETRI_PLACES=440, PETRI_TRANSITIONS=392} [2021-11-09 09:35:44,434 INFO L334 CegarLoopForPetriNet]: 179 programPoint places, 261 predicate places. [2021-11-09 09:35:44,435 INFO L470 AbstractCegarLoop]: Abstraction has has 440 places, 392 transitions, 2883 flow [2021-11-09 09:35:44,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 135.58333333333334) internal successors, (3254), 24 states have internal predecessors, (3254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:35:44,436 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:35:44,436 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:35:44,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-09 09:35:44,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:35:44,638 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:35:44,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:35:44,638 INFO L85 PathProgramCache]: Analyzing trace with hash 453059156, now seen corresponding path program 3 times [2021-11-09 09:35:44,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:35:44,639 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916583599] [2021-11-09 09:35:44,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:35:44,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:35:44,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:35:44,907 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:35:44,908 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:35:44,908 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916583599] [2021-11-09 09:35:44,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916583599] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:35:44,908 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255874069] [2021-11-09 09:35:44,908 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 09:35:44,908 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:35:44,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:35:44,909 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:35:44,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-09 09:35:45,511 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-09 09:35:45,511 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:35:45,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-09 09:35:45,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:35:46,303 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:35:46,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [255874069] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:35:46,304 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:35:46,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 24 [2021-11-09 09:35:46,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283807007] [2021-11-09 09:35:46,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-09 09:35:46,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:35:46,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-09 09:35:46,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=497, Unknown=0, NotChecked=0, Total=552 [2021-11-09 09:35:46,310 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 198 [2021-11-09 09:35:46,313 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 392 transitions, 2883 flow. Second operand has 24 states, 24 states have (on average 135.58333333333334) internal successors, (3254), 24 states have internal predecessors, (3254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:35:46,313 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:35:46,313 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 198 [2021-11-09 09:35:46,313 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:35:55,948 INFO L129 PetriNetUnfolder]: 5077/25747 cut-off events. [2021-11-09 09:35:55,948 INFO L130 PetriNetUnfolder]: For 76018/76616 co-relation queries the response was YES. [2021-11-09 09:35:56,399 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70328 conditions, 25747 events. 5077/25747 cut-off events. For 76018/76616 co-relation queries the response was YES. Maximal size of possible extension queue 460. Compared 325117 event pairs, 898 based on Foata normal form. 191/24314 useless extension candidates. Maximal degree in co-relation 70232. Up to 5783 conditions per place. [2021-11-09 09:35:56,477 INFO L132 encePairwiseOnDemand]: 172/198 looper letters, 379 selfloop transitions, 134 changer transitions 1/702 dead transitions. [2021-11-09 09:35:56,477 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 490 places, 702 transitions, 5723 flow [2021-11-09 09:35:56,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-11-09 09:35:56,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2021-11-09 09:35:56,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 7254 transitions. [2021-11-09 09:35:56,483 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7183600713012478 [2021-11-09 09:35:56,484 INFO L72 ComplementDD]: Start complementDD. Operand 51 states and 7254 transitions. [2021-11-09 09:35:56,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 7254 transitions. [2021-11-09 09:35:56,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:35:56,487 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 51 states and 7254 transitions. [2021-11-09 09:35:56,497 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 52 states, 51 states have (on average 142.23529411764707) internal successors, (7254), 51 states have internal predecessors, (7254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:35:56,508 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 52 states, 52 states have (on average 198.0) internal successors, (10296), 52 states have internal predecessors, (10296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:35:56,510 INFO L81 ComplementDD]: Finished complementDD. Result has 52 states, 52 states have (on average 198.0) internal successors, (10296), 52 states have internal predecessors, (10296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:35:56,511 INFO L186 Difference]: Start difference. First operand has 440 places, 392 transitions, 2883 flow. Second operand 51 states and 7254 transitions. [2021-11-09 09:35:56,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 490 places, 702 transitions, 5723 flow [2021-11-09 09:35:57,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 456 places, 702 transitions, 5503 flow, removed 40 selfloop flow, removed 34 redundant places. [2021-11-09 09:35:57,087 INFO L242 Difference]: Finished difference. Result has 458 places, 398 transitions, 3016 flow [2021-11-09 09:35:57,088 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=2667, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=392, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=128, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=51, PETRI_FLOW=3016, PETRI_PLACES=458, PETRI_TRANSITIONS=398} [2021-11-09 09:35:57,088 INFO L334 CegarLoopForPetriNet]: 179 programPoint places, 279 predicate places. [2021-11-09 09:35:57,088 INFO L470 AbstractCegarLoop]: Abstraction has has 458 places, 398 transitions, 3016 flow [2021-11-09 09:35:57,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 135.58333333333334) internal successors, (3254), 24 states have internal predecessors, (3254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:35:57,089 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:35:57,089 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:35:57,121 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2021-11-09 09:35:57,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2021-11-09 09:35:57,306 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:35:57,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:35:57,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1199462366, now seen corresponding path program 3 times [2021-11-09 09:35:57,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:35:57,306 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698108081] [2021-11-09 09:35:57,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:35:57,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:35:57,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:35:57,623 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:35:57,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:35:57,623 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698108081] [2021-11-09 09:35:57,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698108081] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:35:57,624 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [478267587] [2021-11-09 09:35:57,624 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 09:35:57,624 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:35:57,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:35:57,625 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:35:57,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2232c52-641f-4a5c-bac9-f623badbc3fc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-09 09:35:58,294 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-09 09:35:58,294 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:35:58,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-09 09:35:58,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:35:59,059 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:35:59,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [478267587] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:35:59,060 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:35:59,060 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 24 [2021-11-09 09:35:59,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092535611] [2021-11-09 09:35:59,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-09 09:35:59,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:35:59,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-09 09:35:59,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=497, Unknown=0, NotChecked=0, Total=552 [2021-11-09 09:35:59,064 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 198 [2021-11-09 09:35:59,066 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 458 places, 398 transitions, 3016 flow. Second operand has 24 states, 24 states have (on average 135.58333333333334) internal successors, (3254), 24 states have internal predecessors, (3254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:35:59,066 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:35:59,066 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 198 [2021-11-09 09:35:59,066 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand