./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix046.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72fc8b0-75f8-4ae0-867f-b48c16fe9fea/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72fc8b0-75f8-4ae0-867f-b48c16fe9fea/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72fc8b0-75f8-4ae0-867f-b48c16fe9fea/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72fc8b0-75f8-4ae0-867f-b48c16fe9fea/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix046.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72fc8b0-75f8-4ae0-867f-b48c16fe9fea/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72fc8b0-75f8-4ae0-867f-b48c16fe9fea/bin/uautomizer-GMMbpWq8iD --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 f69f777f524a62a415fc7cacc9442c44e05883e29c36815b4e0d58199826b331 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 22:51:18,728 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 22:51:18,730 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 22:51:18,762 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 22:51:18,763 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 22:51:18,764 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 22:51:18,766 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 22:51:18,768 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 22:51:18,770 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 22:51:18,771 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 22:51:18,772 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 22:51:18,774 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 22:51:18,774 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 22:51:18,776 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 22:51:18,778 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 22:51:18,779 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 22:51:18,780 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 22:51:18,781 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 22:51:18,783 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 22:51:18,786 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 22:51:18,788 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 22:51:18,792 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 22:51:18,794 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 22:51:18,795 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 22:51:18,798 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 22:51:18,799 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 22:51:18,799 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 22:51:18,800 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 22:51:18,801 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 22:51:18,802 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 22:51:18,803 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 22:51:18,804 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 22:51:18,805 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 22:51:18,806 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 22:51:18,816 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 22:51:18,818 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 22:51:18,819 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 22:51:18,819 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 22:51:18,819 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 22:51:18,820 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 22:51:18,821 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 22:51:18,822 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72fc8b0-75f8-4ae0-867f-b48c16fe9fea/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 22:51:18,869 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 22:51:18,869 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 22:51:18,870 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 22:51:18,870 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 22:51:18,878 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 22:51:18,878 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 22:51:18,879 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 22:51:18,879 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 22:51:18,879 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 22:51:18,879 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 22:51:18,880 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 22:51:18,881 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 22:51:18,881 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 22:51:18,881 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 22:51:18,881 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 22:51:18,882 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 22:51:18,882 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 22:51:18,882 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 22:51:18,882 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 22:51:18,882 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 22:51:18,883 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 22:51:18,883 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 22:51:18,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 22:51:18,883 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 22:51:18,883 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 22:51:18,884 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 22:51:18,884 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 22:51:18,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 22:51:18,884 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 22:51:18,888 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 22:51:18,888 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 22:51:18,888 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 22:51:18,888 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_d72fc8b0-75f8-4ae0-867f-b48c16fe9fea/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72fc8b0-75f8-4ae0-867f-b48c16fe9fea/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f69f777f524a62a415fc7cacc9442c44e05883e29c36815b4e0d58199826b331 [2021-10-28 22:51:19,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 22:51:19,177 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 22:51:19,179 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 22:51:19,181 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 22:51:19,181 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 22:51:19,182 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72fc8b0-75f8-4ae0-867f-b48c16fe9fea/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/pthread-wmm/mix046.opt.i [2021-10-28 22:51:19,238 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72fc8b0-75f8-4ae0-867f-b48c16fe9fea/bin/uautomizer-GMMbpWq8iD/data/a63add931/76b8fe9dafb54e3b91240e2335743476/FLAG4bcc4c75a [2021-10-28 22:51:19,820 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 22:51:19,821 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72fc8b0-75f8-4ae0-867f-b48c16fe9fea/sv-benchmarks/c/pthread-wmm/mix046.opt.i [2021-10-28 22:51:19,836 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72fc8b0-75f8-4ae0-867f-b48c16fe9fea/bin/uautomizer-GMMbpWq8iD/data/a63add931/76b8fe9dafb54e3b91240e2335743476/FLAG4bcc4c75a [2021-10-28 22:51:20,053 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72fc8b0-75f8-4ae0-867f-b48c16fe9fea/bin/uautomizer-GMMbpWq8iD/data/a63add931/76b8fe9dafb54e3b91240e2335743476 [2021-10-28 22:51:20,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 22:51:20,057 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 22:51:20,061 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 22:51:20,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 22:51:20,064 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 22:51:20,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:51:20" (1/1) ... [2021-10-28 22:51:20,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@413a9d28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:20, skipping insertion in model container [2021-10-28 22:51:20,068 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:51:20" (1/1) ... [2021-10-28 22:51:20,074 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 22:51:20,136 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 22:51:20,336 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_d72fc8b0-75f8-4ae0-867f-b48c16fe9fea/sv-benchmarks/c/pthread-wmm/mix046.opt.i[944,957] [2021-10-28 22:51:20,561 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:51:20,574 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 22:51:20,590 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_d72fc8b0-75f8-4ae0-867f-b48c16fe9fea/sv-benchmarks/c/pthread-wmm/mix046.opt.i[944,957] [2021-10-28 22:51:20,674 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:51:20,728 INFO L208 MainTranslator]: Completed translation [2021-10-28 22:51:20,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:20 WrapperNode [2021-10-28 22:51:20,729 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 22:51:20,730 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 22:51:20,730 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 22:51:20,731 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 22:51:20,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:20" (1/1) ... [2021-10-28 22:51:20,785 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:20" (1/1) ... [2021-10-28 22:51:20,833 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 22:51:20,841 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 22:51:20,842 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 22:51:20,842 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 22:51:20,851 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:20" (1/1) ... [2021-10-28 22:51:20,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:20" (1/1) ... [2021-10-28 22:51:20,867 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:20" (1/1) ... [2021-10-28 22:51:20,871 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:20" (1/1) ... [2021-10-28 22:51:20,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:20" (1/1) ... [2021-10-28 22:51:20,910 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:20" (1/1) ... [2021-10-28 22:51:20,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:20" (1/1) ... [2021-10-28 22:51:20,917 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 22:51:20,918 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 22:51:20,918 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 22:51:20,927 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 22:51:20,929 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:20" (1/1) ... [2021-10-28 22:51:20,937 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 22:51:20,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72fc8b0-75f8-4ae0-867f-b48c16fe9fea/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:20,974 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72fc8b0-75f8-4ae0-867f-b48c16fe9fea/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:21,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72fc8b0-75f8-4ae0-867f-b48c16fe9fea/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 22:51:21,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 22:51:21,018 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-28 22:51:21,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 22:51:21,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 22:51:21,019 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-10-28 22:51:21,019 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-10-28 22:51:21,019 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-10-28 22:51:21,019 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-10-28 22:51:21,019 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-10-28 22:51:21,020 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-10-28 22:51:21,020 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-10-28 22:51:21,020 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-10-28 22:51:21,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 22:51:21,021 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-28 22:51:21,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 22:51:21,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 22:51:21,023 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-28 22:51:22,857 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 22:51:22,858 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-28 22:51:22,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:51:22 BoogieIcfgContainer [2021-10-28 22:51:22,861 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 22:51:22,863 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 22:51:22,863 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 22:51:22,867 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 22:51:22,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 10:51:20" (1/3) ... [2021-10-28 22:51:22,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55729950 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:51:22, skipping insertion in model container [2021-10-28 22:51:22,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:20" (2/3) ... [2021-10-28 22:51:22,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55729950 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:51:22, skipping insertion in model container [2021-10-28 22:51:22,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:51:22" (3/3) ... [2021-10-28 22:51:22,870 INFO L111 eAbstractionObserver]: Analyzing ICFG mix046.opt.i [2021-10-28 22:51:22,875 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-28 22:51:22,876 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 22:51:22,876 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-28 22:51:22,876 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-28 22:51:22,912 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,912 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,912 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,912 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,913 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,913 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,913 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,914 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,914 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,914 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,914 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,915 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,915 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,915 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,916 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,916 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,916 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,916 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,917 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,917 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,917 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,917 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,918 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,918 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,918 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,919 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,919 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,919 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,919 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,919 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,920 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,920 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,920 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,920 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,921 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,921 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,921 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,921 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,922 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,922 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,922 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,923 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,923 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,923 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,923 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,924 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,924 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,924 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,925 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,925 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,925 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,926 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,926 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,926 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,926 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,927 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,927 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,927 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,927 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,927 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,928 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,928 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,928 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,928 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,929 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,929 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,929 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,930 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,930 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,930 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,930 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,931 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,931 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,931 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,932 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,932 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,932 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,932 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,933 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,933 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,933 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,934 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,934 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,934 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,937 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,938 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,938 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,938 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,939 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,939 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,939 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,939 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,940 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,940 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,942 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,942 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,943 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,943 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,944 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,945 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,945 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,945 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,945 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,946 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,946 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,946 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,947 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,947 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,947 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,947 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,949 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,949 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,949 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,950 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:22,951 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-28 22:51:22,998 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 22:51:23,004 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 [2021-10-28 22:51:23,005 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-10-28 22:51:23,018 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 140 places, 129 transitions, 278 flow [2021-10-28 22:51:23,110 INFO L129 PetriNetUnfolder]: 2/125 cut-off events. [2021-10-28 22:51:23,111 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 22:51:23,115 INFO L84 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 125 events. 2/125 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 0/121 useless extension candidates. Maximal degree in co-relation 86. Up to 2 conditions per place. [2021-10-28 22:51:23,116 INFO L82 GeneralOperation]: Start removeDead. Operand has 140 places, 129 transitions, 278 flow [2021-10-28 22:51:23,125 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 136 places, 125 transitions, 262 flow [2021-10-28 22:51:23,160 INFO L129 PetriNetUnfolder]: 0/89 cut-off events. [2021-10-28 22:51:23,160 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 22:51:23,161 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:51:23,161 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] [2021-10-28 22:51:23,162 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 22:51:23,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:23,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1617521167, now seen corresponding path program 1 times [2021-10-28 22:51:23,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:23,180 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223313168] [2021-10-28 22:51:23,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:23,181 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:23,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:23,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:51:23,628 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:23,629 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223313168] [2021-10-28 22:51:23,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223313168] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:23,630 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:23,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 22:51:23,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310415807] [2021-10-28 22:51:23,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 22:51:23,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:23,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:51:23,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:51:23,656 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 129 [2021-10-28 22:51:23,660 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 125 transitions, 262 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:23,661 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:51:23,661 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 129 [2021-10-28 22:51:23,662 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:51:23,766 INFO L129 PetriNetUnfolder]: 16/249 cut-off events. [2021-10-28 22:51:23,766 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 22:51:23,769 INFO L84 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 249 events. 16/249 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 728 event pairs, 6 based on Foata normal form. 9/247 useless extension candidates. Maximal degree in co-relation 243. Up to 27 conditions per place. [2021-10-28 22:51:23,771 INFO L132 encePairwiseOnDemand]: 124/129 looper letters, 7 selfloop transitions, 2 changer transitions 0/124 dead transitions. [2021-10-28 22:51:23,771 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 124 transitions, 278 flow [2021-10-28 22:51:23,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 22:51:23,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-28 22:51:23,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 371 transitions. [2021-10-28 22:51:23,786 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.958656330749354 [2021-10-28 22:51:23,787 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 371 transitions. [2021-10-28 22:51:23,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 371 transitions. [2021-10-28 22:51:23,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:51:23,792 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 371 transitions. [2021-10-28 22:51:23,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:23,803 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:23,803 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:23,805 INFO L186 Difference]: Start difference. First operand has 136 places, 125 transitions, 262 flow. Second operand 3 states and 371 transitions. [2021-10-28 22:51:23,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 124 transitions, 278 flow [2021-10-28 22:51:23,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 124 transitions, 274 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-10-28 22:51:23,814 INFO L242 Difference]: Finished difference. Result has 132 places, 121 transitions, 254 flow [2021-10-28 22:51:23,816 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=254, PETRI_PLACES=132, PETRI_TRANSITIONS=121} [2021-10-28 22:51:23,817 INFO L334 CegarLoopForPetriNet]: 136 programPoint places, -4 predicate places. [2021-10-28 22:51:23,817 INFO L470 AbstractCegarLoop]: Abstraction has has 132 places, 121 transitions, 254 flow [2021-10-28 22:51:23,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:23,818 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:51:23,818 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] [2021-10-28 22:51:23,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 22:51:23,818 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 22:51:23,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:23,819 INFO L85 PathProgramCache]: Analyzing trace with hash -2002647720, now seen corresponding path program 1 times [2021-10-28 22:51:23,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:23,820 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644279521] [2021-10-28 22:51:23,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:23,820 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:23,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:24,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:51:24,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:24,113 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644279521] [2021-10-28 22:51:24,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644279521] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:24,114 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:24,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 22:51:24,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134821723] [2021-10-28 22:51:24,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 22:51:24,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:24,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 22:51:24,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 22:51:24,118 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 129 [2021-10-28 22:51:24,120 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 121 transitions, 254 flow. Second operand has 6 states, 6 states have (on average 117.16666666666667) internal successors, (703), 6 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:24,120 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:51:24,120 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 129 [2021-10-28 22:51:24,120 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:51:24,328 INFO L129 PetriNetUnfolder]: 30/295 cut-off events. [2021-10-28 22:51:24,328 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 22:51:24,331 INFO L84 FinitePrefix]: Finished finitePrefix Result has 381 conditions, 295 events. 30/295 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1090 event pairs, 6 based on Foata normal form. 0/289 useless extension candidates. Maximal degree in co-relation 332. Up to 36 conditions per place. [2021-10-28 22:51:24,332 INFO L132 encePairwiseOnDemand]: 122/129 looper letters, 8 selfloop transitions, 3 changer transitions 33/144 dead transitions. [2021-10-28 22:51:24,332 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 144 transitions, 366 flow [2021-10-28 22:51:24,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 22:51:24,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-28 22:51:24,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1079 transitions. [2021-10-28 22:51:24,338 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9293712316968131 [2021-10-28 22:51:24,338 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1079 transitions. [2021-10-28 22:51:24,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1079 transitions. [2021-10-28 22:51:24,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:51:24,340 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1079 transitions. [2021-10-28 22:51:24,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 119.88888888888889) internal successors, (1079), 9 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:24,348 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 129.0) internal successors, (1290), 10 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:24,349 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 129.0) internal successors, (1290), 10 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:24,349 INFO L186 Difference]: Start difference. First operand has 132 places, 121 transitions, 254 flow. Second operand 9 states and 1079 transitions. [2021-10-28 22:51:24,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 144 transitions, 366 flow [2021-10-28 22:51:24,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 144 transitions, 362 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-28 22:51:24,360 INFO L242 Difference]: Finished difference. Result has 145 places, 111 transitions, 269 flow [2021-10-28 22:51:24,364 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=269, PETRI_PLACES=145, PETRI_TRANSITIONS=111} [2021-10-28 22:51:24,365 INFO L334 CegarLoopForPetriNet]: 136 programPoint places, 9 predicate places. [2021-10-28 22:51:24,365 INFO L470 AbstractCegarLoop]: Abstraction has has 145 places, 111 transitions, 269 flow [2021-10-28 22:51:24,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 117.16666666666667) internal successors, (703), 6 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:24,366 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:51:24,366 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] [2021-10-28 22:51:24,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 22:51:24,367 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 22:51:24,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:24,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1478180105, now seen corresponding path program 1 times [2021-10-28 22:51:24,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:24,368 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479558785] [2021-10-28 22:51:24,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:24,368 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:24,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:24,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:51:24,648 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:24,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479558785] [2021-10-28 22:51:24,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479558785] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:24,648 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:24,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 22:51:24,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954321385] [2021-10-28 22:51:24,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 22:51:24,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:24,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 22:51:24,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 22:51:24,652 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 129 [2021-10-28 22:51:24,653 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 111 transitions, 269 flow. Second operand has 6 states, 6 states have (on average 118.16666666666667) internal successors, (709), 6 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:24,653 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:51:24,654 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 129 [2021-10-28 22:51:24,654 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:51:24,823 INFO L129 PetriNetUnfolder]: 26/226 cut-off events. [2021-10-28 22:51:24,823 INFO L130 PetriNetUnfolder]: For 157/157 co-relation queries the response was YES. [2021-10-28 22:51:24,826 INFO L84 FinitePrefix]: Finished finitePrefix Result has 419 conditions, 226 events. 26/226 cut-off events. For 157/157 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 718 event pairs, 8 based on Foata normal form. 6/226 useless extension candidates. Maximal degree in co-relation 384. Up to 28 conditions per place. [2021-10-28 22:51:24,827 INFO L132 encePairwiseOnDemand]: 123/129 looper letters, 6 selfloop transitions, 2 changer transitions 10/121 dead transitions. [2021-10-28 22:51:24,828 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 121 transitions, 343 flow [2021-10-28 22:51:24,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 22:51:24,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-28 22:51:24,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1073 transitions. [2021-10-28 22:51:24,833 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9242032730404823 [2021-10-28 22:51:24,833 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1073 transitions. [2021-10-28 22:51:24,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1073 transitions. [2021-10-28 22:51:24,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:51:24,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1073 transitions. [2021-10-28 22:51:24,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 119.22222222222223) internal successors, (1073), 9 states have internal predecessors, (1073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:24,841 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 129.0) internal successors, (1290), 10 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:24,842 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 129.0) internal successors, (1290), 10 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:24,843 INFO L186 Difference]: Start difference. First operand has 145 places, 111 transitions, 269 flow. Second operand 9 states and 1073 transitions. [2021-10-28 22:51:24,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 121 transitions, 343 flow [2021-10-28 22:51:24,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 121 transitions, 326 flow, removed 7 selfloop flow, removed 4 redundant places. [2021-10-28 22:51:24,854 INFO L242 Difference]: Finished difference. Result has 138 places, 111 transitions, 280 flow [2021-10-28 22:51:24,855 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=280, PETRI_PLACES=138, PETRI_TRANSITIONS=111} [2021-10-28 22:51:24,855 INFO L334 CegarLoopForPetriNet]: 136 programPoint places, 2 predicate places. [2021-10-28 22:51:24,855 INFO L470 AbstractCegarLoop]: Abstraction has has 138 places, 111 transitions, 280 flow [2021-10-28 22:51:24,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 118.16666666666667) internal successors, (709), 6 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:24,856 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:51:24,857 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] [2021-10-28 22:51:24,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 22:51:24,857 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 22:51:24,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:24,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1625319940, now seen corresponding path program 1 times [2021-10-28 22:51:24,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:24,859 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296617111] [2021-10-28 22:51:24,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:24,860 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:24,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:25,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:51:25,221 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:25,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296617111] [2021-10-28 22:51:25,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296617111] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:25,222 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:25,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-28 22:51:25,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673769866] [2021-10-28 22:51:25,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 22:51:25,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:25,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 22:51:25,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-28 22:51:25,233 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 129 [2021-10-28 22:51:25,236 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 111 transitions, 280 flow. Second operand has 9 states, 9 states have (on average 110.33333333333333) internal successors, (993), 9 states have internal predecessors, (993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:25,236 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:51:25,236 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 129 [2021-10-28 22:51:25,237 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:51:25,640 INFO L129 PetriNetUnfolder]: 173/506 cut-off events. [2021-10-28 22:51:25,641 INFO L130 PetriNetUnfolder]: For 584/585 co-relation queries the response was YES. [2021-10-28 22:51:25,645 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1212 conditions, 506 events. 173/506 cut-off events. For 584/585 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2467 event pairs, 57 based on Foata normal form. 14/497 useless extension candidates. Maximal degree in co-relation 1144. Up to 162 conditions per place. [2021-10-28 22:51:25,649 INFO L132 encePairwiseOnDemand]: 118/129 looper letters, 13 selfloop transitions, 8 changer transitions 22/139 dead transitions. [2021-10-28 22:51:25,649 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 139 transitions, 450 flow [2021-10-28 22:51:25,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 22:51:25,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-28 22:51:25,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1462 transitions. [2021-10-28 22:51:25,655 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8717948717948718 [2021-10-28 22:51:25,655 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1462 transitions. [2021-10-28 22:51:25,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1462 transitions. [2021-10-28 22:51:25,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:51:25,657 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1462 transitions. [2021-10-28 22:51:25,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 112.46153846153847) internal successors, (1462), 13 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:25,665 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 129.0) internal successors, (1806), 14 states have internal predecessors, (1806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:25,667 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 129.0) internal successors, (1806), 14 states have internal predecessors, (1806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:25,667 INFO L186 Difference]: Start difference. First operand has 138 places, 111 transitions, 280 flow. Second operand 13 states and 1462 transitions. [2021-10-28 22:51:25,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 139 transitions, 450 flow [2021-10-28 22:51:25,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 139 transitions, 418 flow, removed 14 selfloop flow, removed 8 redundant places. [2021-10-28 22:51:25,674 INFO L242 Difference]: Finished difference. Result has 144 places, 115 transitions, 320 flow [2021-10-28 22:51:25,674 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=320, PETRI_PLACES=144, PETRI_TRANSITIONS=115} [2021-10-28 22:51:25,675 INFO L334 CegarLoopForPetriNet]: 136 programPoint places, 8 predicate places. [2021-10-28 22:51:25,675 INFO L470 AbstractCegarLoop]: Abstraction has has 144 places, 115 transitions, 320 flow [2021-10-28 22:51:25,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 110.33333333333333) internal successors, (993), 9 states have internal predecessors, (993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:25,676 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:51:25,676 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] [2021-10-28 22:51:25,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 22:51:25,677 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 22:51:25,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:25,677 INFO L85 PathProgramCache]: Analyzing trace with hash 621544466, now seen corresponding path program 1 times [2021-10-28 22:51:25,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:25,678 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470566183] [2021-10-28 22:51:25,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:25,678 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:25,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:25,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:51:25,964 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:25,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470566183] [2021-10-28 22:51:25,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470566183] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:25,965 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:25,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-28 22:51:25,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830791410] [2021-10-28 22:51:25,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 22:51:25,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:25,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 22:51:25,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-10-28 22:51:25,969 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 129 [2021-10-28 22:51:25,971 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 115 transitions, 320 flow. Second operand has 10 states, 10 states have (on average 110.3) internal successors, (1103), 10 states have internal predecessors, (1103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:25,971 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:51:25,971 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 129 [2021-10-28 22:51:25,972 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:51:26,364 INFO L129 PetriNetUnfolder]: 148/452 cut-off events. [2021-10-28 22:51:26,365 INFO L130 PetriNetUnfolder]: For 852/864 co-relation queries the response was YES. [2021-10-28 22:51:26,370 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1297 conditions, 452 events. 148/452 cut-off events. For 852/864 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2048 event pairs, 31 based on Foata normal form. 9/445 useless extension candidates. Maximal degree in co-relation 1224. Up to 160 conditions per place. [2021-10-28 22:51:26,378 INFO L132 encePairwiseOnDemand]: 118/129 looper letters, 16 selfloop transitions, 11 changer transitions 10/133 dead transitions. [2021-10-28 22:51:26,378 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 133 transitions, 482 flow [2021-10-28 22:51:26,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 22:51:26,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-28 22:51:26,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1016 transitions. [2021-10-28 22:51:26,382 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8751076658053403 [2021-10-28 22:51:26,382 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1016 transitions. [2021-10-28 22:51:26,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1016 transitions. [2021-10-28 22:51:26,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:51:26,384 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1016 transitions. [2021-10-28 22:51:26,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 112.88888888888889) internal successors, (1016), 9 states have internal predecessors, (1016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:26,389 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 129.0) internal successors, (1290), 10 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:26,390 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 129.0) internal successors, (1290), 10 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:26,390 INFO L186 Difference]: Start difference. First operand has 144 places, 115 transitions, 320 flow. Second operand 9 states and 1016 transitions. [2021-10-28 22:51:26,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 133 transitions, 482 flow [2021-10-28 22:51:26,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 133 transitions, 466 flow, removed 5 selfloop flow, removed 6 redundant places. [2021-10-28 22:51:26,397 INFO L242 Difference]: Finished difference. Result has 145 places, 121 transitions, 378 flow [2021-10-28 22:51:26,397 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=378, PETRI_PLACES=145, PETRI_TRANSITIONS=121} [2021-10-28 22:51:26,398 INFO L334 CegarLoopForPetriNet]: 136 programPoint places, 9 predicate places. [2021-10-28 22:51:26,398 INFO L470 AbstractCegarLoop]: Abstraction has has 145 places, 121 transitions, 378 flow [2021-10-28 22:51:26,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 110.3) internal successors, (1103), 10 states have internal predecessors, (1103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:26,399 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:51:26,399 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] [2021-10-28 22:51:26,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 22:51:26,399 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 22:51:26,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:26,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1429895762, now seen corresponding path program 2 times [2021-10-28 22:51:26,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:26,400 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801695729] [2021-10-28 22:51:26,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:26,401 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:26,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:26,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:51:26,653 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:26,654 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801695729] [2021-10-28 22:51:26,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801695729] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:26,654 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:26,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-28 22:51:26,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150917686] [2021-10-28 22:51:26,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 22:51:26,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:26,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 22:51:26,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-10-28 22:51:26,669 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 129 [2021-10-28 22:51:26,671 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 121 transitions, 378 flow. Second operand has 10 states, 10 states have (on average 110.3) internal successors, (1103), 10 states have internal predecessors, (1103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:26,671 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:51:26,671 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 129 [2021-10-28 22:51:26,675 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:51:27,081 INFO L129 PetriNetUnfolder]: 149/467 cut-off events. [2021-10-28 22:51:27,082 INFO L130 PetriNetUnfolder]: For 1235/1336 co-relation queries the response was YES. [2021-10-28 22:51:27,087 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1557 conditions, 467 events. 149/467 cut-off events. For 1235/1336 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2202 event pairs, 21 based on Foata normal form. 19/470 useless extension candidates. Maximal degree in co-relation 1482. Up to 162 conditions per place. [2021-10-28 22:51:27,092 INFO L132 encePairwiseOnDemand]: 118/129 looper letters, 17 selfloop transitions, 12 changer transitions 19/144 dead transitions. [2021-10-28 22:51:27,092 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 144 transitions, 658 flow [2021-10-28 22:51:27,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 22:51:27,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-10-28 22:51:27,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1353 transitions. [2021-10-28 22:51:27,098 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.874031007751938 [2021-10-28 22:51:27,098 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1353 transitions. [2021-10-28 22:51:27,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1353 transitions. [2021-10-28 22:51:27,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:51:27,099 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1353 transitions. [2021-10-28 22:51:27,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 112.75) internal successors, (1353), 12 states have internal predecessors, (1353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:27,109 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 129.0) internal successors, (1677), 13 states have internal predecessors, (1677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:27,110 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 129.0) internal successors, (1677), 13 states have internal predecessors, (1677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:27,110 INFO L186 Difference]: Start difference. First operand has 145 places, 121 transitions, 378 flow. Second operand 12 states and 1353 transitions. [2021-10-28 22:51:27,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 144 transitions, 658 flow [2021-10-28 22:51:27,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 144 transitions, 626 flow, removed 12 selfloop flow, removed 5 redundant places. [2021-10-28 22:51:27,119 INFO L242 Difference]: Finished difference. Result has 155 places, 123 transitions, 431 flow [2021-10-28 22:51:27,119 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=431, PETRI_PLACES=155, PETRI_TRANSITIONS=123} [2021-10-28 22:51:27,120 INFO L334 CegarLoopForPetriNet]: 136 programPoint places, 19 predicate places. [2021-10-28 22:51:27,120 INFO L470 AbstractCegarLoop]: Abstraction has has 155 places, 123 transitions, 431 flow [2021-10-28 22:51:27,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 110.3) internal successors, (1103), 10 states have internal predecessors, (1103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:27,121 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:51:27,121 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] [2021-10-28 22:51:27,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 22:51:27,122 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 22:51:27,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:27,123 INFO L85 PathProgramCache]: Analyzing trace with hash 33181406, now seen corresponding path program 3 times [2021-10-28 22:51:27,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:27,123 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078214874] [2021-10-28 22:51:27,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:27,123 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:27,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:27,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:51:27,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:27,402 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078214874] [2021-10-28 22:51:27,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078214874] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:27,403 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:27,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-10-28 22:51:27,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676476146] [2021-10-28 22:51:27,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 22:51:27,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:27,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 22:51:27,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-10-28 22:51:27,412 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 129 [2021-10-28 22:51:27,415 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 123 transitions, 431 flow. Second operand has 11 states, 11 states have (on average 109.27272727272727) internal successors, (1202), 11 states have internal predecessors, (1202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:27,415 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:51:27,415 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 129 [2021-10-28 22:51:27,416 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:51:27,961 INFO L129 PetriNetUnfolder]: 149/493 cut-off events. [2021-10-28 22:51:27,961 INFO L130 PetriNetUnfolder]: For 2841/2952 co-relation queries the response was YES. [2021-10-28 22:51:27,968 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2045 conditions, 493 events. 149/493 cut-off events. For 2841/2952 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2413 event pairs, 21 based on Foata normal form. 19/496 useless extension candidates. Maximal degree in co-relation 1964. Up to 164 conditions per place. [2021-10-28 22:51:27,974 INFO L132 encePairwiseOnDemand]: 118/129 looper letters, 17 selfloop transitions, 16 changer transitions 19/147 dead transitions. [2021-10-28 22:51:27,974 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 147 transitions, 856 flow [2021-10-28 22:51:27,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 22:51:27,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-28 22:51:27,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1449 transitions. [2021-10-28 22:51:27,979 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8640429338103757 [2021-10-28 22:51:27,980 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1449 transitions. [2021-10-28 22:51:27,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1449 transitions. [2021-10-28 22:51:27,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:51:27,981 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1449 transitions. [2021-10-28 22:51:27,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 111.46153846153847) internal successors, (1449), 13 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:27,989 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 129.0) internal successors, (1806), 14 states have internal predecessors, (1806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:27,990 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 129.0) internal successors, (1806), 14 states have internal predecessors, (1806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:27,991 INFO L186 Difference]: Start difference. First operand has 155 places, 123 transitions, 431 flow. Second operand 13 states and 1449 transitions. [2021-10-28 22:51:27,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 147 transitions, 856 flow [2021-10-28 22:51:27,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 147 transitions, 811 flow, removed 12 selfloop flow, removed 7 redundant places. [2021-10-28 22:51:28,001 INFO L242 Difference]: Finished difference. Result has 161 places, 127 transitions, 513 flow [2021-10-28 22:51:28,001 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=513, PETRI_PLACES=161, PETRI_TRANSITIONS=127} [2021-10-28 22:51:28,001 INFO L334 CegarLoopForPetriNet]: 136 programPoint places, 25 predicate places. [2021-10-28 22:51:28,002 INFO L470 AbstractCegarLoop]: Abstraction has has 161 places, 127 transitions, 513 flow [2021-10-28 22:51:28,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.27272727272727) internal successors, (1202), 11 states have internal predecessors, (1202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:28,002 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:51:28,003 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] [2021-10-28 22:51:28,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-28 22:51:28,003 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 22:51:28,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:28,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1856066836, now seen corresponding path program 4 times [2021-10-28 22:51:28,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:28,004 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888371123] [2021-10-28 22:51:28,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:28,004 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:28,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:28,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:51:28,206 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:28,207 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888371123] [2021-10-28 22:51:28,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888371123] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:28,207 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:28,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-28 22:51:28,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605121148] [2021-10-28 22:51:28,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 22:51:28,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:28,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 22:51:28,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-28 22:51:28,211 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 129 [2021-10-28 22:51:28,212 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 127 transitions, 513 flow. Second operand has 10 states, 10 states have (on average 110.3) internal successors, (1103), 10 states have internal predecessors, (1103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:28,212 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:51:28,212 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 129 [2021-10-28 22:51:28,212 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:51:28,571 INFO L129 PetriNetUnfolder]: 166/505 cut-off events. [2021-10-28 22:51:28,572 INFO L130 PetriNetUnfolder]: For 5711/5842 co-relation queries the response was YES. [2021-10-28 22:51:28,579 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2586 conditions, 505 events. 166/505 cut-off events. For 5711/5842 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2463 event pairs, 18 based on Foata normal form. 17/507 useless extension candidates. Maximal degree in co-relation 2501. Up to 173 conditions per place. [2021-10-28 22:51:28,586 INFO L132 encePairwiseOnDemand]: 118/129 looper letters, 28 selfloop transitions, 11 changer transitions 10/145 dead transitions. [2021-10-28 22:51:28,587 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 145 transitions, 877 flow [2021-10-28 22:51:28,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 22:51:28,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-28 22:51:28,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1017 transitions. [2021-10-28 22:51:28,591 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.875968992248062 [2021-10-28 22:51:28,591 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1017 transitions. [2021-10-28 22:51:28,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1017 transitions. [2021-10-28 22:51:28,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:51:28,592 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1017 transitions. [2021-10-28 22:51:28,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 113.0) internal successors, (1017), 9 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:28,598 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 129.0) internal successors, (1290), 10 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:28,599 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 129.0) internal successors, (1290), 10 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:28,599 INFO L186 Difference]: Start difference. First operand has 161 places, 127 transitions, 513 flow. Second operand 9 states and 1017 transitions. [2021-10-28 22:51:28,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 145 transitions, 877 flow [2021-10-28 22:51:28,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 145 transitions, 732 flow, removed 71 selfloop flow, removed 11 redundant places. [2021-10-28 22:51:28,616 INFO L242 Difference]: Finished difference. Result has 156 places, 130 transitions, 525 flow [2021-10-28 22:51:28,616 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=446, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=525, PETRI_PLACES=156, PETRI_TRANSITIONS=130} [2021-10-28 22:51:28,616 INFO L334 CegarLoopForPetriNet]: 136 programPoint places, 20 predicate places. [2021-10-28 22:51:28,617 INFO L470 AbstractCegarLoop]: Abstraction has has 156 places, 130 transitions, 525 flow [2021-10-28 22:51:28,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 110.3) internal successors, (1103), 10 states have internal predecessors, (1103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:28,618 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:51:28,618 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] [2021-10-28 22:51:28,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-28 22:51:28,619 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 22:51:28,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:28,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1040872970, now seen corresponding path program 5 times [2021-10-28 22:51:28,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:28,620 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726802168] [2021-10-28 22:51:28,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:28,621 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:28,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:28,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:51:28,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:28,849 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726802168] [2021-10-28 22:51:28,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726802168] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:28,850 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:28,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-28 22:51:28,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12547666] [2021-10-28 22:51:28,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 22:51:28,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:28,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 22:51:28,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-10-28 22:51:28,854 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 129 [2021-10-28 22:51:28,855 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 130 transitions, 525 flow. Second operand has 10 states, 10 states have (on average 109.4) internal successors, (1094), 10 states have internal predecessors, (1094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:28,855 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:51:28,855 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 129 [2021-10-28 22:51:28,856 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:51:29,279 INFO L129 PetriNetUnfolder]: 150/499 cut-off events. [2021-10-28 22:51:29,279 INFO L130 PetriNetUnfolder]: For 3186/3329 co-relation queries the response was YES. [2021-10-28 22:51:29,285 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2227 conditions, 499 events. 150/499 cut-off events. For 3186/3329 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2486 event pairs, 16 based on Foata normal form. 26/510 useless extension candidates. Maximal degree in co-relation 2145. Up to 143 conditions per place. [2021-10-28 22:51:29,291 INFO L132 encePairwiseOnDemand]: 119/129 looper letters, 30 selfloop transitions, 12 changer transitions 19/156 dead transitions. [2021-10-28 22:51:29,292 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 156 transitions, 985 flow [2021-10-28 22:51:29,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 22:51:29,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-10-28 22:51:29,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1343 transitions. [2021-10-28 22:51:29,296 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8675710594315246 [2021-10-28 22:51:29,297 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1343 transitions. [2021-10-28 22:51:29,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1343 transitions. [2021-10-28 22:51:29,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:51:29,298 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1343 transitions. [2021-10-28 22:51:29,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 111.91666666666667) internal successors, (1343), 12 states have internal predecessors, (1343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:29,306 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 129.0) internal successors, (1677), 13 states have internal predecessors, (1677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:29,307 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 129.0) internal successors, (1677), 13 states have internal predecessors, (1677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:29,307 INFO L186 Difference]: Start difference. First operand has 156 places, 130 transitions, 525 flow. Second operand 12 states and 1343 transitions. [2021-10-28 22:51:29,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 156 transitions, 985 flow [2021-10-28 22:51:29,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 156 transitions, 937 flow, removed 20 selfloop flow, removed 6 redundant places. [2021-10-28 22:51:29,324 INFO L242 Difference]: Finished difference. Result has 165 places, 132 transitions, 587 flow [2021-10-28 22:51:29,325 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=491, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=587, PETRI_PLACES=165, PETRI_TRANSITIONS=132} [2021-10-28 22:51:29,325 INFO L334 CegarLoopForPetriNet]: 136 programPoint places, 29 predicate places. [2021-10-28 22:51:29,325 INFO L470 AbstractCegarLoop]: Abstraction has has 165 places, 132 transitions, 587 flow [2021-10-28 22:51:29,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 109.4) internal successors, (1094), 10 states have internal predecessors, (1094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:29,326 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:51:29,326 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] [2021-10-28 22:51:29,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-28 22:51:29,327 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 22:51:29,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:29,328 INFO L85 PathProgramCache]: Analyzing trace with hash -688106119, now seen corresponding path program 1 times [2021-10-28 22:51:29,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:29,328 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430351640] [2021-10-28 22:51:29,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:29,328 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:29,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:29,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:51:29,648 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:29,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430351640] [2021-10-28 22:51:29,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430351640] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:29,649 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:29,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-10-28 22:51:29,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027989075] [2021-10-28 22:51:29,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 22:51:29,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:29,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 22:51:29,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-10-28 22:51:29,652 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 129 [2021-10-28 22:51:29,654 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 132 transitions, 587 flow. Second operand has 11 states, 11 states have (on average 109.36363636363636) internal successors, (1203), 11 states have internal predecessors, (1203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:29,654 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:51:29,654 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 129 [2021-10-28 22:51:29,654 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:51:30,167 INFO L129 PetriNetUnfolder]: 117/419 cut-off events. [2021-10-28 22:51:30,168 INFO L130 PetriNetUnfolder]: For 3728/3895 co-relation queries the response was YES. [2021-10-28 22:51:30,173 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2008 conditions, 419 events. 117/419 cut-off events. For 3728/3895 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1912 event pairs, 5 based on Foata normal form. 48/453 useless extension candidates. Maximal degree in co-relation 1922. Up to 139 conditions per place. [2021-10-28 22:51:30,180 INFO L132 encePairwiseOnDemand]: 117/129 looper letters, 23 selfloop transitions, 22 changer transitions 10/150 dead transitions. [2021-10-28 22:51:30,180 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 150 transitions, 919 flow [2021-10-28 22:51:30,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 22:51:30,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-10-28 22:51:30,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1666 transitions. [2021-10-28 22:51:30,186 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8609819121447029 [2021-10-28 22:51:30,187 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1666 transitions. [2021-10-28 22:51:30,187 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1666 transitions. [2021-10-28 22:51:30,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:51:30,189 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1666 transitions. [2021-10-28 22:51:30,193 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 111.06666666666666) internal successors, (1666), 15 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:30,198 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 129.0) internal successors, (2064), 16 states have internal predecessors, (2064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:30,200 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 129.0) internal successors, (2064), 16 states have internal predecessors, (2064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:30,200 INFO L186 Difference]: Start difference. First operand has 165 places, 132 transitions, 587 flow. Second operand 15 states and 1666 transitions. [2021-10-28 22:51:30,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 150 transitions, 919 flow [2021-10-28 22:51:30,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 150 transitions, 810 flow, removed 46 selfloop flow, removed 10 redundant places. [2021-10-28 22:51:30,214 INFO L242 Difference]: Finished difference. Result has 170 places, 133 transitions, 626 flow [2021-10-28 22:51:30,215 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=626, PETRI_PLACES=170, PETRI_TRANSITIONS=133} [2021-10-28 22:51:30,215 INFO L334 CegarLoopForPetriNet]: 136 programPoint places, 34 predicate places. [2021-10-28 22:51:30,216 INFO L470 AbstractCegarLoop]: Abstraction has has 170 places, 133 transitions, 626 flow [2021-10-28 22:51:30,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.36363636363636) internal successors, (1203), 11 states have internal predecessors, (1203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:30,217 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:51:30,217 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, 1, 1, 1, 1, 1, 1] [2021-10-28 22:51:30,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-28 22:51:30,217 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 22:51:30,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:30,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1543195253, now seen corresponding path program 2 times [2021-10-28 22:51:30,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:30,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756779765] [2021-10-28 22:51:30,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:30,219 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:30,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:30,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:51:30,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:30,454 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756779765] [2021-10-28 22:51:30,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756779765] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:30,454 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:30,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-10-28 22:51:30,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966926243] [2021-10-28 22:51:30,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 22:51:30,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:30,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 22:51:30,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-10-28 22:51:30,457 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 129 [2021-10-28 22:51:30,459 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 133 transitions, 626 flow. Second operand has 11 states, 11 states have (on average 108.45454545454545) internal successors, (1193), 11 states have internal predecessors, (1193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:30,459 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:51:30,459 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 129 [2021-10-28 22:51:30,459 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:51:30,915 INFO L129 PetriNetUnfolder]: 120/447 cut-off events. [2021-10-28 22:51:30,915 INFO L130 PetriNetUnfolder]: For 4091/4322 co-relation queries the response was YES. [2021-10-28 22:51:30,921 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2133 conditions, 447 events. 120/447 cut-off events. For 4091/4322 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2187 event pairs, 14 based on Foata normal form. 36/466 useless extension candidates. Maximal degree in co-relation 2044. Up to 158 conditions per place. [2021-10-28 22:51:30,928 INFO L132 encePairwiseOnDemand]: 118/129 looper letters, 31 selfloop transitions, 14 changer transitions 10/149 dead transitions. [2021-10-28 22:51:30,928 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 149 transitions, 952 flow [2021-10-28 22:51:30,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 22:51:30,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-10-28 22:51:30,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1324 transitions. [2021-10-28 22:51:30,933 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8552971576227391 [2021-10-28 22:51:30,933 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1324 transitions. [2021-10-28 22:51:30,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1324 transitions. [2021-10-28 22:51:30,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:51:30,934 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1324 transitions. [2021-10-28 22:51:30,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 110.33333333333333) internal successors, (1324), 12 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:30,941 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 129.0) internal successors, (1677), 13 states have internal predecessors, (1677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:30,942 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 129.0) internal successors, (1677), 13 states have internal predecessors, (1677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:30,942 INFO L186 Difference]: Start difference. First operand has 170 places, 133 transitions, 626 flow. Second operand 12 states and 1324 transitions. [2021-10-28 22:51:30,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 149 transitions, 952 flow [2021-10-28 22:51:30,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 149 transitions, 831 flow, removed 48 selfloop flow, removed 13 redundant places. [2021-10-28 22:51:30,960 INFO L242 Difference]: Finished difference. Result has 169 places, 134 transitions, 641 flow [2021-10-28 22:51:30,961 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=567, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=641, PETRI_PLACES=169, PETRI_TRANSITIONS=134} [2021-10-28 22:51:30,961 INFO L334 CegarLoopForPetriNet]: 136 programPoint places, 33 predicate places. [2021-10-28 22:51:30,961 INFO L470 AbstractCegarLoop]: Abstraction has has 169 places, 134 transitions, 641 flow [2021-10-28 22:51:30,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 108.45454545454545) internal successors, (1193), 11 states have internal predecessors, (1193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:30,963 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:51:30,963 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] [2021-10-28 22:51:30,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-28 22:51:30,964 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 22:51:30,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:30,964 INFO L85 PathProgramCache]: Analyzing trace with hash 502650425, now seen corresponding path program 3 times [2021-10-28 22:51:30,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:30,964 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601042372] [2021-10-28 22:51:30,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:30,965 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:31,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:31,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:51:31,362 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:31,363 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601042372] [2021-10-28 22:51:31,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601042372] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:31,363 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:31,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-10-28 22:51:31,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427364743] [2021-10-28 22:51:31,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-28 22:51:31,364 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:31,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 22:51:31,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-10-28 22:51:31,367 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 129 [2021-10-28 22:51:31,369 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 134 transitions, 641 flow. Second operand has 13 states, 13 states have (on average 106.38461538461539) internal successors, (1383), 13 states have internal predecessors, (1383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:31,369 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:51:31,370 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 129 [2021-10-28 22:51:31,370 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:51:31,886 INFO L129 PetriNetUnfolder]: 123/466 cut-off events. [2021-10-28 22:51:31,886 INFO L130 PetriNetUnfolder]: For 4223/4460 co-relation queries the response was YES. [2021-10-28 22:51:31,893 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2197 conditions, 466 events. 123/466 cut-off events. For 4223/4460 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2360 event pairs, 14 based on Foata normal form. 37/487 useless extension candidates. Maximal degree in co-relation 2107. Up to 170 conditions per place. [2021-10-28 22:51:31,900 INFO L132 encePairwiseOnDemand]: 117/129 looper letters, 29 selfloop transitions, 16 changer transitions 10/147 dead transitions. [2021-10-28 22:51:31,900 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 147 transitions, 943 flow [2021-10-28 22:51:31,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 22:51:31,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-10-28 22:51:31,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1509 transitions. [2021-10-28 22:51:31,907 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8355481727574751 [2021-10-28 22:51:31,907 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1509 transitions. [2021-10-28 22:51:31,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1509 transitions. [2021-10-28 22:51:31,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:51:31,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1509 transitions. [2021-10-28 22:51:31,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 107.78571428571429) internal successors, (1509), 14 states have internal predecessors, (1509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:31,917 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 129.0) internal successors, (1935), 15 states have internal predecessors, (1935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:31,918 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 129.0) internal successors, (1935), 15 states have internal predecessors, (1935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:31,918 INFO L186 Difference]: Start difference. First operand has 169 places, 134 transitions, 641 flow. Second operand 14 states and 1509 transitions. [2021-10-28 22:51:31,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 147 transitions, 943 flow [2021-10-28 22:51:31,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 147 transitions, 851 flow, removed 34 selfloop flow, removed 10 redundant places. [2021-10-28 22:51:31,937 INFO L242 Difference]: Finished difference. Result has 173 places, 135 transitions, 672 flow [2021-10-28 22:51:31,938 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=589, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=672, PETRI_PLACES=173, PETRI_TRANSITIONS=135} [2021-10-28 22:51:31,938 INFO L334 CegarLoopForPetriNet]: 136 programPoint places, 37 predicate places. [2021-10-28 22:51:31,938 INFO L470 AbstractCegarLoop]: Abstraction has has 173 places, 135 transitions, 672 flow [2021-10-28 22:51:31,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 106.38461538461539) internal successors, (1383), 13 states have internal predecessors, (1383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:31,939 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:51:31,939 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] [2021-10-28 22:51:31,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-28 22:51:31,940 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 22:51:31,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:31,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1521667807, now seen corresponding path program 4 times [2021-10-28 22:51:31,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:31,942 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661758440] [2021-10-28 22:51:31,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:31,942 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:31,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:32,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:51:32,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:32,268 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661758440] [2021-10-28 22:51:32,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661758440] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:32,268 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:32,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-28 22:51:32,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575374742] [2021-10-28 22:51:32,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 22:51:32,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:32,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 22:51:32,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-10-28 22:51:32,271 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 129 [2021-10-28 22:51:32,273 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 135 transitions, 672 flow. Second operand has 12 states, 12 states have (on average 108.33333333333333) internal successors, (1300), 12 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:32,273 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:51:32,273 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 129 [2021-10-28 22:51:32,273 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:51:32,731 INFO L129 PetriNetUnfolder]: 118/517 cut-off events. [2021-10-28 22:51:32,731 INFO L130 PetriNetUnfolder]: For 4261/4488 co-relation queries the response was YES. [2021-10-28 22:51:32,738 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2322 conditions, 517 events. 118/517 cut-off events. For 4261/4488 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2824 event pairs, 6 based on Foata normal form. 37/538 useless extension candidates. Maximal degree in co-relation 2231. Up to 145 conditions per place. [2021-10-28 22:51:32,745 INFO L132 encePairwiseOnDemand]: 118/129 looper letters, 35 selfloop transitions, 13 changer transitions 7/149 dead transitions. [2021-10-28 22:51:32,745 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 149 transitions, 994 flow [2021-10-28 22:51:32,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 22:51:32,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-10-28 22:51:32,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1105 transitions. [2021-10-28 22:51:32,748 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8565891472868217 [2021-10-28 22:51:32,748 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1105 transitions. [2021-10-28 22:51:32,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1105 transitions. [2021-10-28 22:51:32,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:51:32,749 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1105 transitions. [2021-10-28 22:51:32,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 110.5) internal successors, (1105), 10 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:32,755 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 129.0) internal successors, (1419), 11 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:32,755 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 129.0) internal successors, (1419), 11 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:32,756 INFO L186 Difference]: Start difference. First operand has 173 places, 135 transitions, 672 flow. Second operand 10 states and 1105 transitions. [2021-10-28 22:51:32,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 149 transitions, 994 flow [2021-10-28 22:51:32,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 149 transitions, 883 flow, removed 43 selfloop flow, removed 12 redundant places. [2021-10-28 22:51:32,782 INFO L242 Difference]: Finished difference. Result has 168 places, 137 transitions, 689 flow [2021-10-28 22:51:32,782 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=615, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=689, PETRI_PLACES=168, PETRI_TRANSITIONS=137} [2021-10-28 22:51:32,783 INFO L334 CegarLoopForPetriNet]: 136 programPoint places, 32 predicate places. [2021-10-28 22:51:32,783 INFO L470 AbstractCegarLoop]: Abstraction has has 168 places, 137 transitions, 689 flow [2021-10-28 22:51:32,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 108.33333333333333) internal successors, (1300), 12 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:32,784 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:51:32,784 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] [2021-10-28 22:51:32,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-28 22:51:32,784 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 22:51:32,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:32,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1957194307, now seen corresponding path program 5 times [2021-10-28 22:51:32,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:32,785 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746600018] [2021-10-28 22:51:32,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:32,786 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:32,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:33,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:51:33,064 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:33,064 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746600018] [2021-10-28 22:51:33,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746600018] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:33,065 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:33,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-28 22:51:33,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799865655] [2021-10-28 22:51:33,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 22:51:33,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:33,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 22:51:33,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-10-28 22:51:33,068 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 129 [2021-10-28 22:51:33,070 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 137 transitions, 689 flow. Second operand has 12 states, 12 states have (on average 108.33333333333333) internal successors, (1300), 12 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:33,070 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:51:33,070 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 129 [2021-10-28 22:51:33,070 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:51:33,491 INFO L129 PetriNetUnfolder]: 102/511 cut-off events. [2021-10-28 22:51:33,491 INFO L130 PetriNetUnfolder]: For 2970/3254 co-relation queries the response was YES. [2021-10-28 22:51:33,498 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2067 conditions, 511 events. 102/511 cut-off events. For 2970/3254 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2910 event pairs, 6 based on Foata normal form. 46/541 useless extension candidates. Maximal degree in co-relation 1979. Up to 113 conditions per place. [2021-10-28 22:51:33,503 INFO L132 encePairwiseOnDemand]: 119/129 looper letters, 35 selfloop transitions, 13 changer transitions 10/152 dead transitions. [2021-10-28 22:51:33,503 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 152 transitions, 971 flow [2021-10-28 22:51:33,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 22:51:33,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-28 22:51:33,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1430 transitions. [2021-10-28 22:51:33,507 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8527131782945736 [2021-10-28 22:51:33,507 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1430 transitions. [2021-10-28 22:51:33,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1430 transitions. [2021-10-28 22:51:33,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:51:33,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1430 transitions. [2021-10-28 22:51:33,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 110.0) internal successors, (1430), 13 states have internal predecessors, (1430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:33,514 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 129.0) internal successors, (1806), 14 states have internal predecessors, (1806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:33,515 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 129.0) internal successors, (1806), 14 states have internal predecessors, (1806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:33,515 INFO L186 Difference]: Start difference. First operand has 168 places, 137 transitions, 689 flow. Second operand 13 states and 1430 transitions. [2021-10-28 22:51:33,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 152 transitions, 971 flow [2021-10-28 22:51:33,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 152 transitions, 927 flow, removed 17 selfloop flow, removed 7 redundant places. [2021-10-28 22:51:33,532 INFO L242 Difference]: Finished difference. Result has 177 places, 137 transitions, 705 flow [2021-10-28 22:51:33,533 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=659, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=705, PETRI_PLACES=177, PETRI_TRANSITIONS=137} [2021-10-28 22:51:33,533 INFO L334 CegarLoopForPetriNet]: 136 programPoint places, 41 predicate places. [2021-10-28 22:51:33,533 INFO L470 AbstractCegarLoop]: Abstraction has has 177 places, 137 transitions, 705 flow [2021-10-28 22:51:33,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 108.33333333333333) internal successors, (1300), 12 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:33,534 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:51:33,534 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] [2021-10-28 22:51:33,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-28 22:51:33,535 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 22:51:33,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:33,535 INFO L85 PathProgramCache]: Analyzing trace with hash -2101522947, now seen corresponding path program 1 times [2021-10-28 22:51:33,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:33,536 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623635913] [2021-10-28 22:51:33,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:33,536 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:33,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:33,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:51:33,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:33,634 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623635913] [2021-10-28 22:51:33,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623635913] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:33,634 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:33,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 22:51:33,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676688095] [2021-10-28 22:51:33,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 22:51:33,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:33,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 22:51:33,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 22:51:33,637 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 129 [2021-10-28 22:51:33,638 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 137 transitions, 705 flow. Second operand has 6 states, 6 states have (on average 115.16666666666667) internal successors, (691), 6 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:33,639 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:51:33,639 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 129 [2021-10-28 22:51:33,639 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:51:34,450 INFO L129 PetriNetUnfolder]: 1458/3145 cut-off events. [2021-10-28 22:51:34,450 INFO L130 PetriNetUnfolder]: For 7976/8208 co-relation queries the response was YES. [2021-10-28 22:51:34,491 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9020 conditions, 3145 events. 1458/3145 cut-off events. For 7976/8208 co-relation queries the response was YES. Maximal size of possible extension queue 483. Compared 26437 event pairs, 114 based on Foata normal form. 92/2815 useless extension candidates. Maximal degree in co-relation 8933. Up to 837 conditions per place. [2021-10-28 22:51:34,529 INFO L132 encePairwiseOnDemand]: 118/129 looper letters, 29 selfloop transitions, 20 changer transitions 0/174 dead transitions. [2021-10-28 22:51:34,529 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 174 transitions, 877 flow [2021-10-28 22:51:34,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 22:51:34,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-10-28 22:51:34,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1191 transitions. [2021-10-28 22:51:34,535 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9232558139534883 [2021-10-28 22:51:34,535 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1191 transitions. [2021-10-28 22:51:34,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1191 transitions. [2021-10-28 22:51:34,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:51:34,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1191 transitions. [2021-10-28 22:51:34,544 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:34,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 129.0) internal successors, (1419), 11 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:34,552 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 129.0) internal successors, (1419), 11 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:34,552 INFO L186 Difference]: Start difference. First operand has 177 places, 137 transitions, 705 flow. Second operand 10 states and 1191 transitions. [2021-10-28 22:51:34,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 174 transitions, 877 flow [2021-10-28 22:51:34,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 174 transitions, 825 flow, removed 11 selfloop flow, removed 12 redundant places. [2021-10-28 22:51:34,586 INFO L242 Difference]: Finished difference. Result has 174 places, 155 transitions, 796 flow [2021-10-28 22:51:34,587 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=653, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=796, PETRI_PLACES=174, PETRI_TRANSITIONS=155} [2021-10-28 22:51:34,587 INFO L334 CegarLoopForPetriNet]: 136 programPoint places, 38 predicate places. [2021-10-28 22:51:34,588 INFO L470 AbstractCegarLoop]: Abstraction has has 174 places, 155 transitions, 796 flow [2021-10-28 22:51:34,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 115.16666666666667) internal successors, (691), 6 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:34,588 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:51:34,588 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] [2021-10-28 22:51:34,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-28 22:51:34,589 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 22:51:34,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:34,590 INFO L85 PathProgramCache]: Analyzing trace with hash -2019468549, now seen corresponding path program 1 times [2021-10-28 22:51:34,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:34,590 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375581495] [2021-10-28 22:51:34,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:34,590 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:34,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:34,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:51:34,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:34,723 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375581495] [2021-10-28 22:51:34,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375581495] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:34,723 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:34,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 22:51:34,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26449461] [2021-10-28 22:51:34,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 22:51:34,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:34,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 22:51:34,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-28 22:51:34,726 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 129 [2021-10-28 22:51:34,727 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 155 transitions, 796 flow. Second operand has 7 states, 7 states have (on average 115.14285714285714) internal successors, (806), 7 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:34,727 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:51:34,728 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 129 [2021-10-28 22:51:34,728 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:51:35,555 INFO L129 PetriNetUnfolder]: 1427/3067 cut-off events. [2021-10-28 22:51:35,556 INFO L130 PetriNetUnfolder]: For 11168/17383 co-relation queries the response was YES. [2021-10-28 22:51:35,594 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12141 conditions, 3067 events. 1427/3067 cut-off events. For 11168/17383 co-relation queries the response was YES. Maximal size of possible extension queue 481. Compared 25562 event pairs, 45 based on Foata normal form. 304/3024 useless extension candidates. Maximal degree in co-relation 12055. Up to 1446 conditions per place. [2021-10-28 22:51:35,621 INFO L132 encePairwiseOnDemand]: 118/129 looper letters, 34 selfloop transitions, 38 changer transitions 0/197 dead transitions. [2021-10-28 22:51:35,621 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 197 transitions, 1220 flow [2021-10-28 22:51:35,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 22:51:35,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-28 22:51:35,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1550 transitions. [2021-10-28 22:51:35,625 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9242695289206917 [2021-10-28 22:51:35,625 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1550 transitions. [2021-10-28 22:51:35,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1550 transitions. [2021-10-28 22:51:35,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:51:35,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1550 transitions. [2021-10-28 22:51:35,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 119.23076923076923) internal successors, (1550), 13 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:35,633 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 129.0) internal successors, (1806), 14 states have internal predecessors, (1806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:35,634 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 129.0) internal successors, (1806), 14 states have internal predecessors, (1806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:35,635 INFO L186 Difference]: Start difference. First operand has 174 places, 155 transitions, 796 flow. Second operand 13 states and 1550 transitions. [2021-10-28 22:51:35,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 197 transitions, 1220 flow [2021-10-28 22:51:35,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 197 transitions, 1218 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-28 22:51:35,662 INFO L242 Difference]: Finished difference. Result has 191 places, 175 transitions, 1087 flow [2021-10-28 22:51:35,663 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=794, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1087, PETRI_PLACES=191, PETRI_TRANSITIONS=175} [2021-10-28 22:51:35,663 INFO L334 CegarLoopForPetriNet]: 136 programPoint places, 55 predicate places. [2021-10-28 22:51:35,663 INFO L470 AbstractCegarLoop]: Abstraction has has 191 places, 175 transitions, 1087 flow [2021-10-28 22:51:35,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 115.14285714285714) internal successors, (806), 7 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:35,664 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:51:35,664 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] [2021-10-28 22:51:35,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-28 22:51:35,665 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 22:51:35,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:35,666 INFO L85 PathProgramCache]: Analyzing trace with hash -298475662, now seen corresponding path program 1 times [2021-10-28 22:51:35,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:35,666 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96564388] [2021-10-28 22:51:35,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:35,667 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:35,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:35,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:51:35,881 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:35,881 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96564388] [2021-10-28 22:51:35,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96564388] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:35,881 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:35,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 22:51:35,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463543686] [2021-10-28 22:51:35,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 22:51:35,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:35,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 22:51:35,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 22:51:35,885 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 129 [2021-10-28 22:51:35,886 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 175 transitions, 1087 flow. Second operand has 6 states, 6 states have (on average 117.33333333333333) internal successors, (704), 6 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:35,886 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:51:35,886 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 129 [2021-10-28 22:51:35,886 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:51:36,699 INFO L129 PetriNetUnfolder]: 852/2917 cut-off events. [2021-10-28 22:51:36,699 INFO L130 PetriNetUnfolder]: For 13745/18137 co-relation queries the response was YES. [2021-10-28 22:51:36,804 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12309 conditions, 2917 events. 852/2917 cut-off events. For 13745/18137 co-relation queries the response was YES. Maximal size of possible extension queue 350. Compared 29107 event pairs, 112 based on Foata normal form. 161/2802 useless extension candidates. Maximal degree in co-relation 12215. Up to 985 conditions per place. [2021-10-28 22:51:36,826 INFO L132 encePairwiseOnDemand]: 123/129 looper letters, 14 selfloop transitions, 11 changer transitions 0/189 dead transitions. [2021-10-28 22:51:36,826 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 189 transitions, 1239 flow [2021-10-28 22:51:36,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 22:51:36,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-28 22:51:36,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1070 transitions. [2021-10-28 22:51:36,829 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.921619293712317 [2021-10-28 22:51:36,829 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1070 transitions. [2021-10-28 22:51:36,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1070 transitions. [2021-10-28 22:51:36,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:51:36,830 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1070 transitions. [2021-10-28 22:51:36,832 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 118.88888888888889) internal successors, (1070), 9 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) [2021-10-28 22:51:36,835 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 129.0) internal successors, (1290), 10 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:36,835 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 129.0) internal successors, (1290), 10 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:36,835 INFO L186 Difference]: Start difference. First operand has 191 places, 175 transitions, 1087 flow. Second operand 9 states and 1070 transitions. [2021-10-28 22:51:36,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 189 transitions, 1239 flow [2021-10-28 22:51:36,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 189 transitions, 1136 flow, removed 42 selfloop flow, removed 4 redundant places. [2021-10-28 22:51:36,934 INFO L242 Difference]: Finished difference. Result has 202 places, 183 transitions, 1117 flow [2021-10-28 22:51:36,934 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=990, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1117, PETRI_PLACES=202, PETRI_TRANSITIONS=183} [2021-10-28 22:51:36,935 INFO L334 CegarLoopForPetriNet]: 136 programPoint places, 66 predicate places. [2021-10-28 22:51:36,935 INFO L470 AbstractCegarLoop]: Abstraction has has 202 places, 183 transitions, 1117 flow [2021-10-28 22:51:36,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 117.33333333333333) internal successors, (704), 6 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:36,936 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:51:36,936 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] [2021-10-28 22:51:36,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-28 22:51:36,937 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 22:51:36,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:36,937 INFO L85 PathProgramCache]: Analyzing trace with hash -156861180, now seen corresponding path program 1 times [2021-10-28 22:51:36,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:36,937 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317172502] [2021-10-28 22:51:36,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:36,938 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:36,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:37,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:51:37,078 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:37,078 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317172502] [2021-10-28 22:51:37,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317172502] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:37,079 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:37,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-28 22:51:37,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464840650] [2021-10-28 22:51:37,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 22:51:37,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:37,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 22:51:37,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-28 22:51:37,082 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 129 [2021-10-28 22:51:37,083 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 183 transitions, 1117 flow. Second operand has 8 states, 8 states have (on average 115.125) internal successors, (921), 8 states have internal predecessors, (921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:37,084 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:51:37,084 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 129 [2021-10-28 22:51:37,084 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:51:38,346 INFO L129 PetriNetUnfolder]: 2034/4104 cut-off events. [2021-10-28 22:51:38,346 INFO L130 PetriNetUnfolder]: For 34414/45507 co-relation queries the response was YES. [2021-10-28 22:51:38,407 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20727 conditions, 4104 events. 2034/4104 cut-off events. For 34414/45507 co-relation queries the response was YES. Maximal size of possible extension queue 650. Compared 35501 event pairs, 12 based on Foata normal form. 475/4074 useless extension candidates. Maximal degree in co-relation 20627. Up to 1713 conditions per place. [2021-10-28 22:51:38,432 INFO L132 encePairwiseOnDemand]: 118/129 looper letters, 28 selfloop transitions, 58 changer transitions 22/221 dead transitions. [2021-10-28 22:51:38,432 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 221 transitions, 1702 flow [2021-10-28 22:51:38,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-28 22:51:38,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-10-28 22:51:38,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1909 transitions. [2021-10-28 22:51:38,437 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9249031007751938 [2021-10-28 22:51:38,438 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1909 transitions. [2021-10-28 22:51:38,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1909 transitions. [2021-10-28 22:51:38,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:51:38,439 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1909 transitions. [2021-10-28 22:51:38,444 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 119.3125) internal successors, (1909), 16 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:38,449 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 129.0) internal successors, (2193), 17 states have internal predecessors, (2193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:38,450 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 129.0) internal successors, (2193), 17 states have internal predecessors, (2193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:38,450 INFO L186 Difference]: Start difference. First operand has 202 places, 183 transitions, 1117 flow. Second operand 16 states and 1909 transitions. [2021-10-28 22:51:38,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 221 transitions, 1702 flow [2021-10-28 22:51:38,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 221 transitions, 1624 flow, removed 23 selfloop flow, removed 10 redundant places. [2021-10-28 22:51:38,560 INFO L242 Difference]: Finished difference. Result has 211 places, 189 transitions, 1300 flow [2021-10-28 22:51:38,560 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=930, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1300, PETRI_PLACES=211, PETRI_TRANSITIONS=189} [2021-10-28 22:51:38,560 INFO L334 CegarLoopForPetriNet]: 136 programPoint places, 75 predicate places. [2021-10-28 22:51:38,561 INFO L470 AbstractCegarLoop]: Abstraction has has 211 places, 189 transitions, 1300 flow [2021-10-28 22:51:38,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 115.125) internal successors, (921), 8 states have internal predecessors, (921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:38,561 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:51:38,562 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] [2021-10-28 22:51:38,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-28 22:51:38,562 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 22:51:38,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:38,563 INFO L85 PathProgramCache]: Analyzing trace with hash -258800250, now seen corresponding path program 1 times [2021-10-28 22:51:38,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:38,563 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504645479] [2021-10-28 22:51:38,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:38,564 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:38,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:38,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:51:38,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:38,739 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504645479] [2021-10-28 22:51:38,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504645479] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:38,739 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:38,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-28 22:51:38,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127783249] [2021-10-28 22:51:38,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 22:51:38,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:38,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 22:51:38,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-10-28 22:51:38,744 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 129 [2021-10-28 22:51:38,746 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 189 transitions, 1300 flow. Second operand has 9 states, 9 states have (on average 115.11111111111111) internal successors, (1036), 9 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:38,746 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:51:38,746 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 129 [2021-10-28 22:51:38,747 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:51:40,037 INFO L129 PetriNetUnfolder]: 1775/3716 cut-off events. [2021-10-28 22:51:40,038 INFO L130 PetriNetUnfolder]: For 38331/46692 co-relation queries the response was YES. [2021-10-28 22:51:40,072 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21044 conditions, 3716 events. 1775/3716 cut-off events. For 38331/46692 co-relation queries the response was YES. Maximal size of possible extension queue 650. Compared 33174 event pairs, 0 based on Foata normal form. 456/3669 useless extension candidates. Maximal degree in co-relation 20996. Up to 1481 conditions per place. [2021-10-28 22:51:40,095 INFO L132 encePairwiseOnDemand]: 118/129 looper letters, 22 selfloop transitions, 63 changer transitions 27/223 dead transitions. [2021-10-28 22:51:40,096 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 223 transitions, 1816 flow [2021-10-28 22:51:40,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-28 22:51:40,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-10-28 22:51:40,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2248 transitions. [2021-10-28 22:51:40,101 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9171766625866993 [2021-10-28 22:51:40,101 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2248 transitions. [2021-10-28 22:51:40,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2248 transitions. [2021-10-28 22:51:40,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:51:40,103 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2248 transitions. [2021-10-28 22:51:40,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 118.3157894736842) internal successors, (2248), 19 states have internal predecessors, (2248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:40,113 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 129.0) internal successors, (2580), 20 states have internal predecessors, (2580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:40,114 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 129.0) internal successors, (2580), 20 states have internal predecessors, (2580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:40,115 INFO L186 Difference]: Start difference. First operand has 211 places, 189 transitions, 1300 flow. Second operand 19 states and 2248 transitions. [2021-10-28 22:51:40,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 223 transitions, 1816 flow [2021-10-28 22:51:41,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 223 transitions, 1336 flow, removed 189 selfloop flow, removed 25 redundant places. [2021-10-28 22:51:41,091 INFO L242 Difference]: Finished difference. Result has 205 places, 186 transitions, 1042 flow [2021-10-28 22:51:41,092 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=875, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=1042, PETRI_PLACES=205, PETRI_TRANSITIONS=186} [2021-10-28 22:51:41,093 INFO L334 CegarLoopForPetriNet]: 136 programPoint places, 69 predicate places. [2021-10-28 22:51:41,094 INFO L470 AbstractCegarLoop]: Abstraction has has 205 places, 186 transitions, 1042 flow [2021-10-28 22:51:41,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 115.11111111111111) internal successors, (1036), 9 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:41,094 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:51:41,095 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] [2021-10-28 22:51:41,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-28 22:51:41,095 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 22:51:41,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:41,096 INFO L85 PathProgramCache]: Analyzing trace with hash 748616090, now seen corresponding path program 1 times [2021-10-28 22:51:41,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:41,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816694098] [2021-10-28 22:51:41,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:41,097 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:41,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:41,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:51:41,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:41,229 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816694098] [2021-10-28 22:51:41,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816694098] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:41,229 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:41,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 22:51:41,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583446067] [2021-10-28 22:51:41,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 22:51:41,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:41,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 22:51:41,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-28 22:51:41,232 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 129 [2021-10-28 22:51:41,233 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 186 transitions, 1042 flow. Second operand has 7 states, 7 states have (on average 116.42857142857143) internal successors, (815), 7 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:41,234 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:51:41,234 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 129 [2021-10-28 22:51:41,234 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:51:42,397 INFO L129 PetriNetUnfolder]: 2006/5374 cut-off events. [2021-10-28 22:51:42,398 INFO L130 PetriNetUnfolder]: For 15640/17490 co-relation queries the response was YES. [2021-10-28 22:51:42,462 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18260 conditions, 5374 events. 2006/5374 cut-off events. For 15640/17490 co-relation queries the response was YES. Maximal size of possible extension queue 872. Compared 58622 event pairs, 0 based on Foata normal form. 5/4618 useless extension candidates. Maximal degree in co-relation 18179. Up to 666 conditions per place. [2021-10-28 22:51:42,487 INFO L132 encePairwiseOnDemand]: 123/129 looper letters, 9 selfloop transitions, 2 changer transitions 4/191 dead transitions. [2021-10-28 22:51:42,487 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 191 transitions, 1086 flow [2021-10-28 22:51:42,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 22:51:42,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-10-28 22:51:42,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 821 transitions. [2021-10-28 22:51:42,490 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9091915836101883 [2021-10-28 22:51:42,491 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 821 transitions. [2021-10-28 22:51:42,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 821 transitions. [2021-10-28 22:51:42,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:51:42,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 821 transitions. [2021-10-28 22:51:42,494 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 117.28571428571429) internal successors, (821), 7 states have internal predecessors, (821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:42,497 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 129.0) internal successors, (1032), 8 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:42,497 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 129.0) internal successors, (1032), 8 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:42,498 INFO L186 Difference]: Start difference. First operand has 205 places, 186 transitions, 1042 flow. Second operand 7 states and 821 transitions. [2021-10-28 22:51:42,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 191 transitions, 1086 flow [2021-10-28 22:51:43,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 191 transitions, 957 flow, removed 13 selfloop flow, removed 19 redundant places. [2021-10-28 22:51:43,235 INFO L242 Difference]: Finished difference. Result has 194 places, 187 transitions, 934 flow [2021-10-28 22:51:43,236 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=915, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=934, PETRI_PLACES=194, PETRI_TRANSITIONS=187} [2021-10-28 22:51:43,236 INFO L334 CegarLoopForPetriNet]: 136 programPoint places, 58 predicate places. [2021-10-28 22:51:43,236 INFO L470 AbstractCegarLoop]: Abstraction has has 194 places, 187 transitions, 934 flow [2021-10-28 22:51:43,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 116.42857142857143) internal successors, (815), 7 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:43,237 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:51:43,237 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] [2021-10-28 22:51:43,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-28 22:51:43,237 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 22:51:43,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:43,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1359830720, now seen corresponding path program 2 times [2021-10-28 22:51:43,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:43,238 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150617861] [2021-10-28 22:51:43,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:43,239 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:43,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:43,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:51:43,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:43,378 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150617861] [2021-10-28 22:51:43,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150617861] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:43,379 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:43,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 22:51:43,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070869453] [2021-10-28 22:51:43,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 22:51:43,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:43,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 22:51:43,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-28 22:51:43,382 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 129 [2021-10-28 22:51:43,384 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 187 transitions, 934 flow. Second operand has 7 states, 7 states have (on average 116.42857142857143) internal successors, (815), 7 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:43,384 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:51:43,384 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 129 [2021-10-28 22:51:43,384 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:51:45,393 INFO L129 PetriNetUnfolder]: 3909/10355 cut-off events. [2021-10-28 22:51:45,393 INFO L130 PetriNetUnfolder]: For 21138/22109 co-relation queries the response was YES. [2021-10-28 22:51:45,530 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32335 conditions, 10355 events. 3909/10355 cut-off events. For 21138/22109 co-relation queries the response was YES. Maximal size of possible extension queue 1641. Compared 127830 event pairs, 0 based on Foata normal form. 7/9024 useless extension candidates. Maximal degree in co-relation 32301. Up to 1288 conditions per place. [2021-10-28 22:51:45,542 INFO L132 encePairwiseOnDemand]: 123/129 looper letters, 9 selfloop transitions, 1 changer transitions 20/192 dead transitions. [2021-10-28 22:51:45,542 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 192 transitions, 982 flow [2021-10-28 22:51:45,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 22:51:45,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-10-28 22:51:45,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 821 transitions. [2021-10-28 22:51:45,545 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9091915836101883 [2021-10-28 22:51:45,545 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 821 transitions. [2021-10-28 22:51:45,545 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 821 transitions. [2021-10-28 22:51:45,546 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:51:45,546 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 821 transitions. [2021-10-28 22:51:45,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 117.28571428571429) internal successors, (821), 7 states have internal predecessors, (821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:45,550 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 129.0) internal successors, (1032), 8 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:45,551 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 129.0) internal successors, (1032), 8 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:45,551 INFO L186 Difference]: Start difference. First operand has 194 places, 187 transitions, 934 flow. Second operand 7 states and 821 transitions. [2021-10-28 22:51:45,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 192 transitions, 982 flow [2021-10-28 22:51:47,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 192 transitions, 971 flow, removed 5 selfloop flow, removed 4 redundant places. [2021-10-28 22:51:47,320 INFO L242 Difference]: Finished difference. Result has 198 places, 172 transitions, 839 flow [2021-10-28 22:51:47,320 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=927, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=839, PETRI_PLACES=198, PETRI_TRANSITIONS=172} [2021-10-28 22:51:47,321 INFO L334 CegarLoopForPetriNet]: 136 programPoint places, 62 predicate places. [2021-10-28 22:51:47,321 INFO L470 AbstractCegarLoop]: Abstraction has has 198 places, 172 transitions, 839 flow [2021-10-28 22:51:47,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 116.42857142857143) internal successors, (815), 7 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:47,322 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:51:47,322 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] [2021-10-28 22:51:47,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-28 22:51:47,322 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 22:51:47,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:47,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1181085136, now seen corresponding path program 3 times [2021-10-28 22:51:47,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:47,324 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610123274] [2021-10-28 22:51:47,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:47,324 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:47,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:47,373 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:51:47,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:47,471 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:51:47,471 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 22:51:47,472 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 22:51:47,474 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 22:51:47,474 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-28 22:51:47,475 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-28 22:51:47,475 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-28 22:51:47,475 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATION [2021-10-28 22:51:47,475 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 22:51:47,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-10-28 22:51:47,479 INFO L731 BasicCegarLoop]: Path program histogram: [5, 5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:51:47,484 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-28 22:51:47,484 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 22:51:47,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 10:51:47 BasicIcfg [2021-10-28 22:51:47,688 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 22:51:47,689 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 22:51:47,689 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 22:51:47,689 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 22:51:47,690 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:51:22" (3/4) ... [2021-10-28 22:51:47,692 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-28 22:51:47,827 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72fc8b0-75f8-4ae0-867f-b48c16fe9fea/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 22:51:47,827 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 22:51:47,829 INFO L168 Benchmark]: Toolchain (without parser) took 27771.03 ms. Allocated memory was 81.8 MB in the beginning and 1.9 GB in the end (delta: 1.8 GB). Free memory was 44.3 MB in the beginning and 525.7 MB in the end (delta: -481.3 MB). Peak memory consumption was 1.4 GB. Max. memory is 16.1 GB. [2021-10-28 22:51:47,829 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 81.8 MB. Free memory was 62.7 MB in the beginning and 62.6 MB in the end (delta: 38.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:51:47,830 INFO L168 Benchmark]: CACSL2BoogieTranslator took 667.97 ms. Allocated memory was 81.8 MB in the beginning and 113.2 MB in the end (delta: 31.5 MB). Free memory was 44.1 MB in the beginning and 77.4 MB in the end (delta: -33.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 22:51:47,830 INFO L168 Benchmark]: Boogie Procedure Inliner took 110.48 ms. Allocated memory is still 113.2 MB. Free memory was 77.4 MB in the beginning and 74.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:51:47,830 INFO L168 Benchmark]: Boogie Preprocessor took 76.19 ms. Allocated memory is still 113.2 MB. Free memory was 74.4 MB in the beginning and 72.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:51:47,831 INFO L168 Benchmark]: RCFGBuilder took 1942.94 ms. Allocated memory is still 113.2 MB. Free memory was 72.2 MB in the beginning and 60.5 MB in the end (delta: 11.7 MB). Peak memory consumption was 36.2 MB. Max. memory is 16.1 GB. [2021-10-28 22:51:47,831 INFO L168 Benchmark]: TraceAbstraction took 24825.15 ms. Allocated memory was 113.2 MB in the beginning and 1.9 GB in the end (delta: 1.8 GB). Free memory was 59.9 MB in the beginning and 567.6 MB in the end (delta: -507.7 MB). Peak memory consumption was 1.3 GB. Max. memory is 16.1 GB. [2021-10-28 22:51:47,832 INFO L168 Benchmark]: Witness Printer took 138.69 ms. Allocated memory is still 1.9 GB. Free memory was 567.6 MB in the beginning and 525.7 MB in the end (delta: 41.9 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. [2021-10-28 22:51:47,834 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 81.8 MB. Free memory was 62.7 MB in the beginning and 62.6 MB in the end (delta: 38.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 667.97 ms. Allocated memory was 81.8 MB in the beginning and 113.2 MB in the end (delta: 31.5 MB). Free memory was 44.1 MB in the beginning and 77.4 MB in the end (delta: -33.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 110.48 ms. Allocated memory is still 113.2 MB. Free memory was 77.4 MB in the beginning and 74.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 76.19 ms. Allocated memory is still 113.2 MB. Free memory was 74.4 MB in the beginning and 72.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1942.94 ms. Allocated memory is still 113.2 MB. Free memory was 72.2 MB in the beginning and 60.5 MB in the end (delta: 11.7 MB). Peak memory consumption was 36.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 24825.15 ms. Allocated memory was 113.2 MB in the beginning and 1.9 GB in the end (delta: 1.8 GB). Free memory was 59.9 MB in the beginning and 567.6 MB in the end (delta: -507.7 MB). Peak memory consumption was 1.3 GB. Max. memory is 16.1 GB. * Witness Printer took 138.69 ms. Allocated memory is still 1.9 GB. Free memory was 567.6 MB in the beginning and 525.7 MB in the end (delta: 41.9 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L710] 0 int __unbuffered_cnt = 0; VAL [__unbuffered_cnt=0] [L712] 0 int __unbuffered_p0_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0] [L714] 0 int __unbuffered_p3_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0] [L716] 0 int __unbuffered_p3_EBX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0] [L718] 0 int a = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0] [L720] 0 int b = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0] [L721] 0 _Bool main$tmp_guard0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0] [L722] 0 _Bool main$tmp_guard1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0] [L724] 0 int x = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0] [L726] 0 int y = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0] [L728] 0 int z = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0] [L729] 0 _Bool z$flush_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0] [L730] 0 int z$mem_tmp; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0] [L731] 0 _Bool z$r_buff0_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0] [L732] 0 _Bool z$r_buff0_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0] [L733] 0 _Bool z$r_buff0_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0] [L734] 0 _Bool z$r_buff0_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0] [L735] 0 _Bool z$r_buff0_thd4; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0] [L736] 0 _Bool z$r_buff1_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0] [L737] 0 _Bool z$r_buff1_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0] [L738] 0 _Bool z$r_buff1_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0] [L739] 0 _Bool z$r_buff1_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0] [L740] 0 _Bool z$r_buff1_thd4; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0] [L741] 0 _Bool z$read_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0] [L742] 0 int *z$read_delayed_var; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}] [L743] 0 int z$w_buff0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0] [L744] 0 _Bool z$w_buff0_used; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0] [L745] 0 int z$w_buff1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0] [L746] 0 _Bool z$w_buff1_used; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L747] 0 _Bool weak$$choice0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L748] 0 _Bool weak$$choice2; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L846] 0 pthread_t t1221; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L847] FCALL, FORK 0 pthread_create(&t1221, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L848] 0 pthread_t t1222; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L849] FCALL, FORK 0 pthread_create(&t1222, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L850] 0 pthread_t t1223; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L851] FCALL, FORK 0 pthread_create(&t1223, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L852] 0 pthread_t t1224; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L853] FCALL, FORK 0 pthread_create(&t1224, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L802] 4 z$w_buff1 = z$w_buff0 [L803] 4 z$w_buff0 = 2 [L804] 4 z$w_buff1_used = z$w_buff0_used [L805] 4 z$w_buff0_used = (_Bool)1 [L18] COND FALSE 4 !(!expression) [L807] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L808] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L809] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L810] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L811] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L812] 4 z$r_buff0_thd4 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L815] 4 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L818] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L821] 4 __unbuffered_p3_EBX = b VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L752] 1 b = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L755] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L767] 2 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L770] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L782] 3 y = 2 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L785] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L788] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L788] EXPR 3 z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z [L788] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L788] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L789] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L789] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L790] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L790] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L791] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L791] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L792] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L792] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L824] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L824] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L825] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L825] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L826] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L826] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L827] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L827] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L828] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L828] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L760] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, z=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L775] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, z=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L795] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, z=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L831] 4 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, z=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L855] 0 main$tmp_guard0 = __unbuffered_cnt == 4 VAL [__unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, z=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L3] COND FALSE 0 !(!cond) VAL [__unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, z=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L859] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L859] EXPR 0 z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z [L859] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L859] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L860] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L860] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L861] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L861] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L862] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L862] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L863] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L863] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L866] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L867] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L868] 0 z$flush_delayed = weak$$choice2 [L869] 0 z$mem_tmp = z [L870] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L870] 0 z = !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L871] EXPR 0 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L871] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0) [L871] EXPR 0 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L871] 0 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L872] EXPR 0 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L872] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1) [L872] EXPR 0 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L872] 0 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L873] EXPR 0 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L873] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used) [L873] EXPR 0 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L873] 0 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L874] EXPR 0 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L874] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L874] EXPR 0 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L874] 0 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L875] EXPR 0 weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L875] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0) [L875] EXPR 0 weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L875] 0 z$r_buff0_thd0 = weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L876] EXPR 0 weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L876] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L876] EXPR 0 weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L876] 0 z$r_buff1_thd0 = weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L877] 0 main$tmp_guard1 = !(y == 2 && z == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) [L878] EXPR 0 z$flush_delayed ? z$mem_tmp : z [L878] 0 z = z$flush_delayed ? z$mem_tmp : z [L879] 0 z$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=2, z=2, z$flush_delayed=0, z$mem_tmp=2, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L18] COND TRUE 0 !expression VAL [__unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=2, z=2, z$flush_delayed=0, z$mem_tmp=2, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L18] 0 reach_error() VAL [__unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=2, z=2, z$flush_delayed=0, z$mem_tmp=2, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - UnprovableResult [Line: 18]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 853]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 847]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 849]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 851]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 165 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 24.4s, OverallIterations: 22, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 18.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 213 SDtfs, 736 SDslu, 884 SDs, 0 SdLazy, 1732 SolverSat, 379 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 313 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 270 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 581 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1300occurred in iteration=18, InterpolantAutomatonStates: 234, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 1947 NumberOfCodeBlocks, 1947 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 1826 ConstructedInterpolants, 0 QuantifiedInterpolants, 9417 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-28 22:51:47,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72fc8b0-75f8-4ae0-867f-b48c16fe9fea/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...