./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label23.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3749162-c8c6-48d3-a92d-d40c5c0fc51f/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3749162-c8c6-48d3-a92d-d40c5c0fc51f/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3749162-c8c6-48d3-a92d-d40c5c0fc51f/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3749162-c8c6-48d3-a92d-d40c5c0fc51f/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label23.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3749162-c8c6-48d3-a92d-d40c5c0fc51f/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3749162-c8c6-48d3-a92d-d40c5c0fc51f/bin/uautomizer-Dbtcem3rbc --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 9f1cd2841a16dfe2f8fe839faac013546a2b72431aadffbb7fe449f6c6dcaf65 --- 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-5e519f3 [2022-11-02 20:21:21,355 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:21:21,360 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:21:21,406 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:21:21,407 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:21:21,410 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:21:21,412 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:21:21,416 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:21:21,418 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:21:21,423 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:21:21,424 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:21:21,426 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:21:21,427 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:21:21,429 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:21:21,431 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:21:21,433 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:21:21,434 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:21:21,435 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:21:21,437 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:21:21,443 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:21:21,444 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:21:21,445 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:21:21,448 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:21:21,449 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:21:21,454 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:21:21,454 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:21:21,455 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:21:21,456 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:21:21,456 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:21:21,457 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:21:21,457 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:21:21,458 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:21:21,459 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:21:21,459 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:21:21,460 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:21:21,460 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:21:21,461 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:21:21,461 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:21:21,461 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:21:21,462 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:21:21,462 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:21:21,463 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3749162-c8c6-48d3-a92d-d40c5c0fc51f/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-02 20:21:21,502 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:21:21,502 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:21:21,503 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:21:21,503 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:21:21,504 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:21:21,504 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:21:21,505 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:21:21,505 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:21:21,505 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:21:21,506 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:21:21,507 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:21:21,507 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:21:21,507 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:21:21,507 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:21:21,508 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:21:21,508 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:21:21,508 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:21:21,508 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:21:21,508 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:21:21,509 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:21:21,509 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:21:21,509 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:21:21,509 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:21:21,509 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:21:21,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:21:21,510 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:21:21,511 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:21:21,512 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:21:21,512 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:21:21,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:21:21,512 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:21:21,513 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:21:21,513 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:21:21,513 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_e3749162-c8c6-48d3-a92d-d40c5c0fc51f/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3749162-c8c6-48d3-a92d-d40c5c0fc51f/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f1cd2841a16dfe2f8fe839faac013546a2b72431aadffbb7fe449f6c6dcaf65 [2022-11-02 20:21:21,760 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:21:21,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:21:21,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:21:21,796 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:21:21,796 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:21:21,798 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3749162-c8c6-48d3-a92d-d40c5c0fc51f/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/eca-rers2012/Problem01_label23.c [2022-11-02 20:21:21,879 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3749162-c8c6-48d3-a92d-d40c5c0fc51f/bin/uautomizer-Dbtcem3rbc/data/e4dab7ff8/a5ba8f5c732a4bf7a4082a3e5d8490a1/FLAG4721bfdda [2022-11-02 20:21:22,474 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:21:22,474 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3749162-c8c6-48d3-a92d-d40c5c0fc51f/sv-benchmarks/c/eca-rers2012/Problem01_label23.c [2022-11-02 20:21:22,498 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3749162-c8c6-48d3-a92d-d40c5c0fc51f/bin/uautomizer-Dbtcem3rbc/data/e4dab7ff8/a5ba8f5c732a4bf7a4082a3e5d8490a1/FLAG4721bfdda [2022-11-02 20:21:22,727 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3749162-c8c6-48d3-a92d-d40c5c0fc51f/bin/uautomizer-Dbtcem3rbc/data/e4dab7ff8/a5ba8f5c732a4bf7a4082a3e5d8490a1 [2022-11-02 20:21:22,729 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:21:22,731 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:21:22,735 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:21:22,736 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:21:22,739 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:21:22,740 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:21:22" (1/1) ... [2022-11-02 20:21:22,741 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d41abbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:22, skipping insertion in model container [2022-11-02 20:21:22,741 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:21:22" (1/1) ... [2022-11-02 20:21:22,749 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:21:22,812 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:21:23,260 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_e3749162-c8c6-48d3-a92d-d40c5c0fc51f/sv-benchmarks/c/eca-rers2012/Problem01_label23.c[17363,17376] [2022-11-02 20:21:23,304 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:21:23,313 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:21:23,422 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_e3749162-c8c6-48d3-a92d-d40c5c0fc51f/sv-benchmarks/c/eca-rers2012/Problem01_label23.c[17363,17376] [2022-11-02 20:21:23,435 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:21:23,449 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:21:23,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:23 WrapperNode [2022-11-02 20:21:23,450 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:21:23,451 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:21:23,452 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:21:23,452 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:21:23,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:23" (1/1) ... [2022-11-02 20:21:23,476 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:23" (1/1) ... [2022-11-02 20:21:23,525 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 657 [2022-11-02 20:21:23,526 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:21:23,526 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:21:23,527 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:21:23,527 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:21:23,537 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:23" (1/1) ... [2022-11-02 20:21:23,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:23" (1/1) ... [2022-11-02 20:21:23,543 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:23" (1/1) ... [2022-11-02 20:21:23,543 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:23" (1/1) ... [2022-11-02 20:21:23,561 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:23" (1/1) ... [2022-11-02 20:21:23,569 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:23" (1/1) ... [2022-11-02 20:21:23,586 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:23" (1/1) ... [2022-11-02 20:21:23,590 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:23" (1/1) ... [2022-11-02 20:21:23,597 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:21:23,598 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:21:23,598 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:21:23,598 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:21:23,599 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:23" (1/1) ... [2022-11-02 20:21:23,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:21:23,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3749162-c8c6-48d3-a92d-d40c5c0fc51f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:21:23,635 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3749162-c8c6-48d3-a92d-d40c5c0fc51f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:21:23,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3749162-c8c6-48d3-a92d-d40c5c0fc51f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:21:23,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:21:23,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:21:23,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:21:23,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:21:23,809 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:21:23,811 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:21:24,987 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:21:25,002 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:21:25,003 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 20:21:25,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:21:25 BoogieIcfgContainer [2022-11-02 20:21:25,006 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:21:25,009 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:21:25,009 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:21:25,013 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:21:25,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:21:22" (1/3) ... [2022-11-02 20:21:25,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2de63086 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:21:25, skipping insertion in model container [2022-11-02 20:21:25,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:23" (2/3) ... [2022-11-02 20:21:25,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2de63086 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:21:25, skipping insertion in model container [2022-11-02 20:21:25,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:21:25" (3/3) ... [2022-11-02 20:21:25,017 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label23.c [2022-11-02 20:21:25,039 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:21:25,039 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:21:25,115 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:21:25,129 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;@4b0a9c0b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:21:25,129 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:21:25,134 INFO L276 IsEmpty]: Start isEmpty. Operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:25,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-02 20:21:25,145 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:21:25,146 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:21:25,146 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:21:25,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:21:25,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1911993682, now seen corresponding path program 1 times [2022-11-02 20:21:25,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:21:25,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944415478] [2022-11-02 20:21:25,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:21:25,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:21:25,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:21:25,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:21:25,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:21:25,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944415478] [2022-11-02 20:21:25,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944415478] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:21:25,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:21:25,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:21:25,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390400009] [2022-11-02 20:21:25,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:21:25,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:21:25,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:21:25,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:21:25,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:21:25,896 INFO L87 Difference]: Start difference. First operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:26,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:21:26,692 INFO L93 Difference]: Finished difference Result 528 states and 915 transitions. [2022-11-02 20:21:26,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:21:26,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-11-02 20:21:26,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:21:26,706 INFO L225 Difference]: With dead ends: 528 [2022-11-02 20:21:26,706 INFO L226 Difference]: Without dead ends: 266 [2022-11-02 20:21:26,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:21:26,713 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 93 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-02 20:21:26,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 51 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-02 20:21:26,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-11-02 20:21:26,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2022-11-02 20:21:26,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 265 states have (on average 1.4566037735849056) internal successors, (386), 265 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:26,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 386 transitions. [2022-11-02 20:21:26,786 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 386 transitions. Word has length 95 [2022-11-02 20:21:26,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:21:26,787 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 386 transitions. [2022-11-02 20:21:26,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:26,789 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 386 transitions. [2022-11-02 20:21:26,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-02 20:21:26,792 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:21:26,792 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:21:26,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:21:26,793 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:21:26,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:21:26,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1657256635, now seen corresponding path program 1 times [2022-11-02 20:21:26,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:21:26,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644899820] [2022-11-02 20:21:26,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:21:26,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:21:26,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:21:26,914 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:21:26,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:21:26,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644899820] [2022-11-02 20:21:26,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644899820] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:21:26,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:21:26,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:21:26,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132804607] [2022-11-02 20:21:26,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:21:26,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:21:26,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:21:26,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:21:26,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:21:26,918 INFO L87 Difference]: Start difference. First operand 266 states and 386 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:27,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:21:27,378 INFO L93 Difference]: Finished difference Result 792 states and 1153 transitions. [2022-11-02 20:21:27,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:21:27,379 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-11-02 20:21:27,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:21:27,383 INFO L225 Difference]: With dead ends: 792 [2022-11-02 20:21:27,383 INFO L226 Difference]: Without dead ends: 528 [2022-11-02 20:21:27,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:21:27,394 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 142 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:21:27,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 36 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 20:21:27,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2022-11-02 20:21:27,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2022-11-02 20:21:27,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 527 states have (on average 1.3795066413662238) internal successors, (727), 527 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:27,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 727 transitions. [2022-11-02 20:21:27,439 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 727 transitions. Word has length 101 [2022-11-02 20:21:27,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:21:27,442 INFO L495 AbstractCegarLoop]: Abstraction has 528 states and 727 transitions. [2022-11-02 20:21:27,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:27,444 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 727 transitions. [2022-11-02 20:21:27,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-02 20:21:27,451 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:21:27,451 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:21:27,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:21:27,453 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:21:27,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:21:27,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1528488005, now seen corresponding path program 1 times [2022-11-02 20:21:27,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:21:27,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269368733] [2022-11-02 20:21:27,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:21:27,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:21:27,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:21:27,673 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:21:27,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:21:27,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269368733] [2022-11-02 20:21:27,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269368733] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:21:27,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:21:27,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:21:27,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029236209] [2022-11-02 20:21:27,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:21:27,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:21:27,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:21:27,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:21:27,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:21:27,676 INFO L87 Difference]: Start difference. First operand 528 states and 727 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:28,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:21:28,176 INFO L93 Difference]: Finished difference Result 1447 states and 1991 transitions. [2022-11-02 20:21:28,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:21:28,177 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2022-11-02 20:21:28,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:21:28,181 INFO L225 Difference]: With dead ends: 1447 [2022-11-02 20:21:28,181 INFO L226 Difference]: Without dead ends: 921 [2022-11-02 20:21:28,182 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 [2022-11-02 20:21:28,183 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 39 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 20:21:28,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 211 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-02 20:21:28,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2022-11-02 20:21:28,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 659. [2022-11-02 20:21:28,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 658 states have (on average 1.3404255319148937) internal successors, (882), 658 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:28,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 882 transitions. [2022-11-02 20:21:28,201 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 882 transitions. Word has length 102 [2022-11-02 20:21:28,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:21:28,201 INFO L495 AbstractCegarLoop]: Abstraction has 659 states and 882 transitions. [2022-11-02 20:21:28,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:28,202 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 882 transitions. [2022-11-02 20:21:28,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-02 20:21:28,204 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:21:28,204 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:21:28,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:21:28,204 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:21:28,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:21:28,205 INFO L85 PathProgramCache]: Analyzing trace with hash 882295146, now seen corresponding path program 1 times [2022-11-02 20:21:28,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:21:28,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257645956] [2022-11-02 20:21:28,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:21:28,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:21:28,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:21:28,394 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:21:28,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:21:28,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257645956] [2022-11-02 20:21:28,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257645956] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:21:28,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:21:28,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:21:28,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152902737] [2022-11-02 20:21:28,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:21:28,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:21:28,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:21:28,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:21:28,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:21:28,397 INFO L87 Difference]: Start difference. First operand 659 states and 882 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:28,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:21:28,907 INFO L93 Difference]: Finished difference Result 1971 states and 2641 transitions. [2022-11-02 20:21:28,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:21:28,908 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2022-11-02 20:21:28,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:21:28,912 INFO L225 Difference]: With dead ends: 1971 [2022-11-02 20:21:28,912 INFO L226 Difference]: Without dead ends: 1183 [2022-11-02 20:21:28,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:21:28,919 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 135 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 20:21:28,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 54 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-02 20:21:28,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2022-11-02 20:21:28,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1183. [2022-11-02 20:21:28,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 1182 states have (on average 1.1742808798646363) internal successors, (1388), 1182 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:28,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1388 transitions. [2022-11-02 20:21:28,951 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1388 transitions. Word has length 108 [2022-11-02 20:21:28,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:21:28,952 INFO L495 AbstractCegarLoop]: Abstraction has 1183 states and 1388 transitions. [2022-11-02 20:21:28,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:28,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1388 transitions. [2022-11-02 20:21:28,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-02 20:21:28,955 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:21:28,955 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:21:28,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:21:28,956 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:21:28,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:21:28,958 INFO L85 PathProgramCache]: Analyzing trace with hash -203138944, now seen corresponding path program 1 times [2022-11-02 20:21:28,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:21:28,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214005632] [2022-11-02 20:21:28,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:21:28,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:21:28,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:21:29,117 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-02 20:21:29,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:21:29,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214005632] [2022-11-02 20:21:29,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214005632] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:21:29,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:21:29,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:21:29,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845403185] [2022-11-02 20:21:29,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:21:29,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:21:29,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:21:29,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:21:29,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:21:29,120 INFO L87 Difference]: Start difference. First operand 1183 states and 1388 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:29,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:21:29,606 INFO L93 Difference]: Finished difference Result 2757 states and 3262 transitions. [2022-11-02 20:21:29,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:21:29,613 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-11-02 20:21:29,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:21:29,618 INFO L225 Difference]: With dead ends: 2757 [2022-11-02 20:21:29,619 INFO L226 Difference]: Without dead ends: 1707 [2022-11-02 20:21:29,620 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 [2022-11-02 20:21:29,621 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 130 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:21:29,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 39 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 20:21:29,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2022-11-02 20:21:29,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1445. [2022-11-02 20:21:29,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1444 states have (on average 1.175207756232687) internal successors, (1697), 1444 states have internal predecessors, (1697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:29,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1697 transitions. [2022-11-02 20:21:29,657 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1697 transitions. Word has length 121 [2022-11-02 20:21:29,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:21:29,658 INFO L495 AbstractCegarLoop]: Abstraction has 1445 states and 1697 transitions. [2022-11-02 20:21:29,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:29,662 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1697 transitions. [2022-11-02 20:21:29,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-02 20:21:29,668 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:21:29,668 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:21:29,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:21:29,669 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:21:29,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:21:29,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1604160105, now seen corresponding path program 1 times [2022-11-02 20:21:29,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:21:29,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916836363] [2022-11-02 20:21:29,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:21:29,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:21:29,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:21:29,939 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-02 20:21:29,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:21:29,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916836363] [2022-11-02 20:21:29,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916836363] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:21:29,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:21:29,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:21:29,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50279482] [2022-11-02 20:21:29,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:21:29,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:21:29,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:21:29,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:21:29,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:21:29,942 INFO L87 Difference]: Start difference. First operand 1445 states and 1697 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:30,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:21:30,348 INFO L93 Difference]: Finished difference Result 2888 states and 3407 transitions. [2022-11-02 20:21:30,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:21:30,351 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2022-11-02 20:21:30,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:21:30,356 INFO L225 Difference]: With dead ends: 2888 [2022-11-02 20:21:30,357 INFO L226 Difference]: Without dead ends: 1576 [2022-11-02 20:21:30,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:21:30,359 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 119 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:21:30,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 54 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 20:21:30,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2022-11-02 20:21:30,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1576. [2022-11-02 20:21:30,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 1.1657142857142857) internal successors, (1836), 1575 states have internal predecessors, (1836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:30,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 1836 transitions. [2022-11-02 20:21:30,395 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 1836 transitions. Word has length 123 [2022-11-02 20:21:30,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:21:30,395 INFO L495 AbstractCegarLoop]: Abstraction has 1576 states and 1836 transitions. [2022-11-02 20:21:30,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:30,395 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 1836 transitions. [2022-11-02 20:21:30,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-02 20:21:30,398 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:21:30,399 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:21:30,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:21:30,399 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:21:30,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:21:30,400 INFO L85 PathProgramCache]: Analyzing trace with hash -823807695, now seen corresponding path program 1 times [2022-11-02 20:21:30,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:21:30,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074596036] [2022-11-02 20:21:30,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:21:30,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:21:30,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:21:30,639 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-02 20:21:30,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:21:30,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074596036] [2022-11-02 20:21:30,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074596036] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:21:30,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:21:30,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:21:30,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864253257] [2022-11-02 20:21:30,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:21:30,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:21:30,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:21:30,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:21:30,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:21:30,641 INFO L87 Difference]: Start difference. First operand 1576 states and 1836 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:31,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:21:31,256 INFO L93 Difference]: Finished difference Result 3281 states and 3836 transitions. [2022-11-02 20:21:31,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:21:31,256 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2022-11-02 20:21:31,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:21:31,262 INFO L225 Difference]: With dead ends: 3281 [2022-11-02 20:21:31,262 INFO L226 Difference]: Without dead ends: 1838 [2022-11-02 20:21:31,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:21:31,265 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 383 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-02 20:21:31,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 54 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-02 20:21:31,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states. [2022-11-02 20:21:31,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1707. [2022-11-02 20:21:31,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1707 states, 1706 states have (on average 1.1547479484173506) internal successors, (1970), 1706 states have internal predecessors, (1970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:31,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 1970 transitions. [2022-11-02 20:21:31,299 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 1970 transitions. Word has length 127 [2022-11-02 20:21:31,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:21:31,300 INFO L495 AbstractCegarLoop]: Abstraction has 1707 states and 1970 transitions. [2022-11-02 20:21:31,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:31,300 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 1970 transitions. [2022-11-02 20:21:31,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-11-02 20:21:31,303 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:21:31,303 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:21:31,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:21:31,304 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:21:31,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:21:31,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1539141362, now seen corresponding path program 1 times [2022-11-02 20:21:31,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:21:31,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677086362] [2022-11-02 20:21:31,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:21:31,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:21:31,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:21:31,647 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 49 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:21:31,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:21:31,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677086362] [2022-11-02 20:21:31,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677086362] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:21:31,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1541132393] [2022-11-02 20:21:31,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:21:31,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:21:31,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3749162-c8c6-48d3-a92d-d40c5c0fc51f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:21:31,651 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3749162-c8c6-48d3-a92d-d40c5c0fc51f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:21:31,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3749162-c8c6-48d3-a92d-d40c5c0fc51f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 20:21:31,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:21:31,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:21:31,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:21:32,083 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-02 20:21:32,083 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:21:32,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1541132393] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:21:32,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 20:21:32,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2022-11-02 20:21:32,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007381077] [2022-11-02 20:21:32,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:21:32,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:21:32,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:21:32,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:21:32,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:21:32,086 INFO L87 Difference]: Start difference. First operand 1707 states and 1970 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:32,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:21:32,522 INFO L93 Difference]: Finished difference Result 3805 states and 4470 transitions. [2022-11-02 20:21:32,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:21:32,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 145 [2022-11-02 20:21:32,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:21:32,533 INFO L225 Difference]: With dead ends: 3805 [2022-11-02 20:21:32,533 INFO L226 Difference]: Without dead ends: 2100 [2022-11-02 20:21:32,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:21:32,536 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 39 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:21:32,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 189 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 20:21:32,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2022-11-02 20:21:32,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 1576. [2022-11-02 20:21:32,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 1.16) internal successors, (1827), 1575 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:32,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 1827 transitions. [2022-11-02 20:21:32,582 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 1827 transitions. Word has length 145 [2022-11-02 20:21:32,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:21:32,583 INFO L495 AbstractCegarLoop]: Abstraction has 1576 states and 1827 transitions. [2022-11-02 20:21:32,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:32,583 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 1827 transitions. [2022-11-02 20:21:32,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-02 20:21:32,586 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:21:32,587 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:21:32,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3749162-c8c6-48d3-a92d-d40c5c0fc51f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:21:32,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3749162-c8c6-48d3-a92d-d40c5c0fc51f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:21:32,803 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:21:32,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:21:32,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1337842042, now seen corresponding path program 1 times [2022-11-02 20:21:32,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:21:32,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914024649] [2022-11-02 20:21:32,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:21:32,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:21:32,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:21:32,961 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-02 20:21:32,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:21:32,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914024649] [2022-11-02 20:21:32,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914024649] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:21:32,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:21:32,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:21:32,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518533060] [2022-11-02 20:21:32,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:21:32,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:21:32,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:21:32,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:21:32,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:21:32,964 INFO L87 Difference]: Start difference. First operand 1576 states and 1827 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:33,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:21:33,371 INFO L93 Difference]: Finished difference Result 3019 states and 3518 transitions. [2022-11-02 20:21:33,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:21:33,372 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-11-02 20:21:33,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:21:33,377 INFO L225 Difference]: With dead ends: 3019 [2022-11-02 20:21:33,377 INFO L226 Difference]: Without dead ends: 1576 [2022-11-02 20:21:33,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:21:33,382 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 117 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:21:33,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 27 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 20:21:33,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2022-11-02 20:21:33,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1576. [2022-11-02 20:21:33,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 1.1092063492063493) internal successors, (1747), 1575 states have internal predecessors, (1747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:33,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 1747 transitions. [2022-11-02 20:21:33,429 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 1747 transitions. Word has length 153 [2022-11-02 20:21:33,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:21:33,429 INFO L495 AbstractCegarLoop]: Abstraction has 1576 states and 1747 transitions. [2022-11-02 20:21:33,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:33,430 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 1747 transitions. [2022-11-02 20:21:33,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-11-02 20:21:33,434 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:21:33,434 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:21:33,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 20:21:33,435 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:21:33,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:21:33,435 INFO L85 PathProgramCache]: Analyzing trace with hash -628114179, now seen corresponding path program 1 times [2022-11-02 20:21:33,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:21:33,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122164094] [2022-11-02 20:21:33,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:21:33,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:21:33,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:21:33,673 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:21:33,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:21:33,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122164094] [2022-11-02 20:21:33,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122164094] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:21:33,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1091073226] [2022-11-02 20:21:33,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:21:33,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:21:33,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3749162-c8c6-48d3-a92d-d40c5c0fc51f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:21:33,675 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3749162-c8c6-48d3-a92d-d40c5c0fc51f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:21:33,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3749162-c8c6-48d3-a92d-d40c5c0fc51f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-02 20:21:33,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:21:33,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:21:33,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:21:34,053 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-11-02 20:21:34,053 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:21:34,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1091073226] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:21:34,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 20:21:34,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2022-11-02 20:21:34,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964354904] [2022-11-02 20:21:34,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:21:34,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:21:34,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:21:34,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:21:34,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:21:34,056 INFO L87 Difference]: Start difference. First operand 1576 states and 1747 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:34,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:21:34,480 INFO L93 Difference]: Finished difference Result 4198 states and 4681 transitions. [2022-11-02 20:21:34,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:21:34,481 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 154 [2022-11-02 20:21:34,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:21:34,489 INFO L225 Difference]: With dead ends: 4198 [2022-11-02 20:21:34,490 INFO L226 Difference]: Without dead ends: 2755 [2022-11-02 20:21:34,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:21:34,492 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 60 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:21:34,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 29 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 20:21:34,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2755 states. [2022-11-02 20:21:34,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2755 to 2755. [2022-11-02 20:21:34,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2755 states, 2754 states have (on average 1.107843137254902) internal successors, (3051), 2754 states have internal predecessors, (3051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:34,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2755 states to 2755 states and 3051 transitions. [2022-11-02 20:21:34,555 INFO L78 Accepts]: Start accepts. Automaton has 2755 states and 3051 transitions. Word has length 154 [2022-11-02 20:21:34,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:21:34,555 INFO L495 AbstractCegarLoop]: Abstraction has 2755 states and 3051 transitions. [2022-11-02 20:21:34,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:34,556 INFO L276 IsEmpty]: Start isEmpty. Operand 2755 states and 3051 transitions. [2022-11-02 20:21:34,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-11-02 20:21:34,560 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:21:34,560 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:21:34,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3749162-c8c6-48d3-a92d-d40c5c0fc51f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:21:34,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3749162-c8c6-48d3-a92d-d40c5c0fc51f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:21:34,775 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:21:34,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:21:34,775 INFO L85 PathProgramCache]: Analyzing trace with hash 701300223, now seen corresponding path program 1 times [2022-11-02 20:21:34,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:21:34,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485529781] [2022-11-02 20:21:34,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:21:34,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:21:34,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:21:35,071 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 78 proven. 10 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-02 20:21:35,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:21:35,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485529781] [2022-11-02 20:21:35,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485529781] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:21:35,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99464735] [2022-11-02 20:21:35,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:21:35,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:21:35,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3749162-c8c6-48d3-a92d-d40c5c0fc51f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:21:35,073 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3749162-c8c6-48d3-a92d-d40c5c0fc51f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:21:35,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3749162-c8c6-48d3-a92d-d40c5c0fc51f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-02 20:21:35,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:21:35,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:21:35,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:21:35,345 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-11-02 20:21:35,346 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:21:35,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [99464735] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:21:35,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 20:21:35,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2022-11-02 20:21:35,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223638544] [2022-11-02 20:21:35,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:21:35,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:21:35,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:21:35,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:21:35,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:21:35,349 INFO L87 Difference]: Start difference. First operand 2755 states and 3051 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:35,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:21:35,773 INFO L93 Difference]: Finished difference Result 5508 states and 6118 transitions. [2022-11-02 20:21:35,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:21:35,774 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 164 [2022-11-02 20:21:35,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:21:35,783 INFO L225 Difference]: With dead ends: 5508 [2022-11-02 20:21:35,783 INFO L226 Difference]: Without dead ends: 2886 [2022-11-02 20:21:35,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:21:35,787 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 43 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:21:35,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 163 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 20:21:35,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2886 states. [2022-11-02 20:21:35,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2886 to 2624. [2022-11-02 20:21:35,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2624 states, 2623 states have (on average 1.0865421273351126) internal successors, (2850), 2623 states have internal predecessors, (2850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:35,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2624 states to 2624 states and 2850 transitions. [2022-11-02 20:21:35,842 INFO L78 Accepts]: Start accepts. Automaton has 2624 states and 2850 transitions. Word has length 164 [2022-11-02 20:21:35,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:21:35,843 INFO L495 AbstractCegarLoop]: Abstraction has 2624 states and 2850 transitions. [2022-11-02 20:21:35,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:35,843 INFO L276 IsEmpty]: Start isEmpty. Operand 2624 states and 2850 transitions. [2022-11-02 20:21:35,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-11-02 20:21:35,848 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:21:35,848 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:21:35,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3749162-c8c6-48d3-a92d-d40c5c0fc51f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:21:36,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3749162-c8c6-48d3-a92d-d40c5c0fc51f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-02 20:21:36,063 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:21:36,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:21:36,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1680615400, now seen corresponding path program 1 times [2022-11-02 20:21:36,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:21:36,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734801194] [2022-11-02 20:21:36,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:21:36,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:21:36,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:21:36,365 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 105 proven. 10 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-11-02 20:21:36,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:21:36,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734801194] [2022-11-02 20:21:36,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734801194] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:21:36,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [839628212] [2022-11-02 20:21:36,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:21:36,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:21:36,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3749162-c8c6-48d3-a92d-d40c5c0fc51f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:21:36,368 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3749162-c8c6-48d3-a92d-d40c5c0fc51f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:21:36,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3749162-c8c6-48d3-a92d-d40c5c0fc51f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-02 20:21:36,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:21:36,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:21:36,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:21:36,644 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-11-02 20:21:36,644 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:21:36,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [839628212] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:21:36,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 20:21:36,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2022-11-02 20:21:36,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006799111] [2022-11-02 20:21:36,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:21:36,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:21:36,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:21:36,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:21:36,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:21:36,650 INFO L87 Difference]: Start difference. First operand 2624 states and 2850 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:37,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:21:37,071 INFO L93 Difference]: Finished difference Result 5113 states and 5566 transitions. [2022-11-02 20:21:37,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:21:37,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2022-11-02 20:21:37,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:21:37,073 INFO L225 Difference]: With dead ends: 5113 [2022-11-02 20:21:37,073 INFO L226 Difference]: Without dead ends: 0 [2022-11-02 20:21:37,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:21:37,078 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 50 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:21:37,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 170 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 20:21:37,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-02 20:21:37,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-02 20:21:37,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:37,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-02 20:21:37,080 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 181 [2022-11-02 20:21:37,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:21:37,081 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 20:21:37,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:37,081 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-02 20:21:37,081 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-02 20:21:37,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-02 20:21:37,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3749162-c8c6-48d3-a92d-d40c5c0fc51f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:21:37,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3749162-c8c6-48d3-a92d-d40c5c0fc51f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-02 20:21:37,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-02 20:21:37,993 INFO L899 garLoopResultBuilder]: For program point L564(line 564) no Hoare annotation was computed. [2022-11-02 20:21:37,993 INFO L899 garLoopResultBuilder]: For program point L531(line 531) no Hoare annotation was computed. [2022-11-02 20:21:37,993 INFO L899 garLoopResultBuilder]: For program point L498(line 498) no Hoare annotation was computed. [2022-11-02 20:21:37,993 INFO L899 garLoopResultBuilder]: For program point L465(line 465) no Hoare annotation was computed. [2022-11-02 20:21:37,993 INFO L899 garLoopResultBuilder]: For program point L432(line 432) no Hoare annotation was computed. [2022-11-02 20:21:37,993 INFO L899 garLoopResultBuilder]: For program point L102(lines 102 400) no Hoare annotation was computed. [2022-11-02 20:21:37,993 INFO L899 garLoopResultBuilder]: For program point L598(line 598) no Hoare annotation was computed. [2022-11-02 20:21:37,994 INFO L899 garLoopResultBuilder]: For program point L334(lines 334 400) no Hoare annotation was computed. [2022-11-02 20:21:37,994 INFO L899 garLoopResultBuilder]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:37,994 INFO L899 garLoopResultBuilder]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:37,994 INFO L899 garLoopResultBuilder]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:37,994 INFO L899 garLoopResultBuilder]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:37,994 INFO L899 garLoopResultBuilder]: For program point L401(lines 401 403) no Hoare annotation was computed. [2022-11-02 20:21:37,994 INFO L899 garLoopResultBuilder]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:37,994 INFO L899 garLoopResultBuilder]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:37,994 INFO L899 garLoopResultBuilder]: For program point L302(lines 302 400) no Hoare annotation was computed. [2022-11-02 20:21:37,994 INFO L899 garLoopResultBuilder]: For program point L170(lines 170 400) no Hoare annotation was computed. [2022-11-02 20:21:37,994 INFO L899 garLoopResultBuilder]: For program point L567(line 567) no Hoare annotation was computed. [2022-11-02 20:21:37,995 INFO L899 garLoopResultBuilder]: For program point L534(line 534) no Hoare annotation was computed. [2022-11-02 20:21:37,995 INFO L899 garLoopResultBuilder]: For program point L501(line 501) no Hoare annotation was computed. [2022-11-02 20:21:37,995 INFO L899 garLoopResultBuilder]: For program point L468(line 468) no Hoare annotation was computed. [2022-11-02 20:21:37,995 INFO L899 garLoopResultBuilder]: For program point L435(line 435) no Hoare annotation was computed. [2022-11-02 20:21:37,995 INFO L899 garLoopResultBuilder]: For program point L402(line 402) no Hoare annotation was computed. [2022-11-02 20:21:37,995 INFO L899 garLoopResultBuilder]: For program point L204(lines 204 400) no Hoare annotation was computed. [2022-11-02 20:21:37,995 INFO L899 garLoopResultBuilder]: For program point L72(lines 72 400) no Hoare annotation was computed. [2022-11-02 20:21:37,995 INFO L899 garLoopResultBuilder]: For program point L271(lines 271 400) no Hoare annotation was computed. [2022-11-02 20:21:37,995 INFO L899 garLoopResultBuilder]: For program point L139(lines 139 400) no Hoare annotation was computed. [2022-11-02 20:21:37,995 INFO L899 garLoopResultBuilder]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:37,995 INFO L899 garLoopResultBuilder]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:37,996 INFO L899 garLoopResultBuilder]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:37,996 INFO L899 garLoopResultBuilder]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:37,996 INFO L899 garLoopResultBuilder]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:37,996 INFO L899 garLoopResultBuilder]: For program point L371(lines 371 400) no Hoare annotation was computed. [2022-11-02 20:21:37,996 INFO L899 garLoopResultBuilder]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:37,996 INFO L899 garLoopResultBuilder]: For program point L107(lines 107 400) no Hoare annotation was computed. [2022-11-02 20:21:37,996 INFO L899 garLoopResultBuilder]: For program point L41(lines 41 400) no Hoare annotation was computed. [2022-11-02 20:21:37,996 INFO L899 garLoopResultBuilder]: For program point L570(line 570) no Hoare annotation was computed. [2022-11-02 20:21:37,996 INFO L899 garLoopResultBuilder]: For program point L537(line 537) no Hoare annotation was computed. [2022-11-02 20:21:37,996 INFO L899 garLoopResultBuilder]: For program point L504(line 504) no Hoare annotation was computed. [2022-11-02 20:21:37,996 INFO L899 garLoopResultBuilder]: For program point L471(line 471) no Hoare annotation was computed. [2022-11-02 20:21:37,997 INFO L899 garLoopResultBuilder]: For program point L438(line 438) no Hoare annotation was computed. [2022-11-02 20:21:37,997 INFO L899 garLoopResultBuilder]: For program point L405(line 405) no Hoare annotation was computed. [2022-11-02 20:21:37,997 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 400) no Hoare annotation was computed. [2022-11-02 20:21:37,997 INFO L899 garLoopResultBuilder]: For program point L207(lines 207 400) no Hoare annotation was computed. [2022-11-02 20:21:37,997 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 400) no Hoare annotation was computed. [2022-11-02 20:21:37,997 INFO L899 garLoopResultBuilder]: For program point L373(lines 373 400) no Hoare annotation was computed. [2022-11-02 20:21:37,997 INFO L899 garLoopResultBuilder]: For program point L241(lines 241 400) no Hoare annotation was computed. [2022-11-02 20:21:37,997 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 400) no Hoare annotation was computed. [2022-11-02 20:21:37,997 INFO L899 garLoopResultBuilder]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:37,997 INFO L899 garLoopResultBuilder]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:37,997 INFO L899 garLoopResultBuilder]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:37,998 INFO L899 garLoopResultBuilder]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:37,998 INFO L899 garLoopResultBuilder]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:37,998 INFO L899 garLoopResultBuilder]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:37,998 INFO L899 garLoopResultBuilder]: For program point L275(lines 275 400) no Hoare annotation was computed. [2022-11-02 20:21:37,998 INFO L899 garLoopResultBuilder]: For program point L573(line 573) no Hoare annotation was computed. [2022-11-02 20:21:37,998 INFO L899 garLoopResultBuilder]: For program point L540(line 540) no Hoare annotation was computed. [2022-11-02 20:21:37,998 INFO L899 garLoopResultBuilder]: For program point L507(line 507) no Hoare annotation was computed. [2022-11-02 20:21:37,998 INFO L899 garLoopResultBuilder]: For program point L474(line 474) no Hoare annotation was computed. [2022-11-02 20:21:37,998 INFO L899 garLoopResultBuilder]: For program point L441(line 441) no Hoare annotation was computed. [2022-11-02 20:21:37,998 INFO L899 garLoopResultBuilder]: For program point L408(line 408) no Hoare annotation was computed. [2022-11-02 20:21:37,998 INFO L899 garLoopResultBuilder]: For program point L375(lines 375 400) no Hoare annotation was computed. [2022-11-02 20:21:37,999 INFO L899 garLoopResultBuilder]: For program point L309(lines 309 400) no Hoare annotation was computed. [2022-11-02 20:21:37,999 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 400) no Hoare annotation was computed. [2022-11-02 20:21:37,999 INFO L899 garLoopResultBuilder]: For program point L343(lines 343 400) no Hoare annotation was computed. [2022-11-02 20:21:37,999 INFO L899 garLoopResultBuilder]: For program point L112(lines 112 400) no Hoare annotation was computed. [2022-11-02 20:21:37,999 INFO L899 garLoopResultBuilder]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:37,999 INFO L899 garLoopResultBuilder]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:37,999 INFO L899 garLoopResultBuilder]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:37,999 INFO L899 garLoopResultBuilder]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:37,999 INFO L899 garLoopResultBuilder]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:37,999 INFO L899 garLoopResultBuilder]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:38,000 INFO L899 garLoopResultBuilder]: For program point L278(lines 278 400) no Hoare annotation was computed. [2022-11-02 20:21:38,000 INFO L899 garLoopResultBuilder]: For program point L146(lines 146 400) no Hoare annotation was computed. [2022-11-02 20:21:38,000 INFO L899 garLoopResultBuilder]: For program point L576(line 576) no Hoare annotation was computed. [2022-11-02 20:21:38,000 INFO L899 garLoopResultBuilder]: For program point L543(line 543) no Hoare annotation was computed. [2022-11-02 20:21:38,000 INFO L899 garLoopResultBuilder]: For program point L510(line 510) no Hoare annotation was computed. [2022-11-02 20:21:38,000 INFO L899 garLoopResultBuilder]: For program point L477(line 477) no Hoare annotation was computed. [2022-11-02 20:21:38,000 INFO L899 garLoopResultBuilder]: For program point L444(line 444) no Hoare annotation was computed. [2022-11-02 20:21:38,000 INFO L899 garLoopResultBuilder]: For program point L411(line 411) no Hoare annotation was computed. [2022-11-02 20:21:38,000 INFO L899 garLoopResultBuilder]: For program point L213(lines 213 400) no Hoare annotation was computed. [2022-11-02 20:21:38,001 INFO L899 garLoopResultBuilder]: For program point L82(lines 82 400) no Hoare annotation was computed. [2022-11-02 20:21:38,001 INFO L899 garLoopResultBuilder]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:38,001 INFO L899 garLoopResultBuilder]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:38,001 INFO L899 garLoopResultBuilder]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:38,001 INFO L899 garLoopResultBuilder]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:38,001 INFO L899 garLoopResultBuilder]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:38,001 INFO L899 garLoopResultBuilder]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:38,002 INFO L899 garLoopResultBuilder]: For program point L347(lines 347 400) no Hoare annotation was computed. [2022-11-02 20:21:38,002 INFO L899 garLoopResultBuilder]: For program point L248(lines 248 400) no Hoare annotation was computed. [2022-11-02 20:21:38,002 INFO L899 garLoopResultBuilder]: For program point L579(line 579) no Hoare annotation was computed. [2022-11-02 20:21:38,002 INFO L899 garLoopResultBuilder]: For program point L546(line 546) no Hoare annotation was computed. [2022-11-02 20:21:38,002 INFO L899 garLoopResultBuilder]: For program point L513(line 513) no Hoare annotation was computed. [2022-11-02 20:21:38,002 INFO L899 garLoopResultBuilder]: For program point L480(line 480) no Hoare annotation was computed. [2022-11-02 20:21:38,002 INFO L899 garLoopResultBuilder]: For program point L447(line 447) no Hoare annotation was computed. [2022-11-02 20:21:38,003 INFO L899 garLoopResultBuilder]: For program point L414(line 414) no Hoare annotation was computed. [2022-11-02 20:21:38,003 INFO L899 garLoopResultBuilder]: For program point L183(lines 183 400) no Hoare annotation was computed. [2022-11-02 20:21:38,003 INFO L899 garLoopResultBuilder]: For program point L150(lines 150 400) no Hoare annotation was computed. [2022-11-02 20:21:38,003 INFO L899 garLoopResultBuilder]: For program point L382(lines 382 400) no Hoare annotation was computed. [2022-11-02 20:21:38,003 INFO L899 garLoopResultBuilder]: For program point L316(lines 316 400) no Hoare annotation was computed. [2022-11-02 20:21:38,003 INFO L899 garLoopResultBuilder]: For program point L283(lines 283 400) no Hoare annotation was computed. [2022-11-02 20:21:38,003 INFO L899 garLoopResultBuilder]: For program point L118(lines 118 400) no Hoare annotation was computed. [2022-11-02 20:21:38,004 INFO L899 garLoopResultBuilder]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2022-11-02 20:21:38,004 INFO L899 garLoopResultBuilder]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:38,004 INFO L899 garLoopResultBuilder]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:38,004 INFO L899 garLoopResultBuilder]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:38,004 INFO L899 garLoopResultBuilder]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:38,004 INFO L899 garLoopResultBuilder]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:38,004 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-02 20:21:38,005 INFO L899 garLoopResultBuilder]: For program point L218(lines 218 400) no Hoare annotation was computed. [2022-11-02 20:21:38,005 INFO L899 garLoopResultBuilder]: For program point L53(lines 53 400) no Hoare annotation was computed. [2022-11-02 20:21:38,005 INFO L899 garLoopResultBuilder]: For program point L582(line 582) no Hoare annotation was computed. [2022-11-02 20:21:38,005 INFO L899 garLoopResultBuilder]: For program point L549(line 549) no Hoare annotation was computed. [2022-11-02 20:21:38,005 INFO L899 garLoopResultBuilder]: For program point L516(line 516) no Hoare annotation was computed. [2022-11-02 20:21:38,005 INFO L899 garLoopResultBuilder]: For program point L483(line 483) no Hoare annotation was computed. [2022-11-02 20:21:38,005 INFO L899 garLoopResultBuilder]: For program point L450(line 450) no Hoare annotation was computed. [2022-11-02 20:21:38,006 INFO L899 garLoopResultBuilder]: For program point L417(line 417) no Hoare annotation was computed. [2022-11-02 20:21:38,006 INFO L899 garLoopResultBuilder]: For program point L154(lines 154 400) no Hoare annotation was computed. [2022-11-02 20:21:38,006 INFO L895 garLoopResultBuilder]: At program point L584(lines 40 585) the Hoare annotation is: (let ((.cse4 (<= ~a8~0 13)) (.cse6 (<= 5 ~a16~0)) (.cse7 (= ~a20~0 1)) (.cse11 (<= ~a8~0 14)) (.cse3 (<= ~a16~0 5))) (let ((.cse8 (<= ~a17~0 0)) (.cse10 (or .cse4 (and .cse6 .cse11 .cse7) (and .cse11 .cse3))) (.cse5 (<= ~a7~0 0)) (.cse0 (<= ~a20~0 0)) (.cse1 (= ~a21~0 1)) (.cse2 (= ~a17~0 1)) (.cse9 (<= 15 ~a8~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse1 .cse2) (and .cse5 .cse6 .cse1 .cse2 .cse3 .cse7) (and .cse0 .cse8 .cse9) (and .cse0 .cse10) (and .cse4 .cse2 .cse7) (and .cse6 .cse8 .cse7) (and .cse5 .cse8 .cse7) (and .cse8 .cse10) (and .cse11 .cse1 .cse2 .cse3 .cse7) (and .cse5 .cse0 .cse1 .cse2 .cse9)))) [2022-11-02 20:21:38,007 INFO L899 garLoopResultBuilder]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:38,007 INFO L899 garLoopResultBuilder]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:38,007 INFO L899 garLoopResultBuilder]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:38,007 INFO L899 garLoopResultBuilder]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:38,007 INFO L899 garLoopResultBuilder]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:38,007 INFO L899 garLoopResultBuilder]: For program point L188(lines 188 400) no Hoare annotation was computed. [2022-11-02 20:21:38,007 INFO L899 garLoopResultBuilder]: For program point L552(line 552) no Hoare annotation was computed. [2022-11-02 20:21:38,008 INFO L899 garLoopResultBuilder]: For program point L519(line 519) no Hoare annotation was computed. [2022-11-02 20:21:38,008 INFO L899 garLoopResultBuilder]: For program point L486(line 486) no Hoare annotation was computed. [2022-11-02 20:21:38,008 INFO L899 garLoopResultBuilder]: For program point L453(line 453) no Hoare annotation was computed. [2022-11-02 20:21:38,008 INFO L899 garLoopResultBuilder]: For program point L420(line 420) no Hoare annotation was computed. [2022-11-02 20:21:38,008 INFO L899 garLoopResultBuilder]: For program point L387(lines 387 400) no Hoare annotation was computed. [2022-11-02 20:21:38,008 INFO L899 garLoopResultBuilder]: For program point L288(lines 288 400) no Hoare annotation was computed. [2022-11-02 20:21:38,008 INFO L899 garLoopResultBuilder]: For program point L255(lines 255 400) no Hoare annotation was computed. [2022-11-02 20:21:38,009 INFO L899 garLoopResultBuilder]: For program point L90(lines 90 400) no Hoare annotation was computed. [2022-11-02 20:21:38,009 INFO L899 garLoopResultBuilder]: For program point L355(lines 355 400) no Hoare annotation was computed. [2022-11-02 20:21:38,009 INFO L899 garLoopResultBuilder]: For program point L322(lines 322 400) no Hoare annotation was computed. [2022-11-02 20:21:38,009 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-02 20:21:38,009 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 400) no Hoare annotation was computed. [2022-11-02 20:21:38,009 INFO L902 garLoopResultBuilder]: At program point L587(lines 587 604) the Hoare annotation is: true [2022-11-02 20:21:38,010 INFO L899 garLoopResultBuilder]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:38,010 INFO L899 garLoopResultBuilder]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:38,010 INFO L899 garLoopResultBuilder]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:38,010 INFO L899 garLoopResultBuilder]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:38,010 INFO L899 garLoopResultBuilder]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:38,010 INFO L899 garLoopResultBuilder]: For program point L224(lines 224 400) no Hoare annotation was computed. [2022-11-02 20:21:38,010 INFO L899 garLoopResultBuilder]: For program point L158(lines 158 400) no Hoare annotation was computed. [2022-11-02 20:21:38,011 INFO L899 garLoopResultBuilder]: For program point L59(lines 59 400) no Hoare annotation was computed. [2022-11-02 20:21:38,011 INFO L899 garLoopResultBuilder]: For program point L555(line 555) no Hoare annotation was computed. [2022-11-02 20:21:38,011 INFO L899 garLoopResultBuilder]: For program point L522(line 522) no Hoare annotation was computed. [2022-11-02 20:21:38,011 INFO L899 garLoopResultBuilder]: For program point L489(line 489) no Hoare annotation was computed. [2022-11-02 20:21:38,011 INFO L899 garLoopResultBuilder]: For program point L456(line 456) no Hoare annotation was computed. [2022-11-02 20:21:38,011 INFO L899 garLoopResultBuilder]: For program point L423(line 423) no Hoare annotation was computed. [2022-11-02 20:21:38,011 INFO L899 garLoopResultBuilder]: For program point L94(lines 94 400) no Hoare annotation was computed. [2022-11-02 20:21:38,012 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-02 20:21:38,012 INFO L899 garLoopResultBuilder]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:38,012 INFO L899 garLoopResultBuilder]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:38,012 INFO L899 garLoopResultBuilder]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:38,012 INFO L899 garLoopResultBuilder]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:38,012 INFO L899 garLoopResultBuilder]: For program point L392(lines 392 400) no Hoare annotation was computed. [2022-11-02 20:21:38,012 INFO L899 garLoopResultBuilder]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:38,013 INFO L899 garLoopResultBuilder]: For program point L326(lines 326 400) no Hoare annotation was computed. [2022-11-02 20:21:38,013 INFO L899 garLoopResultBuilder]: For program point L260(lines 260 400) no Hoare annotation was computed. [2022-11-02 20:21:38,013 INFO L899 garLoopResultBuilder]: For program point L558(line 558) no Hoare annotation was computed. [2022-11-02 20:21:38,013 INFO L899 garLoopResultBuilder]: For program point L525(line 525) no Hoare annotation was computed. [2022-11-02 20:21:38,013 INFO L899 garLoopResultBuilder]: For program point L492(line 492) no Hoare annotation was computed. [2022-11-02 20:21:38,013 INFO L899 garLoopResultBuilder]: For program point L459(line 459) no Hoare annotation was computed. [2022-11-02 20:21:38,013 INFO L899 garLoopResultBuilder]: For program point L426(line 426) no Hoare annotation was computed. [2022-11-02 20:21:38,014 INFO L899 garLoopResultBuilder]: For program point L228(lines 228 400) no Hoare annotation was computed. [2022-11-02 20:21:38,014 INFO L899 garLoopResultBuilder]: For program point L162(lines 162 400) no Hoare annotation was computed. [2022-11-02 20:21:38,014 INFO L899 garLoopResultBuilder]: For program point L129(lines 129 400) no Hoare annotation was computed. [2022-11-02 20:21:38,014 INFO L899 garLoopResultBuilder]: For program point L328(lines 328 400) no Hoare annotation was computed. [2022-11-02 20:21:38,014 INFO L899 garLoopResultBuilder]: For program point L196(lines 196 400) no Hoare annotation was computed. [2022-11-02 20:21:38,014 INFO L899 garLoopResultBuilder]: For program point L64(lines 64 400) no Hoare annotation was computed. [2022-11-02 20:21:38,014 INFO L899 garLoopResultBuilder]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:38,015 INFO L895 garLoopResultBuilder]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse4 (<= ~a8~0 13)) (.cse6 (<= 5 ~a16~0)) (.cse7 (= ~a20~0 1)) (.cse11 (<= ~a8~0 14)) (.cse3 (<= ~a16~0 5))) (let ((.cse8 (<= ~a17~0 0)) (.cse10 (or .cse4 (and .cse6 .cse11 .cse7) (and .cse11 .cse3))) (.cse5 (<= ~a7~0 0)) (.cse0 (<= ~a20~0 0)) (.cse1 (= ~a21~0 1)) (.cse2 (= ~a17~0 1)) (.cse9 (<= 15 ~a8~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse1 .cse2) (and .cse5 .cse6 .cse1 .cse2 .cse3 .cse7) (and .cse0 .cse8 .cse9) (and .cse0 .cse10) (and .cse4 .cse2 .cse7) (and .cse6 .cse8 .cse7) (and .cse5 .cse8 .cse7) (and .cse8 .cse10) (and .cse11 .cse1 .cse2 .cse3 .cse7) (and .cse5 .cse0 .cse1 .cse2 .cse9)))) [2022-11-02 20:21:38,015 INFO L899 garLoopResultBuilder]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:38,015 INFO L899 garLoopResultBuilder]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:38,015 INFO L899 garLoopResultBuilder]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:38,015 INFO L899 garLoopResultBuilder]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:38,016 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 400) no Hoare annotation was computed. [2022-11-02 20:21:38,016 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-02 20:21:38,016 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 471) no Hoare annotation was computed. [2022-11-02 20:21:38,016 INFO L899 garLoopResultBuilder]: For program point L561(line 561) no Hoare annotation was computed. [2022-11-02 20:21:38,016 INFO L899 garLoopResultBuilder]: For program point L528(line 528) no Hoare annotation was computed. [2022-11-02 20:21:38,016 INFO L899 garLoopResultBuilder]: For program point L495(line 495) no Hoare annotation was computed. [2022-11-02 20:21:38,017 INFO L899 garLoopResultBuilder]: For program point L462(line 462) no Hoare annotation was computed. [2022-11-02 20:21:38,017 INFO L899 garLoopResultBuilder]: For program point L429(line 429) no Hoare annotation was computed. [2022-11-02 20:21:38,017 INFO L899 garLoopResultBuilder]: For program point L363(lines 363 400) no Hoare annotation was computed. [2022-11-02 20:21:38,017 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 400) no Hoare annotation was computed. [2022-11-02 20:21:38,017 INFO L899 garLoopResultBuilder]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:38,017 INFO L899 garLoopResultBuilder]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:38,017 INFO L899 garLoopResultBuilder]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:38,018 INFO L899 garLoopResultBuilder]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:38,018 INFO L899 garLoopResultBuilder]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2022-11-02 20:21:38,018 INFO L899 garLoopResultBuilder]: For program point L365(lines 365 400) no Hoare annotation was computed. [2022-11-02 20:21:38,018 INFO L899 garLoopResultBuilder]: For program point L266(lines 266 400) no Hoare annotation was computed. [2022-11-02 20:21:38,018 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 400) no Hoare annotation was computed. [2022-11-02 20:21:38,018 INFO L899 garLoopResultBuilder]: For program point L134(lines 134 400) no Hoare annotation was computed. [2022-11-02 20:21:38,022 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:21:38,024 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 20:21:38,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:21:38 BoogieIcfgContainer [2022-11-02 20:21:38,041 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 20:21:38,042 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:21:38,042 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:21:38,042 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:21:38,052 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:21:25" (3/4) ... [2022-11-02 20:21:38,055 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-02 20:21:38,078 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-02 20:21:38,079 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-02 20:21:38,080 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-02 20:21:38,081 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-02 20:21:38,236 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3749162-c8c6-48d3-a92d-d40c5c0fc51f/bin/uautomizer-Dbtcem3rbc/witness.graphml [2022-11-02 20:21:38,236 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:21:38,237 INFO L158 Benchmark]: Toolchain (without parser) took 15505.84ms. Allocated memory was 127.9MB in the beginning and 308.3MB in the end (delta: 180.4MB). Free memory was 90.4MB in the beginning and 177.0MB in the end (delta: -86.7MB). Peak memory consumption was 93.8MB. Max. memory is 16.1GB. [2022-11-02 20:21:38,237 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 90.2MB. Free memory was 59.8MB in the beginning and 59.8MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:21:38,237 INFO L158 Benchmark]: CACSL2BoogieTranslator took 715.27ms. Allocated memory is still 127.9MB. Free memory was 90.1MB in the beginning and 85.2MB in the end (delta: 4.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-02 20:21:38,238 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.56ms. Allocated memory is still 127.9MB. Free memory was 85.2MB in the beginning and 79.7MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-02 20:21:38,239 INFO L158 Benchmark]: Boogie Preprocessor took 70.47ms. Allocated memory is still 127.9MB. Free memory was 79.7MB in the beginning and 75.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-02 20:21:38,240 INFO L158 Benchmark]: RCFGBuilder took 1408.79ms. Allocated memory is still 127.9MB. Free memory was 74.8MB in the beginning and 95.0MB in the end (delta: -20.2MB). Peak memory consumption was 46.0MB. Max. memory is 16.1GB. [2022-11-02 20:21:38,240 INFO L158 Benchmark]: TraceAbstraction took 13032.61ms. Allocated memory was 127.9MB in the beginning and 308.3MB in the end (delta: 180.4MB). Free memory was 94.3MB in the beginning and 187.5MB in the end (delta: -93.2MB). Peak memory consumption was 148.9MB. Max. memory is 16.1GB. [2022-11-02 20:21:38,240 INFO L158 Benchmark]: Witness Printer took 194.09ms. Allocated memory is still 308.3MB. Free memory was 187.5MB in the beginning and 177.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-02 20:21:38,243 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 was 59.8MB in the beginning and 59.8MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 715.27ms. Allocated memory is still 127.9MB. Free memory was 90.1MB in the beginning and 85.2MB in the end (delta: 4.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.56ms. Allocated memory is still 127.9MB. Free memory was 85.2MB in the beginning and 79.7MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.47ms. Allocated memory is still 127.9MB. Free memory was 79.7MB in the beginning and 75.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1408.79ms. Allocated memory is still 127.9MB. Free memory was 74.8MB in the beginning and 95.0MB in the end (delta: -20.2MB). Peak memory consumption was 46.0MB. Max. memory is 16.1GB. * TraceAbstraction took 13032.61ms. Allocated memory was 127.9MB in the beginning and 308.3MB in the end (delta: 180.4MB). Free memory was 94.3MB in the beginning and 187.5MB in the end (delta: -93.2MB). Peak memory consumption was 148.9MB. Max. memory is 16.1GB. * Witness Printer took 194.09ms. Allocated memory is still 308.3MB. Free memory was 187.5MB in the beginning and 177.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 471]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 198 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.9s, OverallIterations: 12, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 6.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1350 SdHoareTripleChecker+Valid, 5.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1350 mSDsluCounter, 1077 SdHoareTripleChecker+Invalid, 4.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 65 mSDsCounter, 589 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4027 IncrementalHoareTripleChecker+Invalid, 4616 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 589 mSolverCounterUnsat, 1012 mSDtfsCounter, 4027 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 671 GetRequests, 650 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2755occurred in iteration=10, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 1441 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 49 NumberOfFragments, 331 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1190 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 3 FomulaSimplificationsInter, 918 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 2218 NumberOfCodeBlocks, 2218 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 2202 ConstructedInterpolants, 0 QuantifiedInterpolants, 5200 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1271 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 16 InterpolantComputations, 12 PerfectInterpolantSequences, 933/1023 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: ((((((((((((a20 <= 0 && a21 == 1) && a17 == 1) && a16 <= 5) || ((a8 <= 13 && a21 == 1) && a17 == 1)) || (((((a7 <= 0 && 5 <= a16) && a21 == 1) && a17 == 1) && a16 <= 5) && a20 == 1)) || ((a20 <= 0 && a17 <= 0) && 15 <= a8)) || (a20 <= 0 && ((a8 <= 13 || ((5 <= a16 && a8 <= 14) && a20 == 1)) || (a8 <= 14 && a16 <= 5)))) || ((a8 <= 13 && a17 == 1) && a20 == 1)) || ((5 <= a16 && a17 <= 0) && a20 == 1)) || ((a7 <= 0 && a17 <= 0) && a20 == 1)) || (a17 <= 0 && ((a8 <= 13 || ((5 <= a16 && a8 <= 14) && a20 == 1)) || (a8 <= 14 && a16 <= 5)))) || ((((a8 <= 14 && a21 == 1) && a17 == 1) && a16 <= 5) && a20 == 1)) || ((((a7 <= 0 && a20 <= 0) && a21 == 1) && a17 == 1) && 15 <= a8) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: ((((((((((((a20 <= 0 && a21 == 1) && a17 == 1) && a16 <= 5) || ((a8 <= 13 && a21 == 1) && a17 == 1)) || (((((a7 <= 0 && 5 <= a16) && a21 == 1) && a17 == 1) && a16 <= 5) && a20 == 1)) || ((a20 <= 0 && a17 <= 0) && 15 <= a8)) || (a20 <= 0 && ((a8 <= 13 || ((5 <= a16 && a8 <= 14) && a20 == 1)) || (a8 <= 14 && a16 <= 5)))) || ((a8 <= 13 && a17 == 1) && a20 == 1)) || ((5 <= a16 && a17 <= 0) && a20 == 1)) || ((a7 <= 0 && a17 <= 0) && a20 == 1)) || (a17 <= 0 && ((a8 <= 13 || ((5 <= a16 && a8 <= 14) && a20 == 1)) || (a8 <= 14 && a16 <= 5)))) || ((((a8 <= 14 && a21 == 1) && a17 == 1) && a16 <= 5) && a20 == 1)) || ((((a7 <= 0 && a20 <= 0) && a21 == 1) && a17 == 1) && 15 <= a8) RESULT: Ultimate proved your program to be correct! [2022-11-02 20:21:38,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3749162-c8c6-48d3-a92d-d40c5c0fc51f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE