./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46316aef-baa9-4d14-96af-d94adf6cb005/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46316aef-baa9-4d14-96af-d94adf6cb005/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46316aef-baa9-4d14-96af-d94adf6cb005/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46316aef-baa9-4d14-96af-d94adf6cb005/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46316aef-baa9-4d14-96af-d94adf6cb005/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46316aef-baa9-4d14-96af-d94adf6cb005/bin/uautomizer-J5u9QxTXDZ --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 a05fbc1d8a2048d37fda072c6a9d42f1f996d033c914869a4e2960aadff82dde --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 11:07:54,367 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 11:07:54,370 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 11:07:54,404 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 11:07:54,404 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 11:07:54,406 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 11:07:54,408 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 11:07:54,411 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 11:07:54,413 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 11:07:54,415 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 11:07:54,416 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 11:07:54,418 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 11:07:54,418 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 11:07:54,420 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 11:07:54,421 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 11:07:54,423 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 11:07:54,424 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 11:07:54,426 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 11:07:54,428 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 11:07:54,431 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 11:07:54,434 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 11:07:54,443 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 11:07:54,444 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 11:07:54,446 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 11:07:54,451 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 11:07:54,452 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 11:07:54,452 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 11:07:54,461 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 11:07:54,462 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 11:07:54,463 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 11:07:54,464 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 11:07:54,466 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 11:07:54,468 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 11:07:54,469 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 11:07:54,472 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 11:07:54,472 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 11:07:54,473 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 11:07:54,473 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 11:07:54,474 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 11:07:54,475 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 11:07:54,476 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 11:07:54,478 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46316aef-baa9-4d14-96af-d94adf6cb005/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-10-17 11:07:54,534 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 11:07:54,534 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 11:07:54,535 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 11:07:54,535 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 11:07:54,536 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 11:07:54,537 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 11:07:54,537 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 11:07:54,538 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 11:07:54,538 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 11:07:54,538 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 11:07:54,539 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 11:07:54,539 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 11:07:54,540 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 11:07:54,540 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 11:07:54,540 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 11:07:54,540 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 11:07:54,541 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 11:07:54,541 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 11:07:54,541 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 11:07:54,541 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 11:07:54,541 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 11:07:54,542 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 11:07:54,542 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 11:07:54,542 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 11:07:54,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 11:07:54,543 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 11:07:54,543 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 11:07:54,543 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 11:07:54,543 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 11:07:54,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 11:07:54,544 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 11:07:54,544 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 11:07:54,544 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 11:07:54,545 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_46316aef-baa9-4d14-96af-d94adf6cb005/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46316aef-baa9-4d14-96af-d94adf6cb005/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a05fbc1d8a2048d37fda072c6a9d42f1f996d033c914869a4e2960aadff82dde [2022-10-17 11:07:54,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 11:07:54,911 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 11:07:54,914 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 11:07:54,915 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 11:07:54,916 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 11:07:54,917 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46316aef-baa9-4d14-96af-d94adf6cb005/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2022-10-17 11:07:54,976 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46316aef-baa9-4d14-96af-d94adf6cb005/bin/uautomizer-J5u9QxTXDZ/data/f12322cdd/54ca4e4c79024002bf662b8ca23d213a/FLAGeeec51fc0 [2022-10-17 11:07:55,482 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 11:07:55,482 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46316aef-baa9-4d14-96af-d94adf6cb005/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2022-10-17 11:07:55,508 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46316aef-baa9-4d14-96af-d94adf6cb005/bin/uautomizer-J5u9QxTXDZ/data/f12322cdd/54ca4e4c79024002bf662b8ca23d213a/FLAGeeec51fc0 [2022-10-17 11:07:55,786 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46316aef-baa9-4d14-96af-d94adf6cb005/bin/uautomizer-J5u9QxTXDZ/data/f12322cdd/54ca4e4c79024002bf662b8ca23d213a [2022-10-17 11:07:55,789 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 11:07:55,790 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 11:07:55,792 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 11:07:55,793 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 11:07:55,796 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 11:07:55,797 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:07:55" (1/1) ... [2022-10-17 11:07:55,799 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6594e7b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:07:55, skipping insertion in model container [2022-10-17 11:07:55,799 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:07:55" (1/1) ... [2022-10-17 11:07:55,807 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 11:07:55,869 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 11:07:56,272 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_46316aef-baa9-4d14-96af-d94adf6cb005/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c[29656,29669] [2022-10-17 11:07:56,279 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:07:56,296 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 11:07:56,416 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_46316aef-baa9-4d14-96af-d94adf6cb005/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c[29656,29669] [2022-10-17 11:07:56,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:07:56,436 INFO L208 MainTranslator]: Completed translation [2022-10-17 11:07:56,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:07:56 WrapperNode [2022-10-17 11:07:56,437 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 11:07:56,438 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 11:07:56,438 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 11:07:56,438 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 11:07:56,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:07:56" (1/1) ... [2022-10-17 11:07:56,471 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:07:56" (1/1) ... [2022-10-17 11:07:56,541 INFO L138 Inliner]: procedures = 29, calls = 44, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 663 [2022-10-17 11:07:56,542 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 11:07:56,543 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 11:07:56,543 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 11:07:56,543 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 11:07:56,552 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:07:56" (1/1) ... [2022-10-17 11:07:56,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:07:56" (1/1) ... [2022-10-17 11:07:56,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:07:56" (1/1) ... [2022-10-17 11:07:56,568 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:07:56" (1/1) ... [2022-10-17 11:07:56,585 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:07:56" (1/1) ... [2022-10-17 11:07:56,606 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:07:56" (1/1) ... [2022-10-17 11:07:56,608 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:07:56" (1/1) ... [2022-10-17 11:07:56,612 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:07:56" (1/1) ... [2022-10-17 11:07:56,617 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 11:07:56,618 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 11:07:56,619 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 11:07:56,619 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 11:07:56,620 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:07:56" (1/1) ... [2022-10-17 11:07:56,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 11:07:56,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46316aef-baa9-4d14-96af-d94adf6cb005/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:07:56,655 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46316aef-baa9-4d14-96af-d94adf6cb005/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 11:07:56,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46316aef-baa9-4d14-96af-d94adf6cb005/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 11:07:56,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 11:07:56,708 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Complete [2022-10-17 11:07:56,708 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Complete [2022-10-17 11:07:56,708 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2022-10-17 11:07:56,709 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2022-10-17 11:07:56,709 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_CreateClose [2022-10-17 11:07:56,709 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_CreateClose [2022-10-17 11:07:56,709 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2022-10-17 11:07:56,709 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2022-10-17 11:07:56,709 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2022-10-17 11:07:56,709 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2022-10-17 11:07:56,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 11:07:56,710 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2022-10-17 11:07:56,710 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2022-10-17 11:07:56,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 11:07:56,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 11:07:56,710 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_DispatchPassThrough [2022-10-17 11:07:56,710 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_DispatchPassThrough [2022-10-17 11:07:56,841 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 11:07:56,844 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 11:07:57,073 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 11:07:57,092 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 11:07:57,095 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 11:07:57,099 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 11:07:57,103 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 11:07:57,660 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume !false; [2022-10-17 11:07:57,661 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##86: assume false; [2022-10-17 11:07:57,661 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##63: assume !false; [2022-10-17 11:07:57,661 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##62: assume false; [2022-10-17 11:07:57,661 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##129: assume false; [2022-10-17 11:07:57,661 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##130: assume !false; [2022-10-17 11:07:57,662 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2022-10-17 11:07:57,662 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2022-10-17 11:07:57,679 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##113: assume !false; [2022-10-17 11:07:57,679 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##112: assume false; [2022-10-17 11:07:57,690 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 11:07:57,712 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2022-10-17 11:07:57,712 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2022-10-17 11:07:57,721 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 11:07:57,730 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 11:07:57,730 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 11:07:57,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:07:57 BoogieIcfgContainer [2022-10-17 11:07:57,733 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 11:07:57,735 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 11:07:57,735 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 11:07:57,739 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 11:07:57,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 11:07:55" (1/3) ... [2022-10-17 11:07:57,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@620102c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:07:57, skipping insertion in model container [2022-10-17 11:07:57,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:07:56" (2/3) ... [2022-10-17 11:07:57,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@620102c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:07:57, skipping insertion in model container [2022-10-17 11:07:57,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:07:57" (3/3) ... [2022-10-17 11:07:57,742 INFO L112 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl2.cil-2.c [2022-10-17 11:07:57,760 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 11:07:57,761 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 11:07:57,815 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 11:07:57,821 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@298de55c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 11:07:57,822 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 11:07:57,827 INFO L276 IsEmpty]: Start isEmpty. Operand has 209 states, 171 states have (on average 1.5964912280701755) internal successors, (273), 189 states have internal predecessors, (273), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 27 states have call predecessors, (29), 29 states have call successors, (29) [2022-10-17 11:07:57,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 11:07:57,835 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:07:57,836 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:07:57,836 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:07:57,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:07:57,842 INFO L85 PathProgramCache]: Analyzing trace with hash -809123759, now seen corresponding path program 1 times [2022-10-17 11:07:57,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:07:57,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488322917] [2022-10-17 11:07:57,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:07:57,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:07:57,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:58,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:07:58,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:07:58,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488322917] [2022-10-17 11:07:58,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488322917] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:07:58,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:07:58,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 11:07:58,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821062212] [2022-10-17 11:07:58,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:07:58,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 11:07:58,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:07:58,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 11:07:58,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 11:07:58,143 INFO L87 Difference]: Start difference. First operand has 209 states, 171 states have (on average 1.5964912280701755) internal successors, (273), 189 states have internal predecessors, (273), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 27 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:07:58,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:07:58,229 INFO L93 Difference]: Finished difference Result 340 states and 533 transitions. [2022-10-17 11:07:58,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 11:07:58,232 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-10-17 11:07:58,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:07:58,244 INFO L225 Difference]: With dead ends: 340 [2022-10-17 11:07:58,244 INFO L226 Difference]: Without dead ends: 201 [2022-10-17 11:07:58,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 11:07:58,253 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 178 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 11:07:58,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 417 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 11:07:58,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2022-10-17 11:07:58,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2022-10-17 11:07:58,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 165 states have (on average 1.5272727272727273) internal successors, (252), 181 states have internal predecessors, (252), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-10-17 11:07:58,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 296 transitions. [2022-10-17 11:07:58,313 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 296 transitions. Word has length 13 [2022-10-17 11:07:58,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:07:58,314 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 296 transitions. [2022-10-17 11:07:58,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:07:58,315 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 296 transitions. [2022-10-17 11:07:58,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-17 11:07:58,316 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:07:58,316 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:07:58,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 11:07:58,317 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:07:58,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:07:58,318 INFO L85 PathProgramCache]: Analyzing trace with hash 705160648, now seen corresponding path program 1 times [2022-10-17 11:07:58,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:07:58,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321265740] [2022-10-17 11:07:58,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:07:58,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:07:58,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:58,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:07:58,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:07:58,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321265740] [2022-10-17 11:07:58,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321265740] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:07:58,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:07:58,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 11:07:58,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296962534] [2022-10-17 11:07:58,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:07:58,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 11:07:58,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:07:58,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 11:07:58,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 11:07:58,568 INFO L87 Difference]: Start difference. First operand 201 states and 296 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:07:58,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:07:58,721 INFO L93 Difference]: Finished difference Result 323 states and 461 transitions. [2022-10-17 11:07:58,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 11:07:58,722 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-10-17 11:07:58,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:07:58,725 INFO L225 Difference]: With dead ends: 323 [2022-10-17 11:07:58,725 INFO L226 Difference]: Without dead ends: 268 [2022-10-17 11:07:58,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 11:07:58,728 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 205 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 11:07:58,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 440 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 11:07:58,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2022-10-17 11:07:58,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 252. [2022-10-17 11:07:58,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 215 states have (on average 1.4325581395348836) internal successors, (308), 218 states have internal predecessors, (308), 26 states have call successors, (26), 11 states have call predecessors, (26), 10 states have return successors, (27), 25 states have call predecessors, (27), 18 states have call successors, (27) [2022-10-17 11:07:58,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 361 transitions. [2022-10-17 11:07:58,781 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 361 transitions. Word has length 19 [2022-10-17 11:07:58,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:07:58,782 INFO L495 AbstractCegarLoop]: Abstraction has 252 states and 361 transitions. [2022-10-17 11:07:58,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:07:58,782 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 361 transitions. [2022-10-17 11:07:58,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-17 11:07:58,783 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:07:58,784 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:07:58,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 11:07:58,784 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:07:58,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:07:58,785 INFO L85 PathProgramCache]: Analyzing trace with hash -2016043499, now seen corresponding path program 1 times [2022-10-17 11:07:58,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:07:58,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193538914] [2022-10-17 11:07:58,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:07:58,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:07:58,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:58,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:07:58,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:07:58,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193538914] [2022-10-17 11:07:58,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193538914] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:07:58,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:07:58,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 11:07:58,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069220932] [2022-10-17 11:07:58,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:07:58,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 11:07:58,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:07:58,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 11:07:58,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 11:07:58,861 INFO L87 Difference]: Start difference. First operand 252 states and 361 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:07:58,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:07:58,901 INFO L93 Difference]: Finished difference Result 411 states and 569 transitions. [2022-10-17 11:07:58,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 11:07:58,902 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-10-17 11:07:58,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:07:58,905 INFO L225 Difference]: With dead ends: 411 [2022-10-17 11:07:58,905 INFO L226 Difference]: Without dead ends: 312 [2022-10-17 11:07:58,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 11:07:58,908 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 242 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 11:07:58,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 360 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 11:07:58,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2022-10-17 11:07:58,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 290. [2022-10-17 11:07:58,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 255 states have (on average 1.419607843137255) internal successors, (362), 256 states have internal predecessors, (362), 22 states have call successors, (22), 11 states have call predecessors, (22), 12 states have return successors, (26), 23 states have call predecessors, (26), 16 states have call successors, (26) [2022-10-17 11:07:58,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 410 transitions. [2022-10-17 11:07:58,955 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 410 transitions. Word has length 18 [2022-10-17 11:07:58,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:07:58,955 INFO L495 AbstractCegarLoop]: Abstraction has 290 states and 410 transitions. [2022-10-17 11:07:58,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:07:58,956 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 410 transitions. [2022-10-17 11:07:58,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-17 11:07:58,958 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:07:58,959 INFO L195 NwaCegarLoop]: 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] [2022-10-17 11:07:58,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 11:07:58,959 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:07:58,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:07:58,963 INFO L85 PathProgramCache]: Analyzing trace with hash 2075722554, now seen corresponding path program 1 times [2022-10-17 11:07:58,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:07:58,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109637800] [2022-10-17 11:07:58,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:07:58,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:07:58,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:59,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:07:59,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:07:59,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109637800] [2022-10-17 11:07:59,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109637800] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:07:59,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:07:59,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 11:07:59,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588041648] [2022-10-17 11:07:59,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:07:59,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 11:07:59,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:07:59,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 11:07:59,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 11:07:59,107 INFO L87 Difference]: Start difference. First operand 290 states and 410 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:07:59,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:07:59,199 INFO L93 Difference]: Finished difference Result 293 states and 412 transitions. [2022-10-17 11:07:59,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 11:07:59,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-10-17 11:07:59,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:07:59,204 INFO L225 Difference]: With dead ends: 293 [2022-10-17 11:07:59,204 INFO L226 Difference]: Without dead ends: 289 [2022-10-17 11:07:59,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 11:07:59,212 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 25 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 11:07:59,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 476 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 11:07:59,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2022-10-17 11:07:59,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 289. [2022-10-17 11:07:59,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 255 states have (on average 1.411764705882353) internal successors, (360), 255 states have internal predecessors, (360), 21 states have call successors, (21), 11 states have call predecessors, (21), 12 states have return successors, (26), 23 states have call predecessors, (26), 16 states have call successors, (26) [2022-10-17 11:07:59,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 407 transitions. [2022-10-17 11:07:59,242 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 407 transitions. Word has length 29 [2022-10-17 11:07:59,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:07:59,243 INFO L495 AbstractCegarLoop]: Abstraction has 289 states and 407 transitions. [2022-10-17 11:07:59,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:07:59,244 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 407 transitions. [2022-10-17 11:07:59,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-17 11:07:59,250 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:07:59,251 INFO L195 NwaCegarLoop]: 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] [2022-10-17 11:07:59,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-17 11:07:59,251 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:07:59,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:07:59,252 INFO L85 PathProgramCache]: Analyzing trace with hash -889185583, now seen corresponding path program 1 times [2022-10-17 11:07:59,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:07:59,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119510208] [2022-10-17 11:07:59,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:07:59,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:07:59,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:59,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-17 11:07:59,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:59,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:07:59,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:07:59,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119510208] [2022-10-17 11:07:59,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119510208] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:07:59,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:07:59,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 11:07:59,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653715369] [2022-10-17 11:07:59,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:07:59,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 11:07:59,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:07:59,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 11:07:59,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-17 11:07:59,475 INFO L87 Difference]: Start difference. First operand 289 states and 407 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 11:07:59,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:07:59,782 INFO L93 Difference]: Finished difference Result 315 states and 437 transitions. [2022-10-17 11:07:59,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 11:07:59,782 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2022-10-17 11:07:59,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:07:59,789 INFO L225 Difference]: With dead ends: 315 [2022-10-17 11:07:59,789 INFO L226 Difference]: Without dead ends: 306 [2022-10-17 11:07:59,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-10-17 11:07:59,795 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 323 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-17 11:07:59,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 823 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-17 11:07:59,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2022-10-17 11:07:59,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 301. [2022-10-17 11:07:59,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 267 states have (on average 1.404494382022472) internal successors, (375), 266 states have internal predecessors, (375), 21 states have call successors, (21), 11 states have call predecessors, (21), 12 states have return successors, (26), 23 states have call predecessors, (26), 16 states have call successors, (26) [2022-10-17 11:07:59,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 422 transitions. [2022-10-17 11:07:59,846 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 422 transitions. Word has length 33 [2022-10-17 11:07:59,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:07:59,846 INFO L495 AbstractCegarLoop]: Abstraction has 301 states and 422 transitions. [2022-10-17 11:07:59,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 11:07:59,846 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 422 transitions. [2022-10-17 11:07:59,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-17 11:07:59,848 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:07:59,848 INFO L195 NwaCegarLoop]: 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] [2022-10-17 11:07:59,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-17 11:07:59,848 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:07:59,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:07:59,850 INFO L85 PathProgramCache]: Analyzing trace with hash 2121154083, now seen corresponding path program 1 times [2022-10-17 11:07:59,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:07:59,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499993816] [2022-10-17 11:07:59,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:07:59,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:07:59,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:00,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-17 11:08:00,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:00,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:08:00,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:08:00,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499993816] [2022-10-17 11:08:00,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499993816] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:08:00,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:08:00,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 11:08:00,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916402100] [2022-10-17 11:08:00,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:08:00,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 11:08:00,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:08:00,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 11:08:00,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-17 11:08:00,066 INFO L87 Difference]: Start difference. First operand 301 states and 422 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 11:08:00,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:08:00,316 INFO L93 Difference]: Finished difference Result 311 states and 430 transitions. [2022-10-17 11:08:00,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 11:08:00,316 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2022-10-17 11:08:00,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:08:00,319 INFO L225 Difference]: With dead ends: 311 [2022-10-17 11:08:00,320 INFO L226 Difference]: Without dead ends: 306 [2022-10-17 11:08:00,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-10-17 11:08:00,325 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 331 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-17 11:08:00,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 632 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-17 11:08:00,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2022-10-17 11:08:00,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 301. [2022-10-17 11:08:00,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 267 states have (on average 1.400749063670412) internal successors, (374), 266 states have internal predecessors, (374), 21 states have call successors, (21), 11 states have call predecessors, (21), 12 states have return successors, (26), 23 states have call predecessors, (26), 16 states have call successors, (26) [2022-10-17 11:08:00,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 421 transitions. [2022-10-17 11:08:00,371 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 421 transitions. Word has length 34 [2022-10-17 11:08:00,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:08:00,374 INFO L495 AbstractCegarLoop]: Abstraction has 301 states and 421 transitions. [2022-10-17 11:08:00,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 11:08:00,374 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 421 transitions. [2022-10-17 11:08:00,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-17 11:08:00,378 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:08:00,378 INFO L195 NwaCegarLoop]: 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] [2022-10-17 11:08:00,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-17 11:08:00,379 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:08:00,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:08:00,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1780979361, now seen corresponding path program 1 times [2022-10-17 11:08:00,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:08:00,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386518756] [2022-10-17 11:08:00,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:08:00,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:08:00,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:00,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-17 11:08:00,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:00,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:08:00,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:08:00,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386518756] [2022-10-17 11:08:00,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386518756] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:08:00,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:08:00,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 11:08:00,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319054620] [2022-10-17 11:08:00,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:08:00,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 11:08:00,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:08:00,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 11:08:00,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 11:08:00,465 INFO L87 Difference]: Start difference. First operand 301 states and 421 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 11:08:00,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:08:00,678 INFO L93 Difference]: Finished difference Result 340 states and 460 transitions. [2022-10-17 11:08:00,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 11:08:00,679 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2022-10-17 11:08:00,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:08:00,682 INFO L225 Difference]: With dead ends: 340 [2022-10-17 11:08:00,682 INFO L226 Difference]: Without dead ends: 282 [2022-10-17 11:08:00,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-10-17 11:08:00,685 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 317 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 11:08:00,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 739 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 11:08:00,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2022-10-17 11:08:00,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 268. [2022-10-17 11:08:00,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 236 states have (on average 1.3898305084745763) internal successors, (328), 235 states have internal predecessors, (328), 19 states have call successors, (19), 10 states have call predecessors, (19), 12 states have return successors, (23), 22 states have call predecessors, (23), 14 states have call successors, (23) [2022-10-17 11:08:00,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 370 transitions. [2022-10-17 11:08:00,723 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 370 transitions. Word has length 34 [2022-10-17 11:08:00,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:08:00,723 INFO L495 AbstractCegarLoop]: Abstraction has 268 states and 370 transitions. [2022-10-17 11:08:00,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 11:08:00,724 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 370 transitions. [2022-10-17 11:08:00,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-17 11:08:00,729 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:08:00,729 INFO L195 NwaCegarLoop]: 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] [2022-10-17 11:08:00,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-17 11:08:00,730 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:08:00,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:08:00,730 INFO L85 PathProgramCache]: Analyzing trace with hash -2069817079, now seen corresponding path program 1 times [2022-10-17 11:08:00,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:08:00,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219162917] [2022-10-17 11:08:00,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:08:00,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:08:00,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:00,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:08:00,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:08:00,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219162917] [2022-10-17 11:08:00,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219162917] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:08:00,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:08:00,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 11:08:00,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551295894] [2022-10-17 11:08:00,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:08:00,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 11:08:00,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:08:00,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 11:08:00,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 11:08:00,820 INFO L87 Difference]: Start difference. First operand 268 states and 370 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:08:00,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:08:00,976 INFO L93 Difference]: Finished difference Result 329 states and 444 transitions. [2022-10-17 11:08:00,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 11:08:00,977 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-10-17 11:08:00,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:08:00,980 INFO L225 Difference]: With dead ends: 329 [2022-10-17 11:08:00,980 INFO L226 Difference]: Without dead ends: 290 [2022-10-17 11:08:00,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 11:08:00,982 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 296 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 11:08:00,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 430 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 11:08:00,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-10-17 11:08:01,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 268. [2022-10-17 11:08:01,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 236 states have (on average 1.38135593220339) internal successors, (326), 235 states have internal predecessors, (326), 19 states have call successors, (19), 10 states have call predecessors, (19), 12 states have return successors, (23), 22 states have call predecessors, (23), 14 states have call successors, (23) [2022-10-17 11:08:01,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 368 transitions. [2022-10-17 11:08:01,019 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 368 transitions. Word has length 34 [2022-10-17 11:08:01,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:08:01,020 INFO L495 AbstractCegarLoop]: Abstraction has 268 states and 368 transitions. [2022-10-17 11:08:01,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:08:01,020 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 368 transitions. [2022-10-17 11:08:01,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-17 11:08:01,021 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:08:01,021 INFO L195 NwaCegarLoop]: 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] [2022-10-17 11:08:01,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-17 11:08:01,022 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:08:01,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:08:01,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1120484039, now seen corresponding path program 1 times [2022-10-17 11:08:01,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:08:01,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567370457] [2022-10-17 11:08:01,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:08:01,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:08:01,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:01,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-17 11:08:01,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:01,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:08:01,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:08:01,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567370457] [2022-10-17 11:08:01,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567370457] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:08:01,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:08:01,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 11:08:01,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497268236] [2022-10-17 11:08:01,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:08:01,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 11:08:01,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:08:01,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 11:08:01,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 11:08:01,094 INFO L87 Difference]: Start difference. First operand 268 states and 368 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 11:08:01,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:08:01,216 INFO L93 Difference]: Finished difference Result 286 states and 390 transitions. [2022-10-17 11:08:01,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 11:08:01,216 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2022-10-17 11:08:01,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:08:01,218 INFO L225 Difference]: With dead ends: 286 [2022-10-17 11:08:01,219 INFO L226 Difference]: Without dead ends: 232 [2022-10-17 11:08:01,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 11:08:01,221 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 289 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 11:08:01,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 425 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 11:08:01,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2022-10-17 11:08:01,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 210. [2022-10-17 11:08:01,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 186 states have (on average 1.39247311827957) internal successors, (259), 189 states have internal predecessors, (259), 16 states have call successors, (16), 8 states have call predecessors, (16), 7 states have return successors, (12), 12 states have call predecessors, (12), 11 states have call successors, (12) [2022-10-17 11:08:01,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 287 transitions. [2022-10-17 11:08:01,261 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 287 transitions. Word has length 35 [2022-10-17 11:08:01,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:08:01,262 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 287 transitions. [2022-10-17 11:08:01,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 11:08:01,263 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 287 transitions. [2022-10-17 11:08:01,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-17 11:08:01,264 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:08:01,265 INFO L195 NwaCegarLoop]: 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] [2022-10-17 11:08:01,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-17 11:08:01,265 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:08:01,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:08:01,266 INFO L85 PathProgramCache]: Analyzing trace with hash -152990302, now seen corresponding path program 1 times [2022-10-17 11:08:01,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:08:01,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375087870] [2022-10-17 11:08:01,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:08:01,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:08:01,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:01,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-17 11:08:01,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:01,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-17 11:08:01,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:01,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:08:01,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:08:01,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375087870] [2022-10-17 11:08:01,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375087870] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:08:01,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:08:01,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 11:08:01,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25296152] [2022-10-17 11:08:01,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:08:01,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 11:08:01,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:08:01,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 11:08:01,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 11:08:01,331 INFO L87 Difference]: Start difference. First operand 210 states and 287 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-17 11:08:01,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:08:01,495 INFO L93 Difference]: Finished difference Result 234 states and 316 transitions. [2022-10-17 11:08:01,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-17 11:08:01,496 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 39 [2022-10-17 11:08:01,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:08:01,498 INFO L225 Difference]: With dead ends: 234 [2022-10-17 11:08:01,498 INFO L226 Difference]: Without dead ends: 208 [2022-10-17 11:08:01,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-17 11:08:01,500 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 84 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 816 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 11:08:01,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 816 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 11:08:01,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-10-17 11:08:01,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2022-10-17 11:08:01,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 185 states have (on average 1.3837837837837839) internal successors, (256), 187 states have internal predecessors, (256), 15 states have call successors, (15), 8 states have call predecessors, (15), 7 states have return successors, (12), 12 states have call predecessors, (12), 11 states have call successors, (12) [2022-10-17 11:08:01,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 283 transitions. [2022-10-17 11:08:01,532 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 283 transitions. Word has length 39 [2022-10-17 11:08:01,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:08:01,533 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 283 transitions. [2022-10-17 11:08:01,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-17 11:08:01,534 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 283 transitions. [2022-10-17 11:08:01,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-17 11:08:01,535 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:08:01,536 INFO L195 NwaCegarLoop]: 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] [2022-10-17 11:08:01,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-17 11:08:01,536 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:08:01,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:08:01,537 INFO L85 PathProgramCache]: Analyzing trace with hash 143802695, now seen corresponding path program 1 times [2022-10-17 11:08:01,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:08:01,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638435391] [2022-10-17 11:08:01,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:08:01,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:08:01,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:01,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:08:01,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:08:01,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638435391] [2022-10-17 11:08:01,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638435391] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:08:01,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:08:01,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 11:08:01,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278370489] [2022-10-17 11:08:01,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:08:01,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 11:08:01,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:08:01,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 11:08:01,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-17 11:08:01,660 INFO L87 Difference]: Start difference. First operand 208 states and 283 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:08:01,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:08:01,763 INFO L93 Difference]: Finished difference Result 220 states and 295 transitions. [2022-10-17 11:08:01,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 11:08:01,763 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-10-17 11:08:01,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:08:01,766 INFO L225 Difference]: With dead ends: 220 [2022-10-17 11:08:01,766 INFO L226 Difference]: Without dead ends: 186 [2022-10-17 11:08:01,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-10-17 11:08:01,767 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 36 mSDsluCounter, 922 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 1166 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 11:08:01,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 1166 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 11:08:01,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2022-10-17 11:08:01,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2022-10-17 11:08:01,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 163 states have (on average 1.3742331288343559) internal successors, (224), 165 states have internal predecessors, (224), 15 states have call successors, (15), 8 states have call predecessors, (15), 7 states have return successors, (12), 12 states have call predecessors, (12), 11 states have call successors, (12) [2022-10-17 11:08:01,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 251 transitions. [2022-10-17 11:08:01,791 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 251 transitions. Word has length 37 [2022-10-17 11:08:01,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:08:01,791 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 251 transitions. [2022-10-17 11:08:01,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:08:01,792 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 251 transitions. [2022-10-17 11:08:01,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-17 11:08:01,792 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:08:01,793 INFO L195 NwaCegarLoop]: 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] [2022-10-17 11:08:01,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-17 11:08:01,793 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:08:01,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:08:01,793 INFO L85 PathProgramCache]: Analyzing trace with hash 793066956, now seen corresponding path program 1 times [2022-10-17 11:08:01,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:08:01,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408142442] [2022-10-17 11:08:01,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:08:01,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:08:01,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:01,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-17 11:08:01,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:02,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 11:08:02,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:02,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:08:02,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:08:02,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408142442] [2022-10-17 11:08:02,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408142442] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:08:02,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:08:02,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-17 11:08:02,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647445965] [2022-10-17 11:08:02,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:08:02,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-17 11:08:02,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:08:02,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-17 11:08:02,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-10-17 11:08:02,010 INFO L87 Difference]: Start difference. First operand 186 states and 251 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-17 11:08:02,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:08:02,200 INFO L93 Difference]: Finished difference Result 267 states and 354 transitions. [2022-10-17 11:08:02,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-17 11:08:02,201 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 41 [2022-10-17 11:08:02,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:08:02,203 INFO L225 Difference]: With dead ends: 267 [2022-10-17 11:08:02,203 INFO L226 Difference]: Without dead ends: 204 [2022-10-17 11:08:02,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-10-17 11:08:02,204 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 88 mSDsluCounter, 937 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 1140 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 11:08:02,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 1140 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 11:08:02,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-10-17 11:08:02,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 194. [2022-10-17 11:08:02,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 170 states have (on average 1.3647058823529412) internal successors, (232), 172 states have internal predecessors, (232), 15 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (13), 13 states have call predecessors, (13), 11 states have call successors, (13) [2022-10-17 11:08:02,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 260 transitions. [2022-10-17 11:08:02,233 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 260 transitions. Word has length 41 [2022-10-17 11:08:02,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:08:02,234 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 260 transitions. [2022-10-17 11:08:02,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-17 11:08:02,234 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 260 transitions. [2022-10-17 11:08:02,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-10-17 11:08:02,235 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:08:02,236 INFO L195 NwaCegarLoop]: 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] [2022-10-17 11:08:02,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-17 11:08:02,236 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:08:02,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:08:02,236 INFO L85 PathProgramCache]: Analyzing trace with hash 493706385, now seen corresponding path program 1 times [2022-10-17 11:08:02,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:08:02,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104442941] [2022-10-17 11:08:02,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:08:02,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:08:02,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:02,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-17 11:08:02,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:02,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 11:08:02,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:02,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:08:02,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:08:02,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104442941] [2022-10-17 11:08:02,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104442941] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:08:02,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:08:02,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-17 11:08:02,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684633812] [2022-10-17 11:08:02,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:08:02,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-17 11:08:02,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:08:02,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-17 11:08:02,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-10-17 11:08:02,365 INFO L87 Difference]: Start difference. First operand 194 states and 260 transitions. Second operand has 8 states, 8 states have (on average 4.625) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-17 11:08:02,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:08:02,616 INFO L93 Difference]: Finished difference Result 221 states and 292 transitions. [2022-10-17 11:08:02,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-17 11:08:02,617 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 43 [2022-10-17 11:08:02,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:08:02,618 INFO L225 Difference]: With dead ends: 221 [2022-10-17 11:08:02,618 INFO L226 Difference]: Without dead ends: 214 [2022-10-17 11:08:02,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2022-10-17 11:08:02,620 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 119 mSDsluCounter, 1058 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 1272 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 11:08:02,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 1272 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 11:08:02,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-10-17 11:08:02,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 195. [2022-10-17 11:08:02,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 171 states have (on average 1.3625730994152048) internal successors, (233), 173 states have internal predecessors, (233), 15 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (13), 13 states have call predecessors, (13), 11 states have call successors, (13) [2022-10-17 11:08:02,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 261 transitions. [2022-10-17 11:08:02,645 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 261 transitions. Word has length 43 [2022-10-17 11:08:02,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:08:02,645 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 261 transitions. [2022-10-17 11:08:02,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-17 11:08:02,645 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 261 transitions. [2022-10-17 11:08:02,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-17 11:08:02,646 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:08:02,647 INFO L195 NwaCegarLoop]: 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] [2022-10-17 11:08:02,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-17 11:08:02,647 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:08:02,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:08:02,647 INFO L85 PathProgramCache]: Analyzing trace with hash 149096210, now seen corresponding path program 1 times [2022-10-17 11:08:02,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:08:02,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123117446] [2022-10-17 11:08:02,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:08:02,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:08:02,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:02,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-17 11:08:02,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:02,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 11:08:02,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:02,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:08:02,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:08:02,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123117446] [2022-10-17 11:08:02,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123117446] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:08:02,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:08:02,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 11:08:02,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525739792] [2022-10-17 11:08:02,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:08:02,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 11:08:02,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:08:02,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 11:08:02,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-17 11:08:02,710 INFO L87 Difference]: Start difference. First operand 195 states and 261 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-17 11:08:02,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:08:02,837 INFO L93 Difference]: Finished difference Result 211 states and 278 transitions. [2022-10-17 11:08:02,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 11:08:02,837 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 42 [2022-10-17 11:08:02,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:08:02,840 INFO L225 Difference]: With dead ends: 211 [2022-10-17 11:08:02,841 INFO L226 Difference]: Without dead ends: 206 [2022-10-17 11:08:02,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-10-17 11:08:02,842 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 81 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 11:08:02,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 559 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 11:08:02,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-10-17 11:08:02,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 197. [2022-10-17 11:08:02,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 173 states have (on average 1.3526011560693643) internal successors, (234), 175 states have internal predecessors, (234), 15 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (13), 13 states have call predecessors, (13), 11 states have call successors, (13) [2022-10-17 11:08:02,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 262 transitions. [2022-10-17 11:08:02,870 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 262 transitions. Word has length 42 [2022-10-17 11:08:02,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:08:02,870 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 262 transitions. [2022-10-17 11:08:02,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-17 11:08:02,871 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 262 transitions. [2022-10-17 11:08:02,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-17 11:08:02,872 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:08:02,872 INFO L195 NwaCegarLoop]: 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] [2022-10-17 11:08:02,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-17 11:08:02,872 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:08:02,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:08:02,873 INFO L85 PathProgramCache]: Analyzing trace with hash 423879184, now seen corresponding path program 1 times [2022-10-17 11:08:02,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:08:02,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102537960] [2022-10-17 11:08:02,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:08:02,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:08:02,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:02,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-17 11:08:02,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:02,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 11:08:02,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:02,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:08:02,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:08:02,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102537960] [2022-10-17 11:08:02,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102537960] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:08:02,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:08:02,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 11:08:02,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286473659] [2022-10-17 11:08:02,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:08:02,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 11:08:02,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:08:02,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 11:08:02,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-17 11:08:02,963 INFO L87 Difference]: Start difference. First operand 197 states and 262 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-17 11:08:03,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:08:03,150 INFO L93 Difference]: Finished difference Result 386 states and 514 transitions. [2022-10-17 11:08:03,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 11:08:03,151 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2022-10-17 11:08:03,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:08:03,153 INFO L225 Difference]: With dead ends: 386 [2022-10-17 11:08:03,153 INFO L226 Difference]: Without dead ends: 379 [2022-10-17 11:08:03,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-17 11:08:03,154 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 300 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 11:08:03,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 592 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 11:08:03,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2022-10-17 11:08:03,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 344. [2022-10-17 11:08:03,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 305 states have (on average 1.380327868852459) internal successors, (421), 312 states have internal predecessors, (421), 23 states have call successors, (23), 13 states have call predecessors, (23), 15 states have return successors, (23), 18 states have call predecessors, (23), 19 states have call successors, (23) [2022-10-17 11:08:03,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 467 transitions. [2022-10-17 11:08:03,197 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 467 transitions. Word has length 44 [2022-10-17 11:08:03,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:08:03,197 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 467 transitions. [2022-10-17 11:08:03,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-17 11:08:03,197 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 467 transitions. [2022-10-17 11:08:03,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-17 11:08:03,199 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:08:03,199 INFO L195 NwaCegarLoop]: 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] [2022-10-17 11:08:03,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-17 11:08:03,199 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:08:03,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:08:03,200 INFO L85 PathProgramCache]: Analyzing trace with hash -2096080750, now seen corresponding path program 1 times [2022-10-17 11:08:03,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:08:03,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817348711] [2022-10-17 11:08:03,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:08:03,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:08:03,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:03,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-17 11:08:03,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:03,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 11:08:03,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:03,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:08:03,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:08:03,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817348711] [2022-10-17 11:08:03,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817348711] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:08:03,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:08:03,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-17 11:08:03,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264144723] [2022-10-17 11:08:03,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:08:03,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-17 11:08:03,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:08:03,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 11:08:03,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-17 11:08:03,359 INFO L87 Difference]: Start difference. First operand 344 states and 467 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-17 11:08:03,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:08:03,529 INFO L93 Difference]: Finished difference Result 404 states and 537 transitions. [2022-10-17 11:08:03,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 11:08:03,530 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 44 [2022-10-17 11:08:03,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:08:03,532 INFO L225 Difference]: With dead ends: 404 [2022-10-17 11:08:03,532 INFO L226 Difference]: Without dead ends: 332 [2022-10-17 11:08:03,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-17 11:08:03,533 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 53 mSDsluCounter, 919 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 1138 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 11:08:03,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 1138 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 11:08:03,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2022-10-17 11:08:03,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2022-10-17 11:08:03,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 293 states have (on average 1.3754266211604096) internal successors, (403), 300 states have internal predecessors, (403), 23 states have call successors, (23), 13 states have call predecessors, (23), 15 states have return successors, (23), 18 states have call predecessors, (23), 19 states have call successors, (23) [2022-10-17 11:08:03,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 449 transitions. [2022-10-17 11:08:03,575 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 449 transitions. Word has length 44 [2022-10-17 11:08:03,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:08:03,575 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 449 transitions. [2022-10-17 11:08:03,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-17 11:08:03,575 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 449 transitions. [2022-10-17 11:08:03,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-17 11:08:03,577 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:08:03,577 INFO L195 NwaCegarLoop]: 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] [2022-10-17 11:08:03,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-17 11:08:03,577 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:08:03,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:08:03,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1891894546, now seen corresponding path program 1 times [2022-10-17 11:08:03,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:08:03,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41373836] [2022-10-17 11:08:03,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:08:03,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:08:03,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:03,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-17 11:08:03,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:03,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:08:03,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:08:03,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41373836] [2022-10-17 11:08:03,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41373836] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:08:03,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:08:03,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-17 11:08:03,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308574289] [2022-10-17 11:08:03,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:08:03,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-17 11:08:03,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:08:03,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 11:08:03,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-17 11:08:03,699 INFO L87 Difference]: Start difference. First operand 332 states and 449 transitions. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 11:08:03,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:08:03,939 INFO L93 Difference]: Finished difference Result 368 states and 493 transitions. [2022-10-17 11:08:03,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 11:08:03,939 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2022-10-17 11:08:03,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:08:03,942 INFO L225 Difference]: With dead ends: 368 [2022-10-17 11:08:03,942 INFO L226 Difference]: Without dead ends: 328 [2022-10-17 11:08:03,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-10-17 11:08:03,943 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 244 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-17 11:08:03,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 820 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-17 11:08:03,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2022-10-17 11:08:03,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 324. [2022-10-17 11:08:03,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 285 states have (on average 1.3649122807017544) internal successors, (389), 292 states have internal predecessors, (389), 23 states have call successors, (23), 13 states have call predecessors, (23), 15 states have return successors, (23), 18 states have call predecessors, (23), 19 states have call successors, (23) [2022-10-17 11:08:03,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 435 transitions. [2022-10-17 11:08:03,987 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 435 transitions. Word has length 42 [2022-10-17 11:08:03,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:08:03,988 INFO L495 AbstractCegarLoop]: Abstraction has 324 states and 435 transitions. [2022-10-17 11:08:03,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 11:08:03,988 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 435 transitions. [2022-10-17 11:08:03,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-17 11:08:03,989 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:08:03,989 INFO L195 NwaCegarLoop]: 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] [2022-10-17 11:08:03,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-17 11:08:03,990 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:08:03,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:08:03,990 INFO L85 PathProgramCache]: Analyzing trace with hash 2035173904, now seen corresponding path program 1 times [2022-10-17 11:08:03,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:08:03,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822715751] [2022-10-17 11:08:03,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:08:03,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:08:04,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:04,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-17 11:08:04,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:04,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:08:04,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:08:04,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822715751] [2022-10-17 11:08:04,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822715751] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:08:04,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:08:04,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-10-17 11:08:04,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228232870] [2022-10-17 11:08:04,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:08:04,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-17 11:08:04,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:08:04,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-17 11:08:04,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-10-17 11:08:04,102 INFO L87 Difference]: Start difference. First operand 324 states and 435 transitions. Second operand has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 11:08:04,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:08:04,347 INFO L93 Difference]: Finished difference Result 338 states and 449 transitions. [2022-10-17 11:08:04,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-17 11:08:04,348 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2022-10-17 11:08:04,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:08:04,350 INFO L225 Difference]: With dead ends: 338 [2022-10-17 11:08:04,350 INFO L226 Difference]: Without dead ends: 315 [2022-10-17 11:08:04,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-10-17 11:08:04,352 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 52 mSDsluCounter, 1234 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 1438 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-17 11:08:04,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 1438 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-17 11:08:04,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2022-10-17 11:08:04,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 315. [2022-10-17 11:08:04,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 278 states have (on average 1.3669064748201438) internal successors, (380), 284 states have internal predecessors, (380), 21 states have call successors, (21), 13 states have call predecessors, (21), 15 states have return successors, (21), 17 states have call predecessors, (21), 17 states have call successors, (21) [2022-10-17 11:08:04,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 422 transitions. [2022-10-17 11:08:04,396 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 422 transitions. Word has length 42 [2022-10-17 11:08:04,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:08:04,396 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 422 transitions. [2022-10-17 11:08:04,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 11:08:04,396 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 422 transitions. [2022-10-17 11:08:04,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-10-17 11:08:04,398 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:08:04,398 INFO L195 NwaCegarLoop]: 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] [2022-10-17 11:08:04,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-17 11:08:04,398 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:08:04,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:08:04,399 INFO L85 PathProgramCache]: Analyzing trace with hash 688199024, now seen corresponding path program 1 times [2022-10-17 11:08:04,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:08:04,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891767025] [2022-10-17 11:08:04,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:08:04,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:08:04,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:04,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-17 11:08:04,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:04,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 11:08:04,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:04,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:08:04,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:08:04,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891767025] [2022-10-17 11:08:04,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891767025] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:08:04,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:08:04,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 11:08:04,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867007710] [2022-10-17 11:08:04,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:08:04,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 11:08:04,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:08:04,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 11:08:04,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 11:08:04,465 INFO L87 Difference]: Start difference. First operand 315 states and 422 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-17 11:08:04,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:08:04,569 INFO L93 Difference]: Finished difference Result 375 states and 486 transitions. [2022-10-17 11:08:04,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 11:08:04,570 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 48 [2022-10-17 11:08:04,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:08:04,572 INFO L225 Difference]: With dead ends: 375 [2022-10-17 11:08:04,572 INFO L226 Difference]: Without dead ends: 313 [2022-10-17 11:08:04,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 11:08:04,573 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 26 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 11:08:04,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 541 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 11:08:04,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2022-10-17 11:08:04,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2022-10-17 11:08:04,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 276 states have (on average 1.3405797101449275) internal successors, (370), 282 states have internal predecessors, (370), 21 states have call successors, (21), 13 states have call predecessors, (21), 15 states have return successors, (21), 17 states have call predecessors, (21), 17 states have call successors, (21) [2022-10-17 11:08:04,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 412 transitions. [2022-10-17 11:08:04,615 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 412 transitions. Word has length 48 [2022-10-17 11:08:04,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:08:04,615 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 412 transitions. [2022-10-17 11:08:04,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-17 11:08:04,615 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 412 transitions. [2022-10-17 11:08:04,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-10-17 11:08:04,617 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:08:04,617 INFO L195 NwaCegarLoop]: 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] [2022-10-17 11:08:04,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-17 11:08:04,617 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:08:04,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:08:04,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1404526372, now seen corresponding path program 1 times [2022-10-17 11:08:04,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:08:04,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121764468] [2022-10-17 11:08:04,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:08:04,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:08:04,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:04,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 11:08:04,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:04,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 11:08:04,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:04,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:08:04,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:08:04,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121764468] [2022-10-17 11:08:04,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121764468] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:08:04,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:08:04,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-10-17 11:08:04,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343323423] [2022-10-17 11:08:04,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:08:04,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-17 11:08:04,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:08:04,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-17 11:08:04,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-10-17 11:08:04,818 INFO L87 Difference]: Start difference. First operand 313 states and 412 transitions. Second operand has 10 states, 10 states have (on average 4.4) internal successors, (44), 7 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-17 11:08:05,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:08:05,050 INFO L93 Difference]: Finished difference Result 325 states and 424 transitions. [2022-10-17 11:08:05,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-17 11:08:05,051 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.4) internal successors, (44), 7 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 49 [2022-10-17 11:08:05,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:08:05,053 INFO L225 Difference]: With dead ends: 325 [2022-10-17 11:08:05,053 INFO L226 Difference]: Without dead ends: 262 [2022-10-17 11:08:05,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-10-17 11:08:05,054 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 41 mSDsluCounter, 1371 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 1572 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-17 11:08:05,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 1572 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-17 11:08:05,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-10-17 11:08:05,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2022-10-17 11:08:05,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 229 states have (on average 1.314410480349345) internal successors, (301), 234 states have internal predecessors, (301), 18 states have call successors, (18), 12 states have call predecessors, (18), 14 states have return successors, (18), 15 states have call predecessors, (18), 14 states have call successors, (18) [2022-10-17 11:08:05,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 337 transitions. [2022-10-17 11:08:05,091 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 337 transitions. Word has length 49 [2022-10-17 11:08:05,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:08:05,091 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 337 transitions. [2022-10-17 11:08:05,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.4) internal successors, (44), 7 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-17 11:08:05,092 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 337 transitions. [2022-10-17 11:08:05,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-10-17 11:08:05,093 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:08:05,093 INFO L195 NwaCegarLoop]: 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] [2022-10-17 11:08:05,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-10-17 11:08:05,094 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:08:05,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:08:05,094 INFO L85 PathProgramCache]: Analyzing trace with hash 128898727, now seen corresponding path program 1 times [2022-10-17 11:08:05,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:08:05,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746371013] [2022-10-17 11:08:05,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:08:05,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:08:05,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:05,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 11:08:05,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:05,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:08:05,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:08:05,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746371013] [2022-10-17 11:08:05,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746371013] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:08:05,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:08:05,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-17 11:08:05,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134918799] [2022-10-17 11:08:05,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:08:05,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-17 11:08:05,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:08:05,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-17 11:08:05,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-17 11:08:05,246 INFO L87 Difference]: Start difference. First operand 262 states and 337 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 11:08:05,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:08:05,544 INFO L93 Difference]: Finished difference Result 319 states and 399 transitions. [2022-10-17 11:08:05,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-17 11:08:05,545 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2022-10-17 11:08:05,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:08:05,547 INFO L225 Difference]: With dead ends: 319 [2022-10-17 11:08:05,547 INFO L226 Difference]: Without dead ends: 304 [2022-10-17 11:08:05,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-10-17 11:08:05,549 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 325 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-17 11:08:05,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 716 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-17 11:08:05,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2022-10-17 11:08:05,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 274. [2022-10-17 11:08:05,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 239 states have (on average 1.301255230125523) internal successors, (311), 246 states have internal predecessors, (311), 18 states have call successors, (18), 12 states have call predecessors, (18), 16 states have return successors, (21), 15 states have call predecessors, (21), 14 states have call successors, (21) [2022-10-17 11:08:05,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 350 transitions. [2022-10-17 11:08:05,587 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 350 transitions. Word has length 43 [2022-10-17 11:08:05,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:08:05,588 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 350 transitions. [2022-10-17 11:08:05,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 11:08:05,588 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 350 transitions. [2022-10-17 11:08:05,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-10-17 11:08:05,590 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:08:05,590 INFO L195 NwaCegarLoop]: 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] [2022-10-17 11:08:05,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-10-17 11:08:05,590 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:08:05,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:08:05,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1523737831, now seen corresponding path program 1 times [2022-10-17 11:08:05,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:08:05,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330494072] [2022-10-17 11:08:05,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:08:05,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:08:05,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:05,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 11:08:05,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:05,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:08:05,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:08:05,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330494072] [2022-10-17 11:08:05,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330494072] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:08:05,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:08:05,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-10-17 11:08:05,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293271681] [2022-10-17 11:08:05,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:08:05,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-17 11:08:05,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:08:05,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-17 11:08:05,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-10-17 11:08:05,702 INFO L87 Difference]: Start difference. First operand 274 states and 350 transitions. Second operand has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 7 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 11:08:05,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:08:05,909 INFO L93 Difference]: Finished difference Result 288 states and 364 transitions. [2022-10-17 11:08:05,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-17 11:08:05,910 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 7 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2022-10-17 11:08:05,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:08:05,912 INFO L225 Difference]: With dead ends: 288 [2022-10-17 11:08:05,912 INFO L226 Difference]: Without dead ends: 224 [2022-10-17 11:08:05,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-10-17 11:08:05,913 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 52 mSDsluCounter, 917 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 1074 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 11:08:05,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 1074 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 11:08:05,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2022-10-17 11:08:05,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2022-10-17 11:08:05,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 192 states have (on average 1.171875) internal successors, (225), 197 states have internal predecessors, (225), 16 states have call successors, (16), 12 states have call predecessors, (16), 15 states have return successors, (17), 14 states have call predecessors, (17), 12 states have call successors, (17) [2022-10-17 11:08:05,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 258 transitions. [2022-10-17 11:08:05,966 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 258 transitions. Word has length 43 [2022-10-17 11:08:05,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:08:05,966 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 258 transitions. [2022-10-17 11:08:05,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 7 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 11:08:05,967 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 258 transitions. [2022-10-17 11:08:05,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-17 11:08:05,968 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:08:05,968 INFO L195 NwaCegarLoop]: 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] [2022-10-17 11:08:05,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-10-17 11:08:05,968 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:08:05,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:08:05,969 INFO L85 PathProgramCache]: Analyzing trace with hash -2019746375, now seen corresponding path program 1 times [2022-10-17 11:08:05,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:08:05,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44776116] [2022-10-17 11:08:05,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:08:05,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:08:05,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:08:05,985 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 11:08:05,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:08:06,030 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 11:08:06,030 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-17 11:08:06,031 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-10-17 11:08:06,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-10-17 11:08:06,037 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:08:06,041 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-17 11:08:06,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.10 11:08:06 BoogieIcfgContainer [2022-10-17 11:08:06,144 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-17 11:08:06,145 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 11:08:06,145 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 11:08:06,145 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 11:08:06,145 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:07:57" (3/4) ... [2022-10-17 11:08:06,147 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 11:08:06,276 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46316aef-baa9-4d14-96af-d94adf6cb005/bin/uautomizer-J5u9QxTXDZ/witness.graphml [2022-10-17 11:08:06,276 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 11:08:06,277 INFO L158 Benchmark]: Toolchain (without parser) took 10486.12ms. Allocated memory was 90.2MB in the beginning and 188.7MB in the end (delta: 98.6MB). Free memory was 53.3MB in the beginning and 134.6MB in the end (delta: -81.3MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. [2022-10-17 11:08:06,277 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 90.2MB. Free memory is still 70.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 11:08:06,277 INFO L158 Benchmark]: CACSL2BoogieTranslator took 645.03ms. Allocated memory was 90.2MB in the beginning and 113.2MB in the end (delta: 23.1MB). Free memory was 53.1MB in the beginning and 79.8MB in the end (delta: -26.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 11:08:06,278 INFO L158 Benchmark]: Boogie Procedure Inliner took 103.90ms. Allocated memory is still 113.2MB. Free memory was 79.8MB in the beginning and 76.4MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 11:08:06,278 INFO L158 Benchmark]: Boogie Preprocessor took 75.05ms. Allocated memory is still 113.2MB. Free memory was 76.0MB in the beginning and 73.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 11:08:06,279 INFO L158 Benchmark]: RCFGBuilder took 1114.45ms. Allocated memory is still 113.2MB. Free memory was 73.5MB in the beginning and 83.0MB in the end (delta: -9.5MB). Peak memory consumption was 44.8MB. Max. memory is 16.1GB. [2022-10-17 11:08:06,279 INFO L158 Benchmark]: TraceAbstraction took 8408.91ms. Allocated memory was 113.2MB in the beginning and 188.7MB in the end (delta: 75.5MB). Free memory was 82.5MB in the beginning and 143.0MB in the end (delta: -60.5MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2022-10-17 11:08:06,280 INFO L158 Benchmark]: Witness Printer took 131.51ms. Allocated memory is still 188.7MB. Free memory was 141.9MB in the beginning and 134.6MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 11:08:06,282 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 90.2MB. Free memory is still 70.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 645.03ms. Allocated memory was 90.2MB in the beginning and 113.2MB in the end (delta: 23.1MB). Free memory was 53.1MB in the beginning and 79.8MB in the end (delta: -26.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 103.90ms. Allocated memory is still 113.2MB. Free memory was 79.8MB in the beginning and 76.4MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.05ms. Allocated memory is still 113.2MB. Free memory was 76.0MB in the beginning and 73.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1114.45ms. Allocated memory is still 113.2MB. Free memory was 73.5MB in the beginning and 83.0MB in the end (delta: -9.5MB). Peak memory consumption was 44.8MB. Max. memory is 16.1GB. * TraceAbstraction took 8408.91ms. Allocated memory was 113.2MB in the beginning and 188.7MB in the end (delta: 75.5MB). Free memory was 82.5MB in the beginning and 143.0MB in the end (delta: -60.5MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. * Witness Printer took 131.51ms. Allocated memory is still 188.7MB. Free memory was 141.9MB in the beginning and 134.6MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. 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 - CounterExampleResult [Line: 1013]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L23] int KernelMode ; [L24] int Executive ; [L25] int DevicePowerState ; [L26] int s ; [L27] int UNLOADED ; [L28] int NP ; [L29] int DC ; [L30] int SKIP1 ; [L31] int SKIP2 ; [L32] int MPR1 ; [L33] int MPR3 ; [L34] int IPC ; [L35] int pended ; [L36] int compFptr ; [L37] int compRegistered ; [L38] int lowerDriverReturn ; [L39] int setEventCalled ; [L40] int customIrp ; [L41] int myStatus ; VAL [compFptr=0, compRegistered=0, customIrp=0, DC=0, DevicePowerState=0, Executive=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, UNLOADED=0] [L294] int status ; [L295] int irp = __VERIFIER_nondet_int() ; [L296] int pirp ; [L297] int pirp__IoStatus__Status ; [L298] int irp_choice = __VERIFIER_nondet_int() ; [L299] int devobj = __VERIFIER_nondet_int() ; [L300] int __cil_tmp8 ; [L302] KernelMode = 0 [L303] Executive = 0 [L304] DevicePowerState = 1 [L305] s = 0 [L306] UNLOADED = 0 [L307] NP = 0 [L308] DC = 0 [L309] SKIP1 = 0 [L310] SKIP2 = 0 [L311] MPR1 = 0 [L312] MPR3 = 0 [L313] IPC = 0 [L314] pended = 0 [L315] compFptr = 0 [L316] compRegistered = 0 [L317] lowerDriverReturn = 0 [L318] setEventCalled = 0 [L319] customIrp = 0 [L320] myStatus = 0 [L324] status = 0 [L325] pirp = irp [L326] CALL _BLAST_init() [L61] UNLOADED = 0 [L62] NP = 1 [L63] DC = 2 [L64] SKIP1 = 3 [L65] SKIP2 = 4 [L66] MPR1 = 5 [L67] MPR3 = 6 [L68] IPC = 7 [L69] s = UNLOADED [L70] pended = 0 [L71] compFptr = 0 [L72] compRegistered = 0 [L73] lowerDriverReturn = 0 [L74] setEventCalled = 0 [L75] customIrp = 0 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L326] RET _BLAST_init() [L328] COND TRUE status >= 0 [L329] s = NP [L330] customIrp = 0 [L331] setEventCalled = customIrp [L332] lowerDriverReturn = setEventCalled [L333] compRegistered = lowerDriverReturn [L334] pended = compRegistered [L335] pirp__IoStatus__Status = 0 [L336] myStatus = 0 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=-1, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L337] COND TRUE irp_choice == 0 [L338] pirp__IoStatus__Status = -1073741637 [L339] myStatus = -1073741637 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=-1, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L342] CALL stub_driver_init() [L47] s = NP [L48] pended = 0 [L49] compFptr = 0 [L50] compRegistered = 0 [L51] lowerDriverReturn = 0 [L52] setEventCalled = 0 [L53] customIrp = 0 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L342] RET stub_driver_init() [L345] COND FALSE !(status < 0) [L349] int tmp_ndt_1; [L350] tmp_ndt_1 = __VERIFIER_nondet_int() [L351] COND FALSE !(tmp_ndt_1 == 0) [L354] int tmp_ndt_2; [L355] tmp_ndt_2 = __VERIFIER_nondet_int() [L356] COND FALSE !(tmp_ndt_2 == 1) [L359] int tmp_ndt_3; [L360] tmp_ndt_3 = __VERIFIER_nondet_int() [L361] COND TRUE tmp_ndt_3 == 3 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=-1, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [L388] CALL, EXPR KbFilter_PnP(devobj, pirp) [L80] int devExt ; [L81] int irpStack ; [L82] int status ; [L83] int event = __VERIFIER_nondet_int() ; [L84] int DeviceObject__DeviceExtension = __VERIFIER_nondet_int() ; [L85] int Irp__Tail__Overlay__CurrentStackLocation = __VERIFIER_nondet_int() ; [L86] int irpStack__MinorFunction = __VERIFIER_nondet_int() ; [L87] int devExt__TopOfStack = __VERIFIER_nondet_int() ; [L88] int devExt__Started ; [L89] int devExt__Removed ; [L90] int devExt__SurpriseRemoved ; [L91] int Irp__IoStatus__Status ; [L92] int Irp__IoStatus__Information ; [L93] int Irp__CurrentLocation = __VERIFIER_nondet_int() ; [L94] int irpSp ; [L95] int nextIrpSp ; [L96] int nextIrpSp__Control ; [L97] int irpSp___0 ; [L98] int irpSp__Context ; [L99] int irpSp__Control ; [L100] long __cil_tmp23 ; [L103] status = 0 [L104] devExt = DeviceObject__DeviceExtension [L105] irpStack = Irp__Tail__Overlay__CurrentStackLocation VAL [\old(DeviceObject)=-1, \old(Irp)=-2, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=0, devExt__TopOfStack=0, DeviceObject=-1, DeviceObject__DeviceExtension=0, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L106] COND FALSE !(irpStack__MinorFunction == 0) VAL [\old(DeviceObject)=-1, \old(Irp)=-2, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=0, devExt__TopOfStack=0, DeviceObject=-1, DeviceObject__DeviceExtension=0, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L109] COND FALSE !(irpStack__MinorFunction == 23) VAL [\old(DeviceObject)=-1, \old(Irp)=-2, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=0, devExt__TopOfStack=0, DeviceObject=-1, DeviceObject__DeviceExtension=0, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L112] COND TRUE irpStack__MinorFunction == 2 VAL [\old(DeviceObject)=-1, \old(Irp)=-2, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=0, devExt__TopOfStack=0, DeviceObject=-1, DeviceObject__DeviceExtension=0, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L236] devExt__Removed = 1 VAL [\old(DeviceObject)=-1, \old(Irp)=-2, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=0, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=-1, DeviceObject__DeviceExtension=0, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L237] COND TRUE s == NP [L238] s = SKIP1 VAL [\old(DeviceObject)=-1, \old(Irp)=-2, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=0, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=-1, DeviceObject__DeviceExtension=0, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L245] Irp__CurrentLocation ++ [L246] Irp__Tail__Overlay__CurrentStackLocation ++ VAL [\old(DeviceObject)=-1, \old(Irp)=-2, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=0, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=-1, DeviceObject__DeviceExtension=0, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L247] CALL IofCallDriver(devExt__TopOfStack, Irp) VAL [\old(DeviceObject)=0, \old(Irp)=-2, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L483] int returnVal2 ; [L484] int compRetStatus ; [L485] int lcontext = __VERIFIER_nondet_int() ; [L486] long long __cil_tmp7 ; VAL [\old(DeviceObject)=0, \old(Irp)=-2, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L489] COND FALSE !(\read(compRegistered)) VAL [\old(DeviceObject)=0, \old(Irp)=-2, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L502] int tmp_ndt_6; [L503] tmp_ndt_6 = __VERIFIER_nondet_int() [L504] COND FALSE !(tmp_ndt_6 == 0) [L507] int tmp_ndt_7; [L508] tmp_ndt_7 = __VERIFIER_nondet_int() [L509] COND TRUE tmp_ndt_7 == 1 VAL [\old(DeviceObject)=0, \old(Irp)=-2, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=-4, tmp_ndt_7=1, UNLOADED=0] [L518] returnVal2 = -1073741823 VAL [\old(DeviceObject)=0, \old(Irp)=-2, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, returnVal2=-1073741823, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=-4, tmp_ndt_7=1, UNLOADED=0] [L528] COND FALSE !(s == NP) VAL [\old(DeviceObject)=0, \old(Irp)=-2, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, returnVal2=-1073741823, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=-4, tmp_ndt_7=1, UNLOADED=0] [L532] COND FALSE !(s == MPR1) VAL [\old(DeviceObject)=0, \old(Irp)=-2, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, returnVal2=-1073741823, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=-4, tmp_ndt_7=1, UNLOADED=0] [L541] COND TRUE s == SKIP1 [L542] s = SKIP2 [L543] lowerDriverReturn = returnVal2 VAL [\old(DeviceObject)=0, \old(Irp)=-2, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, returnVal2=-1073741823, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=-4, tmp_ndt_7=1, UNLOADED=0] [L551] return (returnVal2); VAL [\old(DeviceObject)=0, \old(Irp)=-2, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, \result=-1073741823, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, returnVal2=-1073741823, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=-4, tmp_ndt_7=1, UNLOADED=0] [L247] RET IofCallDriver(devExt__TopOfStack, Irp) VAL [\old(DeviceObject)=-1, \old(Irp)=-2, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=0, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=-1, DeviceObject__DeviceExtension=0, DevicePowerState=1, event=0, Executive=0, IofCallDriver(devExt__TopOfStack, Irp)=-1073741823, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L248] status = 0 VAL [\old(DeviceObject)=-1, \old(Irp)=-2, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=0, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=-1, DeviceObject__DeviceExtension=0, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L290] return (status); VAL [\old(DeviceObject)=-1, \old(Irp)=-2, \result=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=0, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=-1, DeviceObject__DeviceExtension=0, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L388] RET, EXPR KbFilter_PnP(devobj, pirp) [L388] status = KbFilter_PnP(devobj, pirp) [L412] COND FALSE !(pended == 1) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=-1, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [L420] COND FALSE !(pended == 1) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=-1, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [L428] COND TRUE s != UNLOADED VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=-1, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [L429] COND TRUE status != -1 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=-1, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [L430] COND FALSE !(s != SKIP2) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=-1, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [L440] COND FALSE !(pended == 1) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=-1, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [L447] COND FALSE !(s == DC) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=-1, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [L452] COND TRUE status != lowerDriverReturn VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=-1, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [L453] CALL errorFn() VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L1013] reach_error() VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 209 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.2s, OverallIterations: 23, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3736 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3707 mSDsluCounter, 17586 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12418 mSDsCounter, 573 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2759 IncrementalHoareTripleChecker+Invalid, 3332 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 573 mSolverCounterUnsat, 5168 mSDtfsCounter, 2759 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 219 GetRequests, 88 SyntacticMatches, 1 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=344occurred in iteration=15, InterpolantAutomatonStates: 149, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 22 MinimizatonAttempts, 213 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 850 NumberOfCodeBlocks, 850 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 784 ConstructedInterpolants, 0 QuantifiedInterpolants, 1930 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-10-17 11:08:06,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46316aef-baa9-4d14-96af-d94adf6cb005/bin/uautomizer-J5u9QxTXDZ/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE