./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390887dc-6229-421a-a13f-644e808daf3f/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390887dc-6229-421a-a13f-644e808daf3f/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390887dc-6229-421a-a13f-644e808daf3f/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390887dc-6229-421a-a13f-644e808daf3f/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390887dc-6229-421a-a13f-644e808daf3f/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390887dc-6229-421a-a13f-644e808daf3f/bin/uautomizer-DrprNOufMa --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 6883737711af32a6a824eca7af237353e2fdaf7712a6b3c22083c0d47b565ee7 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 01:04:23,538 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 01:04:23,539 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 01:04:23,569 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 01:04:23,569 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 01:04:23,571 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 01:04:23,572 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 01:04:23,575 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 01:04:23,577 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 01:04:23,578 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 01:04:23,579 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 01:04:23,580 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 01:04:23,580 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 01:04:23,581 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 01:04:23,583 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 01:04:23,584 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 01:04:23,585 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 01:04:23,586 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 01:04:23,588 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 01:04:23,590 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 01:04:23,592 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 01:04:23,594 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 01:04:23,595 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 01:04:23,596 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 01:04:23,599 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 01:04:23,600 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 01:04:23,600 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 01:04:23,601 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 01:04:23,602 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 01:04:23,603 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 01:04:23,603 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 01:04:23,604 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 01:04:23,605 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 01:04:23,605 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 01:04:23,606 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 01:04:23,607 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 01:04:23,607 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 01:04:23,607 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 01:04:23,608 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 01:04:23,608 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 01:04:23,609 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 01:04:23,610 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390887dc-6229-421a-a13f-644e808daf3f/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-07 01:04:23,632 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 01:04:23,633 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 01:04:23,633 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 01:04:23,633 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 01:04:23,634 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 01:04:23,634 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 01:04:23,634 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 01:04:23,634 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 01:04:23,635 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 01:04:23,635 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 01:04:23,635 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-07 01:04:23,635 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 01:04:23,635 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-07 01:04:23,635 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 01:04:23,635 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 01:04:23,635 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 01:04:23,635 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 01:04:23,636 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-07 01:04:23,636 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 01:04:23,636 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 01:04:23,636 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 01:04:23,636 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 01:04:23,636 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 01:04:23,636 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 01:04:23,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:04:23,636 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 01:04:23,637 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 01:04:23,637 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 01:04:23,637 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 01:04:23,637 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-07 01:04:23,637 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 01:04:23,637 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 01:04:23,637 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 01:04:23,637 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 01:04:23,637 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_390887dc-6229-421a-a13f-644e808daf3f/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390887dc-6229-421a-a13f-644e808daf3f/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6883737711af32a6a824eca7af237353e2fdaf7712a6b3c22083c0d47b565ee7 [2021-12-07 01:04:23,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 01:04:23,835 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 01:04:23,837 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 01:04:23,838 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 01:04:23,838 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 01:04:23,839 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390887dc-6229-421a-a13f-644e808daf3f/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2021-12-07 01:04:23,880 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390887dc-6229-421a-a13f-644e808daf3f/bin/uautomizer-DrprNOufMa/data/440379d12/89fe8f417c4d4a888c372d9193a72d4e/FLAGcb14d3b9c [2021-12-07 01:04:24,307 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 01:04:24,308 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390887dc-6229-421a-a13f-644e808daf3f/sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2021-12-07 01:04:24,318 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390887dc-6229-421a-a13f-644e808daf3f/bin/uautomizer-DrprNOufMa/data/440379d12/89fe8f417c4d4a888c372d9193a72d4e/FLAGcb14d3b9c [2021-12-07 01:04:24,328 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390887dc-6229-421a-a13f-644e808daf3f/bin/uautomizer-DrprNOufMa/data/440379d12/89fe8f417c4d4a888c372d9193a72d4e [2021-12-07 01:04:24,330 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 01:04:24,332 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 01:04:24,333 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 01:04:24,333 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 01:04:24,336 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 01:04:24,336 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:04:24" (1/1) ... [2021-12-07 01:04:24,337 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@367bd6cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:04:24, skipping insertion in model container [2021-12-07 01:04:24,337 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:04:24" (1/1) ... [2021-12-07 01:04:24,342 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 01:04:24,368 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 01:04:24,508 WARN L230 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_390887dc-6229-421a-a13f-644e808daf3f/sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i[1120,1133] [2021-12-07 01:04:24,605 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:04:24,615 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 01:04:24,623 WARN L230 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_390887dc-6229-421a-a13f-644e808daf3f/sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i[1120,1133] [2021-12-07 01:04:24,647 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:04:24,673 INFO L208 MainTranslator]: Completed translation [2021-12-07 01:04:24,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:04:24 WrapperNode [2021-12-07 01:04:24,674 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 01:04:24,675 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 01:04:24,675 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 01:04:24,675 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 01:04:24,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:04:24" (1/1) ... [2021-12-07 01:04:24,690 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:04:24" (1/1) ... [2021-12-07 01:04:24,708 INFO L137 Inliner]: procedures = 165, calls = 42, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 139 [2021-12-07 01:04:24,709 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 01:04:24,709 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 01:04:24,709 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 01:04:24,709 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 01:04:24,715 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:04:24" (1/1) ... [2021-12-07 01:04:24,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:04:24" (1/1) ... [2021-12-07 01:04:24,718 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:04:24" (1/1) ... [2021-12-07 01:04:24,718 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:04:24" (1/1) ... [2021-12-07 01:04:24,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:04:24" (1/1) ... [2021-12-07 01:04:24,724 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:04:24" (1/1) ... [2021-12-07 01:04:24,726 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:04:24" (1/1) ... [2021-12-07 01:04:24,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 01:04:24,729 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 01:04:24,729 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 01:04:24,730 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 01:04:24,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:04:24" (1/1) ... [2021-12-07 01:04:24,736 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:04:24,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390887dc-6229-421a-a13f-644e808daf3f/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:04:24,754 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390887dc-6229-421a-a13f-644e808daf3f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 01:04:24,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390887dc-6229-421a-a13f-644e808daf3f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 01:04:24,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-07 01:04:24,790 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-12-07 01:04:24,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 01:04:24,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-07 01:04:24,790 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-12-07 01:04:24,790 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-12-07 01:04:24,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-07 01:04:24,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-07 01:04:24,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 01:04:24,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 01:04:24,792 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-07 01:04:24,875 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 01:04:24,876 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 01:04:25,083 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 01:04:25,093 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 01:04:25,093 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-07 01:04:25,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:04:25 BoogieIcfgContainer [2021-12-07 01:04:25,095 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 01:04:25,097 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 01:04:25,098 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 01:04:25,101 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 01:04:25,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:04:24" (1/3) ... [2021-12-07 01:04:25,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68a2fd9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:04:25, skipping insertion in model container [2021-12-07 01:04:25,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:04:24" (2/3) ... [2021-12-07 01:04:25,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68a2fd9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:04:25, skipping insertion in model container [2021-12-07 01:04:25,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:04:25" (3/3) ... [2021-12-07 01:04:25,104 INFO L111 eAbstractionObserver]: Analyzing ICFG 36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2021-12-07 01:04:25,109 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-07 01:04:25,109 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 01:04:25,109 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-07 01:04:25,110 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-07 01:04:25,142 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,143 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,143 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,143 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,143 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,143 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,143 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,144 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,144 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,144 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,144 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,144 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,144 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,144 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,145 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,145 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,145 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,145 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,145 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,145 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~y~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,145 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,146 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~y~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,146 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,146 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,146 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,146 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,146 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,147 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~z~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,147 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,147 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~z~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,147 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,147 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,147 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,147 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,148 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,148 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,148 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,148 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,148 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,148 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,149 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,149 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,149 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,149 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,149 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,149 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,149 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,150 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,150 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,150 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,150 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~y~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,150 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~y~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,150 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~y~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,150 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,151 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,151 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~y~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,151 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,151 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,151 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,151 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,151 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,152 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,152 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,152 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,152 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,152 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,152 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,153 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,153 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,153 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,153 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,153 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,153 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~y~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,154 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,156 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,156 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~y~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,156 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,156 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,156 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,156 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,157 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,157 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,157 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,157 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,157 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,157 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,157 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,158 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,158 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,158 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,158 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,158 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,158 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,159 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,159 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,159 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,159 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,159 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,159 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,159 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,160 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,160 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,160 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,160 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,160 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,160 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,160 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,160 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,161 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,161 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,161 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,161 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,161 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,161 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,162 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,162 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,162 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,162 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,162 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,162 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,162 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,163 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,163 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,163 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,163 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,163 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,163 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,163 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,164 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,164 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,164 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,164 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,164 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,164 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,164 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,164 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,165 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,165 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,165 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,165 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,165 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,165 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,165 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,166 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,166 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,166 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,166 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,166 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,166 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,166 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,166 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,167 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,167 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,167 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,167 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,167 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,167 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~z~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,167 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~z~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,168 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~z~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,168 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,168 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,168 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~z~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,168 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,168 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,168 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,168 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,169 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,169 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,169 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,169 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,169 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,169 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,169 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,169 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,172 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,172 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,172 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,173 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,173 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,173 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,173 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~y~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,173 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,173 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~z~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,173 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,173 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,173 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,173 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,174 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,174 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,174 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,174 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,174 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,174 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,174 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,174 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,174 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,175 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:04:25,177 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-12-07 01:04:25,215 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 01:04:25,222 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 [2021-12-07 01:04:25,222 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-12-07 01:04:25,234 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 178 places, 183 transitions, 371 flow [2021-12-07 01:04:25,299 INFO L129 PetriNetUnfolder]: 8/186 cut-off events. [2021-12-07 01:04:25,299 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-07 01:04:25,304 INFO L84 FinitePrefix]: Finished finitePrefix Result has 190 conditions, 186 events. 8/186 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 163 event pairs, 0 based on Foata normal form. 0/174 useless extension candidates. Maximal degree in co-relation 136. Up to 2 conditions per place. [2021-12-07 01:04:25,304 INFO L82 GeneralOperation]: Start removeDead. Operand has 178 places, 183 transitions, 371 flow [2021-12-07 01:04:25,309 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 177 places, 181 transitions, 365 flow [2021-12-07 01:04:25,323 INFO L129 PetriNetUnfolder]: 2/97 cut-off events. [2021-12-07 01:04:25,323 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-07 01:04:25,323 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:04:25,324 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] [2021-12-07 01:04:25,324 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION, t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-07 01:04:25,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:04:25,328 INFO L85 PathProgramCache]: Analyzing trace with hash -930805020, now seen corresponding path program 1 times [2021-12-07 01:04:25,335 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:04:25,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667345815] [2021-12-07 01:04:25,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:04:25,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:04:25,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:04:25,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:04:25,620 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:04:25,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667345815] [2021-12-07 01:04:25,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667345815] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:04:25,621 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:04:25,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 01:04:25,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784637993] [2021-12-07 01:04:25,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:04:25,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-07 01:04:25,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:04:25,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 01:04:25,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-07 01:04:25,654 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 183 [2021-12-07 01:04:25,660 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 181 transitions, 365 flow. Second operand has 8 states, 8 states have (on average 146.5) internal successors, (1172), 8 states have internal predecessors, (1172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:25,660 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:04:25,660 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 183 [2021-12-07 01:04:25,661 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:04:26,012 INFO L129 PetriNetUnfolder]: 95/1143 cut-off events. [2021-12-07 01:04:26,012 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-07 01:04:26,016 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1385 conditions, 1143 events. 95/1143 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 7387 event pairs, 25 based on Foata normal form. 93/1163 useless extension candidates. Maximal degree in co-relation 1332. Up to 89 conditions per place. [2021-12-07 01:04:26,022 INFO L132 encePairwiseOnDemand]: 161/183 looper letters, 52 selfloop transitions, 38 changer transitions 11/239 dead transitions. [2021-12-07 01:04:26,022 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 239 transitions, 673 flow [2021-12-07 01:04:26,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-07 01:04:26,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-12-07 01:04:26,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2885 transitions. [2021-12-07 01:04:26,048 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8297382801265458 [2021-12-07 01:04:26,049 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2885 transitions. [2021-12-07 01:04:26,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2885 transitions. [2021-12-07 01:04:26,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:04:26,058 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2885 transitions. [2021-12-07 01:04:26,067 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 151.8421052631579) internal successors, (2885), 19 states have internal predecessors, (2885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:26,080 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 183.0) internal successors, (3660), 20 states have internal predecessors, (3660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:26,083 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 183.0) internal successors, (3660), 20 states have internal predecessors, (3660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:26,084 INFO L186 Difference]: Start difference. First operand has 177 places, 181 transitions, 365 flow. Second operand 19 states and 2885 transitions. [2021-12-07 01:04:26,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 239 transitions, 673 flow [2021-12-07 01:04:26,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 239 transitions, 672 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-07 01:04:26,093 INFO L242 Difference]: Finished difference. Result has 196 places, 197 transitions, 514 flow [2021-12-07 01:04:26,095 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=514, PETRI_PLACES=196, PETRI_TRANSITIONS=197} [2021-12-07 01:04:26,098 INFO L334 CegarLoopForPetriNet]: 177 programPoint places, 19 predicate places. [2021-12-07 01:04:26,098 INFO L470 AbstractCegarLoop]: Abstraction has has 196 places, 197 transitions, 514 flow [2021-12-07 01:04:26,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 146.5) internal successors, (1172), 8 states have internal predecessors, (1172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:26,099 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:04:26,099 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] [2021-12-07 01:04:26,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-07 01:04:26,099 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION, t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-07 01:04:26,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:04:26,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1816353862, now seen corresponding path program 1 times [2021-12-07 01:04:26,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:04:26,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206631150] [2021-12-07 01:04:26,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:04:26,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:04:26,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:04:26,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:04:26,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:04:26,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206631150] [2021-12-07 01:04:26,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206631150] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:04:26,234 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:04:26,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 01:04:26,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829054997] [2021-12-07 01:04:26,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:04:26,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:04:26,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:04:26,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:04:26,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:04:26,239 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 183 [2021-12-07 01:04:26,241 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 197 transitions, 514 flow. Second operand has 6 states, 6 states have (on average 148.83333333333334) internal successors, (893), 6 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:26,241 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:04:26,241 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 183 [2021-12-07 01:04:26,242 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:04:26,373 INFO L129 PetriNetUnfolder]: 19/584 cut-off events. [2021-12-07 01:04:26,373 INFO L130 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2021-12-07 01:04:26,375 INFO L84 FinitePrefix]: Finished finitePrefix Result has 767 conditions, 584 events. 19/584 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2345 event pairs, 6 based on Foata normal form. 8/573 useless extension candidates. Maximal degree in co-relation 735. Up to 36 conditions per place. [2021-12-07 01:04:26,376 INFO L132 encePairwiseOnDemand]: 175/183 looper letters, 24 selfloop transitions, 8 changer transitions 0/180 dead transitions. [2021-12-07 01:04:26,376 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 180 transitions, 487 flow [2021-12-07 01:04:26,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 01:04:26,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-07 01:04:26,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 765 transitions. [2021-12-07 01:04:26,379 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8360655737704918 [2021-12-07 01:04:26,379 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 765 transitions. [2021-12-07 01:04:26,379 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 765 transitions. [2021-12-07 01:04:26,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:04:26,379 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 765 transitions. [2021-12-07 01:04:26,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 153.0) internal successors, (765), 5 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:26,383 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 183.0) internal successors, (1098), 6 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:26,384 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 183.0) internal successors, (1098), 6 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:26,384 INFO L186 Difference]: Start difference. First operand has 196 places, 197 transitions, 514 flow. Second operand 5 states and 765 transitions. [2021-12-07 01:04:26,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 180 transitions, 487 flow [2021-12-07 01:04:26,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 180 transitions, 479 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-12-07 01:04:26,390 INFO L242 Difference]: Finished difference. Result has 183 places, 174 transitions, 427 flow [2021-12-07 01:04:26,390 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=401, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=427, PETRI_PLACES=183, PETRI_TRANSITIONS=174} [2021-12-07 01:04:26,391 INFO L334 CegarLoopForPetriNet]: 177 programPoint places, 6 predicate places. [2021-12-07 01:04:26,391 INFO L470 AbstractCegarLoop]: Abstraction has has 183 places, 174 transitions, 427 flow [2021-12-07 01:04:26,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 148.83333333333334) internal successors, (893), 6 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:26,392 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:04:26,392 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] [2021-12-07 01:04:26,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-07 01:04:26,392 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION, t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-07 01:04:26,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:04:26,393 INFO L85 PathProgramCache]: Analyzing trace with hash 621951114, now seen corresponding path program 1 times [2021-12-07 01:04:26,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:04:26,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618568415] [2021-12-07 01:04:26,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:04:26,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:04:26,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:04:26,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:04:26,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:04:26,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618568415] [2021-12-07 01:04:26,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618568415] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:04:26,491 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:04:26,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 01:04:26,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031143118] [2021-12-07 01:04:26,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:04:26,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-07 01:04:26,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:04:26,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 01:04:26,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-07 01:04:26,495 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 183 [2021-12-07 01:04:26,497 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 174 transitions, 427 flow. Second operand has 8 states, 8 states have (on average 147.0) internal successors, (1176), 8 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:26,497 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:04:26,497 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 183 [2021-12-07 01:04:26,497 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:04:26,624 INFO L129 PetriNetUnfolder]: 9/473 cut-off events. [2021-12-07 01:04:26,624 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2021-12-07 01:04:26,625 INFO L84 FinitePrefix]: Finished finitePrefix Result has 665 conditions, 473 events. 9/473 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1489 event pairs, 0 based on Foata normal form. 1/456 useless extension candidates. Maximal degree in co-relation 604. Up to 58 conditions per place. [2021-12-07 01:04:26,630 INFO L132 encePairwiseOnDemand]: 169/183 looper letters, 29 selfloop transitions, 15 changer transitions 2/183 dead transitions. [2021-12-07 01:04:26,630 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 183 transitions, 533 flow [2021-12-07 01:04:26,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-07 01:04:26,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-07 01:04:26,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1495 transitions. [2021-12-07 01:04:26,634 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8169398907103825 [2021-12-07 01:04:26,634 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1495 transitions. [2021-12-07 01:04:26,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1495 transitions. [2021-12-07 01:04:26,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:04:26,635 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1495 transitions. [2021-12-07 01:04:26,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 149.5) internal successors, (1495), 10 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:26,641 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 183.0) internal successors, (2013), 11 states have internal predecessors, (2013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:26,642 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 183.0) internal successors, (2013), 11 states have internal predecessors, (2013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:26,642 INFO L186 Difference]: Start difference. First operand has 183 places, 174 transitions, 427 flow. Second operand 10 states and 1495 transitions. [2021-12-07 01:04:26,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 183 transitions, 533 flow [2021-12-07 01:04:26,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 183 transitions, 530 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-07 01:04:26,647 INFO L242 Difference]: Finished difference. Result has 192 places, 174 transitions, 468 flow [2021-12-07 01:04:26,647 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=424, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=468, PETRI_PLACES=192, PETRI_TRANSITIONS=174} [2021-12-07 01:04:26,648 INFO L334 CegarLoopForPetriNet]: 177 programPoint places, 15 predicate places. [2021-12-07 01:04:26,648 INFO L470 AbstractCegarLoop]: Abstraction has has 192 places, 174 transitions, 468 flow [2021-12-07 01:04:26,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 147.0) internal successors, (1176), 8 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:26,648 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:04:26,649 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:04:26,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-07 01:04:26,649 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION, t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-07 01:04:26,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:04:26,649 INFO L85 PathProgramCache]: Analyzing trace with hash 280756634, now seen corresponding path program 1 times [2021-12-07 01:04:26,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:04:26,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519104372] [2021-12-07 01:04:26,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:04:26,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:04:26,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:04:26,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:04:26,776 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:04:26,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519104372] [2021-12-07 01:04:26,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519104372] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:04:26,776 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:04:26,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-07 01:04:26,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946309411] [2021-12-07 01:04:26,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:04:26,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-07 01:04:26,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:04:26,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-07 01:04:26,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2021-12-07 01:04:26,781 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 183 [2021-12-07 01:04:26,783 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 174 transitions, 468 flow. Second operand has 13 states, 13 states have (on average 132.15384615384616) internal successors, (1718), 13 states have internal predecessors, (1718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:26,783 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:04:26,783 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 183 [2021-12-07 01:04:26,783 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:04:27,130 INFO L129 PetriNetUnfolder]: 42/496 cut-off events. [2021-12-07 01:04:27,131 INFO L130 PetriNetUnfolder]: For 75/75 co-relation queries the response was YES. [2021-12-07 01:04:27,131 INFO L84 FinitePrefix]: Finished finitePrefix Result has 806 conditions, 496 events. 42/496 cut-off events. For 75/75 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1747 event pairs, 0 based on Foata normal form. 1/487 useless extension candidates. Maximal degree in co-relation 739. Up to 38 conditions per place. [2021-12-07 01:04:27,133 INFO L132 encePairwiseOnDemand]: 164/183 looper letters, 70 selfloop transitions, 25 changer transitions 0/218 dead transitions. [2021-12-07 01:04:27,133 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 218 transitions, 782 flow [2021-12-07 01:04:27,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-07 01:04:27,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-12-07 01:04:27,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2306 transitions. [2021-12-07 01:04:27,140 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7412407585985213 [2021-12-07 01:04:27,140 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2306 transitions. [2021-12-07 01:04:27,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2306 transitions. [2021-12-07 01:04:27,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:04:27,142 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2306 transitions. [2021-12-07 01:04:27,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 135.64705882352942) internal successors, (2306), 17 states have internal predecessors, (2306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:27,151 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 183.0) internal successors, (3294), 18 states have internal predecessors, (3294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:27,152 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 183.0) internal successors, (3294), 18 states have internal predecessors, (3294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:27,152 INFO L186 Difference]: Start difference. First operand has 192 places, 174 transitions, 468 flow. Second operand 17 states and 2306 transitions. [2021-12-07 01:04:27,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 218 transitions, 782 flow [2021-12-07 01:04:27,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 218 transitions, 757 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-12-07 01:04:27,158 INFO L242 Difference]: Finished difference. Result has 207 places, 183 transitions, 576 flow [2021-12-07 01:04:27,158 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=451, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=576, PETRI_PLACES=207, PETRI_TRANSITIONS=183} [2021-12-07 01:04:27,159 INFO L334 CegarLoopForPetriNet]: 177 programPoint places, 30 predicate places. [2021-12-07 01:04:27,159 INFO L470 AbstractCegarLoop]: Abstraction has has 207 places, 183 transitions, 576 flow [2021-12-07 01:04:27,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 132.15384615384616) internal successors, (1718), 13 states have internal predecessors, (1718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:27,160 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:04:27,160 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:04:27,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-07 01:04:27,160 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION, t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-07 01:04:27,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:04:27,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1867276529, now seen corresponding path program 1 times [2021-12-07 01:04:27,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:04:27,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878578277] [2021-12-07 01:04:27,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:04:27,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:04:27,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:04:27,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:04:27,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:04:27,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878578277] [2021-12-07 01:04:27,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878578277] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:04:27,235 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:04:27,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 01:04:27,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314319300] [2021-12-07 01:04:27,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:04:27,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-07 01:04:27,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:04:27,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 01:04:27,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-07 01:04:27,237 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 183 [2021-12-07 01:04:27,239 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 183 transitions, 576 flow. Second operand has 8 states, 8 states have (on average 142.375) internal successors, (1139), 8 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:27,239 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:04:27,239 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 183 [2021-12-07 01:04:27,239 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:04:27,406 INFO L129 PetriNetUnfolder]: 12/462 cut-off events. [2021-12-07 01:04:27,406 INFO L130 PetriNetUnfolder]: For 147/147 co-relation queries the response was YES. [2021-12-07 01:04:27,407 INFO L84 FinitePrefix]: Finished finitePrefix Result has 770 conditions, 462 events. 12/462 cut-off events. For 147/147 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1429 event pairs, 0 based on Foata normal form. 2/454 useless extension candidates. Maximal degree in co-relation 699. Up to 32 conditions per place. [2021-12-07 01:04:27,409 INFO L132 encePairwiseOnDemand]: 171/183 looper letters, 48 selfloop transitions, 18 changer transitions 0/198 dead transitions. [2021-12-07 01:04:27,409 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 198 transitions, 740 flow [2021-12-07 01:04:27,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-07 01:04:27,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-07 01:04:27,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1607 transitions. [2021-12-07 01:04:27,415 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7983109786388475 [2021-12-07 01:04:27,415 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1607 transitions. [2021-12-07 01:04:27,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1607 transitions. [2021-12-07 01:04:27,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:04:27,416 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1607 transitions. [2021-12-07 01:04:27,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 146.0909090909091) internal successors, (1607), 11 states have internal predecessors, (1607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:27,424 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 183.0) internal successors, (2196), 12 states have internal predecessors, (2196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:27,426 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 183.0) internal successors, (2196), 12 states have internal predecessors, (2196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:27,426 INFO L186 Difference]: Start difference. First operand has 207 places, 183 transitions, 576 flow. Second operand 11 states and 1607 transitions. [2021-12-07 01:04:27,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 198 transitions, 740 flow [2021-12-07 01:04:27,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 198 transitions, 714 flow, removed 4 selfloop flow, removed 8 redundant places. [2021-12-07 01:04:27,434 INFO L242 Difference]: Finished difference. Result has 207 places, 181 transitions, 578 flow [2021-12-07 01:04:27,434 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=542, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=578, PETRI_PLACES=207, PETRI_TRANSITIONS=181} [2021-12-07 01:04:27,435 INFO L334 CegarLoopForPetriNet]: 177 programPoint places, 30 predicate places. [2021-12-07 01:04:27,435 INFO L470 AbstractCegarLoop]: Abstraction has has 207 places, 181 transitions, 578 flow [2021-12-07 01:04:27,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 142.375) internal successors, (1139), 8 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:27,436 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:04:27,436 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:04:27,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-07 01:04:27,437 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION, t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-07 01:04:27,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:04:27,437 INFO L85 PathProgramCache]: Analyzing trace with hash -590826818, now seen corresponding path program 1 times [2021-12-07 01:04:27,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:04:27,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830781167] [2021-12-07 01:04:27,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:04:27,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:04:27,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:04:27,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:04:27,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:04:27,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830781167] [2021-12-07 01:04:27,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830781167] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:04:27,588 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:04:27,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-07 01:04:27,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429599632] [2021-12-07 01:04:27,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:04:27,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-07 01:04:27,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:04:27,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-07 01:04:27,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-12-07 01:04:27,591 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 183 [2021-12-07 01:04:27,593 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 181 transitions, 578 flow. Second operand has 13 states, 13 states have (on average 136.46153846153845) internal successors, (1774), 13 states have internal predecessors, (1774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:27,593 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:04:27,593 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 183 [2021-12-07 01:04:27,593 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:04:27,838 INFO L129 PetriNetUnfolder]: 36/545 cut-off events. [2021-12-07 01:04:27,838 INFO L130 PetriNetUnfolder]: For 221/221 co-relation queries the response was YES. [2021-12-07 01:04:27,839 INFO L84 FinitePrefix]: Finished finitePrefix Result has 974 conditions, 545 events. 36/545 cut-off events. For 221/221 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 2014 event pairs, 13 based on Foata normal form. 1/537 useless extension candidates. Maximal degree in co-relation 906. Up to 85 conditions per place. [2021-12-07 01:04:27,841 INFO L132 encePairwiseOnDemand]: 165/183 looper letters, 38 selfloop transitions, 10 changer transitions 26/200 dead transitions. [2021-12-07 01:04:27,841 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 200 transitions, 762 flow [2021-12-07 01:04:27,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-07 01:04:27,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-12-07 01:04:27,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2210 transitions. [2021-12-07 01:04:27,846 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7547814207650273 [2021-12-07 01:04:27,846 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2210 transitions. [2021-12-07 01:04:27,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2210 transitions. [2021-12-07 01:04:27,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:04:27,847 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2210 transitions. [2021-12-07 01:04:27,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 138.125) internal successors, (2210), 16 states have internal predecessors, (2210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:27,855 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 183.0) internal successors, (3111), 17 states have internal predecessors, (3111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:27,856 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 183.0) internal successors, (3111), 17 states have internal predecessors, (3111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:27,856 INFO L186 Difference]: Start difference. First operand has 207 places, 181 transitions, 578 flow. Second operand 16 states and 2210 transitions. [2021-12-07 01:04:27,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 200 transitions, 762 flow [2021-12-07 01:04:27,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 200 transitions, 704 flow, removed 9 selfloop flow, removed 11 redundant places. [2021-12-07 01:04:27,862 INFO L242 Difference]: Finished difference. Result has 221 places, 170 transitions, 497 flow [2021-12-07 01:04:27,863 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=520, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=497, PETRI_PLACES=221, PETRI_TRANSITIONS=170} [2021-12-07 01:04:27,863 INFO L334 CegarLoopForPetriNet]: 177 programPoint places, 44 predicate places. [2021-12-07 01:04:27,863 INFO L470 AbstractCegarLoop]: Abstraction has has 221 places, 170 transitions, 497 flow [2021-12-07 01:04:27,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 136.46153846153845) internal successors, (1774), 13 states have internal predecessors, (1774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:27,864 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:04:27,864 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:04:27,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-07 01:04:27,865 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION, t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-07 01:04:27,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:04:27,865 INFO L85 PathProgramCache]: Analyzing trace with hash 2141442280, now seen corresponding path program 1 times [2021-12-07 01:04:27,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:04:27,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628435124] [2021-12-07 01:04:27,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:04:27,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:04:27,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:04:27,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:04:27,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:04:27,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628435124] [2021-12-07 01:04:27,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628435124] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:04:27,986 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:04:27,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 01:04:27,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66883476] [2021-12-07 01:04:27,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:04:27,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-07 01:04:27,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:04:27,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 01:04:27,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-07 01:04:27,988 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 183 [2021-12-07 01:04:27,989 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 170 transitions, 497 flow. Second operand has 8 states, 8 states have (on average 143.125) internal successors, (1145), 8 states have internal predecessors, (1145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:27,990 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:04:27,990 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 183 [2021-12-07 01:04:27,990 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:04:28,081 INFO L129 PetriNetUnfolder]: 15/339 cut-off events. [2021-12-07 01:04:28,081 INFO L130 PetriNetUnfolder]: For 122/122 co-relation queries the response was YES. [2021-12-07 01:04:28,082 INFO L84 FinitePrefix]: Finished finitePrefix Result has 584 conditions, 339 events. 15/339 cut-off events. For 122/122 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 790 event pairs, 7 based on Foata normal form. 2/334 useless extension candidates. Maximal degree in co-relation 559. Up to 30 conditions per place. [2021-12-07 01:04:28,083 INFO L132 encePairwiseOnDemand]: 176/183 looper letters, 29 selfloop transitions, 7 changer transitions 5/170 dead transitions. [2021-12-07 01:04:28,083 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 170 transitions, 547 flow [2021-12-07 01:04:28,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 01:04:28,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-07 01:04:28,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 876 transitions. [2021-12-07 01:04:28,085 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7978142076502732 [2021-12-07 01:04:28,085 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 876 transitions. [2021-12-07 01:04:28,085 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 876 transitions. [2021-12-07 01:04:28,086 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:04:28,086 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 876 transitions. [2021-12-07 01:04:28,088 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 146.0) internal successors, (876), 6 states have internal predecessors, (876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:28,089 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 183.0) internal successors, (1281), 7 states have internal predecessors, (1281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:28,090 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 183.0) internal successors, (1281), 7 states have internal predecessors, (1281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:28,090 INFO L186 Difference]: Start difference. First operand has 221 places, 170 transitions, 497 flow. Second operand 6 states and 876 transitions. [2021-12-07 01:04:28,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 170 transitions, 547 flow [2021-12-07 01:04:28,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 170 transitions, 477 flow, removed 14 selfloop flow, removed 22 redundant places. [2021-12-07 01:04:28,093 INFO L242 Difference]: Finished difference. Result has 182 places, 161 transitions, 386 flow [2021-12-07 01:04:28,094 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=391, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=386, PETRI_PLACES=182, PETRI_TRANSITIONS=161} [2021-12-07 01:04:28,094 INFO L334 CegarLoopForPetriNet]: 177 programPoint places, 5 predicate places. [2021-12-07 01:04:28,095 INFO L470 AbstractCegarLoop]: Abstraction has has 182 places, 161 transitions, 386 flow [2021-12-07 01:04:28,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 143.125) internal successors, (1145), 8 states have internal predecessors, (1145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:28,095 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:04:28,095 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:04:28,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-07 01:04:28,096 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION, t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-07 01:04:28,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:04:28,096 INFO L85 PathProgramCache]: Analyzing trace with hash -645913404, now seen corresponding path program 1 times [2021-12-07 01:04:28,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:04:28,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149536418] [2021-12-07 01:04:28,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:04:28,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:04:28,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:04:28,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:04:28,176 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:04:28,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149536418] [2021-12-07 01:04:28,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149536418] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:04:28,177 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:04:28,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 01:04:28,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959013911] [2021-12-07 01:04:28,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:04:28,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-07 01:04:28,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:04:28,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 01:04:28,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-07 01:04:28,179 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 183 [2021-12-07 01:04:28,181 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 161 transitions, 386 flow. Second operand has 8 states, 8 states have (on average 142.875) internal successors, (1143), 8 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:28,181 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:04:28,181 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 183 [2021-12-07 01:04:28,181 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:04:28,314 INFO L129 PetriNetUnfolder]: 12/360 cut-off events. [2021-12-07 01:04:28,314 INFO L130 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2021-12-07 01:04:28,315 INFO L84 FinitePrefix]: Finished finitePrefix Result has 518 conditions, 360 events. 12/360 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 839 event pairs, 0 based on Foata normal form. 2/352 useless extension candidates. Maximal degree in co-relation 456. Up to 21 conditions per place. [2021-12-07 01:04:28,316 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 24 selfloop transitions, 10 changer transitions 0/165 dead transitions. [2021-12-07 01:04:28,316 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 165 transitions, 462 flow [2021-12-07 01:04:28,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 01:04:28,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-07 01:04:28,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1295 transitions. [2021-12-07 01:04:28,319 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7862780813600486 [2021-12-07 01:04:28,319 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1295 transitions. [2021-12-07 01:04:28,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1295 transitions. [2021-12-07 01:04:28,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:04:28,320 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1295 transitions. [2021-12-07 01:04:28,322 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 143.88888888888889) internal successors, (1295), 9 states have internal predecessors, (1295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:28,324 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 183.0) internal successors, (1830), 10 states have internal predecessors, (1830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:28,325 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 183.0) internal successors, (1830), 10 states have internal predecessors, (1830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:28,325 INFO L186 Difference]: Start difference. First operand has 182 places, 161 transitions, 386 flow. Second operand 9 states and 1295 transitions. [2021-12-07 01:04:28,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 165 transitions, 462 flow [2021-12-07 01:04:28,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 165 transitions, 428 flow, removed 0 selfloop flow, removed 10 redundant places. [2021-12-07 01:04:28,330 INFO L242 Difference]: Finished difference. Result has 174 places, 159 transitions, 368 flow [2021-12-07 01:04:28,331 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=368, PETRI_PLACES=174, PETRI_TRANSITIONS=159} [2021-12-07 01:04:28,332 INFO L334 CegarLoopForPetriNet]: 177 programPoint places, -3 predicate places. [2021-12-07 01:04:28,332 INFO L470 AbstractCegarLoop]: Abstraction has has 174 places, 159 transitions, 368 flow [2021-12-07 01:04:28,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 142.875) internal successors, (1143), 8 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:28,332 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:04:28,333 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:04:28,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-07 01:04:28,333 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION, t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-07 01:04:28,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:04:28,334 INFO L85 PathProgramCache]: Analyzing trace with hash 194878886, now seen corresponding path program 1 times [2021-12-07 01:04:28,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:04:28,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503324961] [2021-12-07 01:04:28,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:04:28,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:04:28,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:04:28,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:04:28,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:04:28,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503324961] [2021-12-07 01:04:28,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503324961] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:04:28,419 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:04:28,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-07 01:04:28,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415823471] [2021-12-07 01:04:28,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:04:28,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-07 01:04:28,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:04:28,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-07 01:04:28,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-12-07 01:04:28,422 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 183 [2021-12-07 01:04:28,423 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 159 transitions, 368 flow. Second operand has 11 states, 11 states have (on average 138.9090909090909) internal successors, (1528), 11 states have internal predecessors, (1528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:28,423 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:04:28,424 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 183 [2021-12-07 01:04:28,424 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:04:28,655 INFO L129 PetriNetUnfolder]: 29/348 cut-off events. [2021-12-07 01:04:28,655 INFO L130 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2021-12-07 01:04:28,656 INFO L84 FinitePrefix]: Finished finitePrefix Result has 539 conditions, 348 events. 29/348 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 902 event pairs, 12 based on Foata normal form. 4/345 useless extension candidates. Maximal degree in co-relation 484. Up to 44 conditions per place. [2021-12-07 01:04:28,657 INFO L132 encePairwiseOnDemand]: 167/183 looper letters, 21 selfloop transitions, 14 changer transitions 20/178 dead transitions. [2021-12-07 01:04:28,657 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 178 transitions, 518 flow [2021-12-07 01:04:28,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-07 01:04:28,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-12-07 01:04:28,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2366 transitions. [2021-12-07 01:04:28,663 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7605271616843459 [2021-12-07 01:04:28,663 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2366 transitions. [2021-12-07 01:04:28,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2366 transitions. [2021-12-07 01:04:28,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:04:28,664 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2366 transitions. [2021-12-07 01:04:28,670 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 139.1764705882353) internal successors, (2366), 17 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:28,675 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 183.0) internal successors, (3294), 18 states have internal predecessors, (3294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:28,676 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 183.0) internal successors, (3294), 18 states have internal predecessors, (3294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:28,677 INFO L186 Difference]: Start difference. First operand has 174 places, 159 transitions, 368 flow. Second operand 17 states and 2366 transitions. [2021-12-07 01:04:28,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 178 transitions, 518 flow [2021-12-07 01:04:28,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 178 transitions, 490 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-12-07 01:04:28,681 INFO L242 Difference]: Finished difference. Result has 189 places, 158 transitions, 388 flow [2021-12-07 01:04:28,682 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=388, PETRI_PLACES=189, PETRI_TRANSITIONS=158} [2021-12-07 01:04:28,683 INFO L334 CegarLoopForPetriNet]: 177 programPoint places, 12 predicate places. [2021-12-07 01:04:28,683 INFO L470 AbstractCegarLoop]: Abstraction has has 189 places, 158 transitions, 388 flow [2021-12-07 01:04:28,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 138.9090909090909) internal successors, (1528), 11 states have internal predecessors, (1528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:28,683 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:04:28,684 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:04:28,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-07 01:04:28,684 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION, t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-07 01:04:28,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:04:28,684 INFO L85 PathProgramCache]: Analyzing trace with hash 776535328, now seen corresponding path program 1 times [2021-12-07 01:04:28,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:04:28,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346975921] [2021-12-07 01:04:28,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:04:28,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:04:28,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:04:28,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:04:28,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:04:28,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346975921] [2021-12-07 01:04:28,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346975921] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:04:28,846 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:04:28,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 01:04:28,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914469007] [2021-12-07 01:04:28,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:04:28,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-07 01:04:28,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:04:28,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 01:04:28,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-12-07 01:04:28,848 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 183 [2021-12-07 01:04:28,849 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 158 transitions, 388 flow. Second operand has 8 states, 8 states have (on average 143.75) internal successors, (1150), 8 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:28,849 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:04:28,849 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 183 [2021-12-07 01:04:28,849 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:04:28,933 INFO L129 PetriNetUnfolder]: 8/177 cut-off events. [2021-12-07 01:04:28,933 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2021-12-07 01:04:28,933 INFO L84 FinitePrefix]: Finished finitePrefix Result has 273 conditions, 177 events. 8/177 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 150 event pairs, 0 based on Foata normal form. 5/180 useless extension candidates. Maximal degree in co-relation 262. Up to 23 conditions per place. [2021-12-07 01:04:28,934 INFO L132 encePairwiseOnDemand]: 178/183 looper letters, 0 selfloop transitions, 0 changer transitions 147/147 dead transitions. [2021-12-07 01:04:28,934 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 147 transitions, 426 flow [2021-12-07 01:04:28,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 01:04:28,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-07 01:04:28,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 878 transitions. [2021-12-07 01:04:28,935 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7996357012750456 [2021-12-07 01:04:28,936 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 878 transitions. [2021-12-07 01:04:28,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 878 transitions. [2021-12-07 01:04:28,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:04:28,936 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 878 transitions. [2021-12-07 01:04:28,938 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 146.33333333333334) internal successors, (878), 6 states have internal predecessors, (878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:28,939 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 183.0) internal successors, (1281), 7 states have internal predecessors, (1281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:28,940 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 183.0) internal successors, (1281), 7 states have internal predecessors, (1281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:28,940 INFO L186 Difference]: Start difference. First operand has 189 places, 158 transitions, 388 flow. Second operand 6 states and 878 transitions. [2021-12-07 01:04:28,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 147 transitions, 426 flow [2021-12-07 01:04:28,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 147 transitions, 388 flow, removed 0 selfloop flow, removed 11 redundant places. [2021-12-07 01:04:28,943 INFO L242 Difference]: Finished difference. Result has 159 places, 0 transitions, 0 flow [2021-12-07 01:04:28,943 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=159, PETRI_TRANSITIONS=0} [2021-12-07 01:04:28,944 INFO L334 CegarLoopForPetriNet]: 177 programPoint places, -18 predicate places. [2021-12-07 01:04:28,944 INFO L470 AbstractCegarLoop]: Abstraction has has 159 places, 0 transitions, 0 flow [2021-12-07 01:04:28,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 143.75) internal successors, (1150), 8 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:28,946 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (6 of 7 remaining) [2021-12-07 01:04:28,947 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2021-12-07 01:04:28,947 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2021-12-07 01:04:28,947 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2021-12-07 01:04:28,947 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2021-12-07 01:04:28,948 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2021-12-07 01:04:28,948 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2021-12-07 01:04:28,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-07 01:04:28,952 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:04:28,956 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-12-07 01:04:28,957 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-07 01:04:28,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 01:04:28 BasicIcfg [2021-12-07 01:04:28,960 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-07 01:04:28,960 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-07 01:04:28,960 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-07 01:04:28,961 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-07 01:04:28,961 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:04:25" (3/4) ... [2021-12-07 01:04:28,963 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-07 01:04:28,967 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2021-12-07 01:04:28,971 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2021-12-07 01:04:28,971 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-07 01:04:28,972 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-07 01:04:28,972 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-07 01:04:29,001 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390887dc-6229-421a-a13f-644e808daf3f/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-07 01:04:29,001 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-07 01:04:29,001 INFO L158 Benchmark]: Toolchain (without parser) took 4669.79ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 85.8MB in the beginning and 107.4MB in the end (delta: -21.6MB). Peak memory consumption was 2.0MB. Max. memory is 16.1GB. [2021-12-07 01:04:29,002 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 123.7MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 01:04:29,002 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.02ms. Allocated memory is still 123.7MB. Free memory was 85.6MB in the beginning and 88.6MB in the end (delta: -3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-07 01:04:29,002 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.31ms. Allocated memory is still 123.7MB. Free memory was 88.6MB in the beginning and 85.9MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-07 01:04:29,003 INFO L158 Benchmark]: Boogie Preprocessor took 19.61ms. Allocated memory is still 123.7MB. Free memory was 85.9MB in the beginning and 84.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 01:04:29,003 INFO L158 Benchmark]: RCFGBuilder took 366.10ms. Allocated memory is still 123.7MB. Free memory was 84.4MB in the beginning and 69.2MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-07 01:04:29,003 INFO L158 Benchmark]: TraceAbstraction took 3862.52ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 68.6MB in the beginning and 110.5MB in the end (delta: -41.9MB). Peak memory consumption was 58.8MB. Max. memory is 16.1GB. [2021-12-07 01:04:29,004 INFO L158 Benchmark]: Witness Printer took 40.44ms. Allocated memory is still 148.9MB. Free memory was 110.5MB in the beginning and 107.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 01:04:29,005 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 123.7MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 341.02ms. Allocated memory is still 123.7MB. Free memory was 85.6MB in the beginning and 88.6MB in the end (delta: -3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.31ms. Allocated memory is still 123.7MB. Free memory was 88.6MB in the beginning and 85.9MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.61ms. Allocated memory is still 123.7MB. Free memory was 85.9MB in the beginning and 84.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 366.10ms. Allocated memory is still 123.7MB. Free memory was 84.4MB in the beginning and 69.2MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3862.52ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 68.6MB in the beginning and 110.5MB in the end (delta: -41.9MB). Peak memory consumption was 58.8MB. Max. memory is 16.1GB. * Witness Printer took 40.44ms. Allocated memory is still 148.9MB. Free memory was 110.5MB in the beginning and 107.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * 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 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 255 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: 3.7s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 929 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 929 mSDsluCounter, 1406 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1181 mSDsCounter, 142 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1112 IncrementalHoareTripleChecker+Invalid, 1254 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 142 mSolverCounterUnsat, 242 mSDtfsCounter, 1112 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 182 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=578occurred in iteration=5, InterpolantAutomatonStates: 116, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 1052 NumberOfCodeBlocks, 1052 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1042 ConstructedInterpolants, 0 QuantifiedInterpolants, 4815 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-12-07 01:04:29,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390887dc-6229-421a-a13f-644e808daf3f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE