./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3b3b0b8-d446-4f43-a915-6493168b2bc9/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3b3b0b8-d446-4f43-a915-6493168b2bc9/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_f3b3b0b8-d446-4f43-a915-6493168b2bc9/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3b3b0b8-d446-4f43-a915-6493168b2bc9/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3b3b0b8-d446-4f43-a915-6493168b2bc9/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_f3b3b0b8-d446-4f43-a915-6493168b2bc9/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 1a60868809a0ad0cb359a526a1f66a469756e048a31d4d83c9a3de774ac0575c --- 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 20:34:53,429 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:34:53,431 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:34:53,475 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:34:53,475 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:34:53,479 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:34:53,481 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:34:53,484 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:34:53,486 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:34:53,492 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:34:53,493 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:34:53,495 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:34:53,495 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:34:53,498 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:34:53,499 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:34:53,500 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:34:53,502 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:34:53,503 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:34:53,504 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:34:53,511 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:34:53,512 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:34:53,513 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:34:53,516 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:34:53,517 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:34:53,525 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:34:53,526 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:34:53,526 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:34:53,528 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:34:53,528 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:34:53,529 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:34:53,530 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:34:53,531 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:34:53,533 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:34:53,534 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:34:53,535 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:34:53,536 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:34:53,537 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:34:53,537 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:34:53,537 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:34:53,538 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:34:53,539 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:34:53,540 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3b3b0b8-d446-4f43-a915-6493168b2bc9/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-02 20:34:53,574 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:34:53,574 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:34:53,578 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:34:53,578 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:34:53,579 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:34:53,579 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:34:53,580 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:34:53,580 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:34:53,580 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:34:53,580 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:34:53,581 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:34:53,581 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:34:53,581 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:34:53,582 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:34:53,582 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:34:53,582 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:34:53,582 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:34:53,582 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:34:53,582 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:34:53,583 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:34:53,583 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:34:53,583 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:34:53,583 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:34:53,584 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:34:53,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:34:53,584 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:34:53,585 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:34:53,586 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:34:53,586 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:34:53,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:34:53,586 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:34:53,586 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:34:53,587 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:34:53,587 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_f3b3b0b8-d446-4f43-a915-6493168b2bc9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3b3b0b8-d446-4f43-a915-6493168b2bc9/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a60868809a0ad0cb359a526a1f66a469756e048a31d4d83c9a3de774ac0575c [2022-11-02 20:34:53,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:34:53,896 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:34:53,898 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:34:53,900 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:34:53,900 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:34:53,902 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3b3b0b8-d446-4f43-a915-6493168b2bc9/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c [2022-11-02 20:34:53,977 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3b3b0b8-d446-4f43-a915-6493168b2bc9/bin/uautomizer-Dbtcem3rbc/data/f1c6306da/7143cc5b45ce49feb9b03ba4a6dd07f7/FLAGf4ef85847 [2022-11-02 20:34:54,540 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:34:54,541 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3b3b0b8-d446-4f43-a915-6493168b2bc9/sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c [2022-11-02 20:34:54,552 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3b3b0b8-d446-4f43-a915-6493168b2bc9/bin/uautomizer-Dbtcem3rbc/data/f1c6306da/7143cc5b45ce49feb9b03ba4a6dd07f7/FLAGf4ef85847 [2022-11-02 20:34:54,862 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3b3b0b8-d446-4f43-a915-6493168b2bc9/bin/uautomizer-Dbtcem3rbc/data/f1c6306da/7143cc5b45ce49feb9b03ba4a6dd07f7 [2022-11-02 20:34:54,864 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:34:54,866 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:34:54,871 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:34:54,872 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:34:54,875 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:34:54,876 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:34:54" (1/1) ... [2022-11-02 20:34:54,877 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38f0b611 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:54, skipping insertion in model container [2022-11-02 20:34:54,879 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:34:54" (1/1) ... [2022-11-02 20:34:54,887 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:34:54,947 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:34:55,229 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_f3b3b0b8-d446-4f43-a915-6493168b2bc9/sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c[11731,11744] [2022-11-02 20:34:55,270 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:34:55,278 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:34:55,321 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_f3b3b0b8-d446-4f43-a915-6493168b2bc9/sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c[11731,11744] [2022-11-02 20:34:55,342 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:34:55,364 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:34:55,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:55 WrapperNode [2022-11-02 20:34:55,365 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:34:55,366 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:34:55,366 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:34:55,366 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:34:55,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:55" (1/1) ... [2022-11-02 20:34:55,399 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:55" (1/1) ... [2022-11-02 20:34:55,442 INFO L138 Inliner]: procedures = 54, calls = 155, calls flagged for inlining = 21, calls inlined = 18, statements flattened = 242 [2022-11-02 20:34:55,443 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:34:55,443 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:34:55,443 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:34:55,444 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:34:55,454 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:55" (1/1) ... [2022-11-02 20:34:55,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:55" (1/1) ... [2022-11-02 20:34:55,465 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:55" (1/1) ... [2022-11-02 20:34:55,465 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:55" (1/1) ... [2022-11-02 20:34:55,470 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:55" (1/1) ... [2022-11-02 20:34:55,474 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:55" (1/1) ... [2022-11-02 20:34:55,491 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:55" (1/1) ... [2022-11-02 20:34:55,492 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:55" (1/1) ... [2022-11-02 20:34:55,494 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:34:55,495 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:34:55,495 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:34:55,495 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:34:55,506 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:55" (1/1) ... [2022-11-02 20:34:55,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:34:55,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3b3b0b8-d446-4f43-a915-6493168b2bc9/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:34:55,544 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3b3b0b8-d446-4f43-a915-6493168b2bc9/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:34:55,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3b3b0b8-d446-4f43-a915-6493168b2bc9/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:34:55,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:34:55,589 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-02 20:34:55,590 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-02 20:34:55,590 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-02 20:34:55,590 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-02 20:34:55,590 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-02 20:34:55,590 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-02 20:34:55,591 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-02 20:34:55,591 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-02 20:34:55,592 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-02 20:34:55,592 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-02 20:34:55,592 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-02 20:34:55,593 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-02 20:34:55,593 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-02 20:34:55,593 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-02 20:34:55,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:34:55,593 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-02 20:34:55,594 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-02 20:34:55,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:34:55,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:34:55,701 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:34:55,703 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:34:56,090 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:34:56,097 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:34:56,098 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-02 20:34:56,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:34:56 BoogieIcfgContainer [2022-11-02 20:34:56,100 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:34:56,102 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:34:56,102 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:34:56,105 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:34:56,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:34:54" (1/3) ... [2022-11-02 20:34:56,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c82f484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:34:56, skipping insertion in model container [2022-11-02 20:34:56,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:55" (2/3) ... [2022-11-02 20:34:56,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c82f484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:34:56, skipping insertion in model container [2022-11-02 20:34:56,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:34:56" (3/3) ... [2022-11-02 20:34:56,108 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product39.cil.c [2022-11-02 20:34:56,133 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:34:56,133 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:34:56,186 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:34:56,193 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;@19cda738, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:34:56,194 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:34:56,198 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 68 states have (on average 1.3823529411764706) internal successors, (94), 77 states have internal predecessors, (94), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-02 20:34:56,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-02 20:34:56,212 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:34:56,213 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] [2022-11-02 20:34:56,214 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:34:56,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:34:56,222 INFO L85 PathProgramCache]: Analyzing trace with hash -929620248, now seen corresponding path program 1 times [2022-11-02 20:34:56,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:34:56,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520422690] [2022-11-02 20:34:56,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:34:56,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:34:56,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:56,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:34:56,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:56,470 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 20:34:56,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:34:56,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520422690] [2022-11-02 20:34:56,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520422690] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:34:56,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:34:56,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:34:56,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585012183] [2022-11-02 20:34:56,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:34:56,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 20:34:56,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:34:56,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 20:34:56,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:34:56,523 INFO L87 Difference]: Start difference. First operand has 92 states, 68 states have (on average 1.3823529411764706) internal successors, (94), 77 states have internal predecessors, (94), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 20:34:56,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:34:56,559 INFO L93 Difference]: Finished difference Result 176 states and 239 transitions. [2022-11-02 20:34:56,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 20:34:56,577 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2022-11-02 20:34:56,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:34:56,589 INFO L225 Difference]: With dead ends: 176 [2022-11-02 20:34:56,590 INFO L226 Difference]: Without dead ends: 83 [2022-11-02 20:34:56,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:34:56,599 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:34:56,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:34:56,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-11-02 20:34:56,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2022-11-02 20:34:56,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 61 states have (on average 1.3114754098360655) internal successors, (80), 69 states have internal predecessors, (80), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-02 20:34:56,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 107 transitions. [2022-11-02 20:34:56,643 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 107 transitions. Word has length 23 [2022-11-02 20:34:56,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:34:56,644 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 107 transitions. [2022-11-02 20:34:56,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 20:34:56,645 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 107 transitions. [2022-11-02 20:34:56,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-02 20:34:56,647 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:34:56,647 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:34:56,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:34:56,648 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:34:56,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:34:56,649 INFO L85 PathProgramCache]: Analyzing trace with hash 267832740, now seen corresponding path program 1 times [2022-11-02 20:34:56,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:34:56,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022872243] [2022-11-02 20:34:56,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:34:56,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:34:56,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:56,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-02 20:34:56,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:56,823 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 20:34:56,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:34:56,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022872243] [2022-11-02 20:34:56,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022872243] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:34:56,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:34:56,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:34:56,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074768289] [2022-11-02 20:34:56,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:34:56,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:34:56,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:34:56,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:34:56,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:34:56,827 INFO L87 Difference]: Start difference. First operand 83 states and 107 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 20:34:56,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:34:56,856 INFO L93 Difference]: Finished difference Result 128 states and 164 transitions. [2022-11-02 20:34:56,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:34:56,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2022-11-02 20:34:56,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:34:56,858 INFO L225 Difference]: With dead ends: 128 [2022-11-02 20:34:56,858 INFO L226 Difference]: Without dead ends: 74 [2022-11-02 20:34:56,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:34:56,861 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 16 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:34:56,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 167 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:34:56,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-11-02 20:34:56,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-11-02 20:34:56,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 55 states have (on average 1.3272727272727274) internal successors, (73), 63 states have internal predecessors, (73), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-02 20:34:56,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 95 transitions. [2022-11-02 20:34:56,872 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 95 transitions. Word has length 24 [2022-11-02 20:34:56,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:34:56,872 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 95 transitions. [2022-11-02 20:34:56,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 20:34:56,873 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 95 transitions. [2022-11-02 20:34:56,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-02 20:34:56,874 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:34:56,874 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] [2022-11-02 20:34:56,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:34:56,875 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:34:56,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:34:56,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1921198566, now seen corresponding path program 1 times [2022-11-02 20:34:56,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:34:56,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788929432] [2022-11-02 20:34:56,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:34:56,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:34:56,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:57,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-02 20:34:57,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:57,114 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 20:34:57,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:34:57,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788929432] [2022-11-02 20:34:57,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788929432] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:34:57,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:34:57,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:34:57,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769773853] [2022-11-02 20:34:57,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:34:57,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:34:57,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:34:57,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:34:57,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:34:57,122 INFO L87 Difference]: Start difference. First operand 74 states and 95 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 20:34:57,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:34:57,406 INFO L93 Difference]: Finished difference Result 249 states and 326 transitions. [2022-11-02 20:34:57,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:34:57,407 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2022-11-02 20:34:57,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:34:57,409 INFO L225 Difference]: With dead ends: 249 [2022-11-02 20:34:57,409 INFO L226 Difference]: Without dead ends: 182 [2022-11-02 20:34:57,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:34:57,411 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 197 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:34:57,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 468 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:34:57,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-11-02 20:34:57,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 176. [2022-11-02 20:34:57,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 129 states have (on average 1.3565891472868217) internal successors, (175), 147 states have internal predecessors, (175), 27 states have call successors, (27), 19 states have call predecessors, (27), 19 states have return successors, (28), 19 states have call predecessors, (28), 27 states have call successors, (28) [2022-11-02 20:34:57,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 230 transitions. [2022-11-02 20:34:57,468 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 230 transitions. Word has length 28 [2022-11-02 20:34:57,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:34:57,468 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 230 transitions. [2022-11-02 20:34:57,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 20:34:57,469 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 230 transitions. [2022-11-02 20:34:57,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-02 20:34:57,493 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:34:57,493 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] [2022-11-02 20:34:57,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:34:57,494 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:34:57,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:34:57,495 INFO L85 PathProgramCache]: Analyzing trace with hash -2070226864, now seen corresponding path program 1 times [2022-11-02 20:34:57,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:34:57,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532958035] [2022-11-02 20:34:57,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:34:57,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:34:57,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:57,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-02 20:34:57,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:57,623 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 20:34:57,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:34:57,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532958035] [2022-11-02 20:34:57,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532958035] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:34:57,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:34:57,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:34:57,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369686067] [2022-11-02 20:34:57,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:34:57,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:34:57,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:34:57,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:34:57,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:34:57,627 INFO L87 Difference]: Start difference. First operand 176 states and 230 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 20:34:57,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:34:57,753 INFO L93 Difference]: Finished difference Result 515 states and 686 transitions. [2022-11-02 20:34:57,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 20:34:57,754 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2022-11-02 20:34:57,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:34:57,757 INFO L225 Difference]: With dead ends: 515 [2022-11-02 20:34:57,758 INFO L226 Difference]: Without dead ends: 346 [2022-11-02 20:34:57,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:34:57,760 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 66 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:34:57,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 464 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:34:57,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2022-11-02 20:34:57,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 337. [2022-11-02 20:34:57,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 244 states have (on average 1.3401639344262295) internal successors, (327), 279 states have internal predecessors, (327), 54 states have call successors, (54), 38 states have call predecessors, (54), 38 states have return successors, (59), 38 states have call predecessors, (59), 54 states have call successors, (59) [2022-11-02 20:34:57,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 440 transitions. [2022-11-02 20:34:57,851 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 440 transitions. Word has length 32 [2022-11-02 20:34:57,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:34:57,853 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 440 transitions. [2022-11-02 20:34:57,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 20:34:57,854 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 440 transitions. [2022-11-02 20:34:57,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-02 20:34:57,858 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:34:57,859 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] [2022-11-02 20:34:57,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:34:57,859 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:34:57,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:34:57,860 INFO L85 PathProgramCache]: Analyzing trace with hash 680626324, now seen corresponding path program 1 times [2022-11-02 20:34:57,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:34:57,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392159626] [2022-11-02 20:34:57,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:34:57,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:34:57,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:58,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-02 20:34:58,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:58,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-02 20:34:58,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:58,077 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 20:34:58,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:34:58,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392159626] [2022-11-02 20:34:58,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392159626] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:34:58,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:34:58,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:34:58,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420172387] [2022-11-02 20:34:58,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:34:58,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:34:58,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:34:58,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:34:58,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:34:58,092 INFO L87 Difference]: Start difference. First operand 337 states and 440 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 20:34:58,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:34:58,451 INFO L93 Difference]: Finished difference Result 830 states and 1110 transitions. [2022-11-02 20:34:58,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 20:34:58,452 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 36 [2022-11-02 20:34:58,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:34:58,455 INFO L225 Difference]: With dead ends: 830 [2022-11-02 20:34:58,456 INFO L226 Difference]: Without dead ends: 500 [2022-11-02 20:34:58,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:34:58,459 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 108 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:34:58,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 193 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:34:58,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2022-11-02 20:34:58,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 481. [2022-11-02 20:34:58,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 352 states have (on average 1.2840909090909092) internal successors, (452), 385 states have internal predecessors, (452), 68 states have call successors, (68), 60 states have call predecessors, (68), 60 states have return successors, (93), 62 states have call predecessors, (93), 68 states have call successors, (93) [2022-11-02 20:34:58,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 613 transitions. [2022-11-02 20:34:58,512 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 613 transitions. Word has length 36 [2022-11-02 20:34:58,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:34:58,513 INFO L495 AbstractCegarLoop]: Abstraction has 481 states and 613 transitions. [2022-11-02 20:34:58,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 20:34:58,513 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 613 transitions. [2022-11-02 20:34:58,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-02 20:34:58,514 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:34:58,515 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] [2022-11-02 20:34:58,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:34:58,515 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:34:58,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:34:58,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1280424257, now seen corresponding path program 1 times [2022-11-02 20:34:58,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:34:58,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367573329] [2022-11-02 20:34:58,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:34:58,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:34:58,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:58,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-02 20:34:58,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:58,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-02 20:34:58,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:58,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-02 20:34:58,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:58,643 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 20:34:58,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:34:58,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367573329] [2022-11-02 20:34:58,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367573329] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:34:58,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:34:58,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:34:58,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370381452] [2022-11-02 20:34:58,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:34:58,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:34:58,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:34:58,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:34:58,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:34:58,645 INFO L87 Difference]: Start difference. First operand 481 states and 613 transitions. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 20:34:59,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:34:59,038 INFO L93 Difference]: Finished difference Result 1061 states and 1368 transitions. [2022-11-02 20:34:59,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:34:59,038 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 46 [2022-11-02 20:34:59,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:34:59,044 INFO L225 Difference]: With dead ends: 1061 [2022-11-02 20:34:59,044 INFO L226 Difference]: Without dead ends: 587 [2022-11-02 20:34:59,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:34:59,055 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 113 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:34:59,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 208 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 20:34:59,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2022-11-02 20:34:59,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 573. [2022-11-02 20:34:59,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 424 states have (on average 1.25) internal successors, (530), 457 states have internal predecessors, (530), 76 states have call successors, (76), 60 states have call predecessors, (76), 72 states have return successors, (113), 78 states have call predecessors, (113), 76 states have call successors, (113) [2022-11-02 20:34:59,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 719 transitions. [2022-11-02 20:34:59,135 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 719 transitions. Word has length 46 [2022-11-02 20:34:59,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:34:59,137 INFO L495 AbstractCegarLoop]: Abstraction has 573 states and 719 transitions. [2022-11-02 20:34:59,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 20:34:59,137 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 719 transitions. [2022-11-02 20:34:59,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-02 20:34:59,139 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:34:59,139 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] [2022-11-02 20:34:59,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:34:59,140 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:34:59,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:34:59,141 INFO L85 PathProgramCache]: Analyzing trace with hash -713720449, now seen corresponding path program 1 times [2022-11-02 20:34:59,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:34:59,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059955808] [2022-11-02 20:34:59,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:34:59,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:34:59,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:59,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-02 20:34:59,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:59,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-02 20:34:59,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:59,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-02 20:34:59,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:59,286 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 20:34:59,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:34:59,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059955808] [2022-11-02 20:34:59,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059955808] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:34:59,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:34:59,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:34:59,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628479579] [2022-11-02 20:34:59,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:34:59,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:34:59,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:34:59,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:34:59,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:34:59,289 INFO L87 Difference]: Start difference. First operand 573 states and 719 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 20:34:59,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:34:59,572 INFO L93 Difference]: Finished difference Result 1173 states and 1512 transitions. [2022-11-02 20:34:59,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:34:59,572 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 46 [2022-11-02 20:34:59,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:34:59,576 INFO L225 Difference]: With dead ends: 1173 [2022-11-02 20:34:59,576 INFO L226 Difference]: Without dead ends: 607 [2022-11-02 20:34:59,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:34:59,582 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 118 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:34:59,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 181 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:34:59,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2022-11-02 20:34:59,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 581. [2022-11-02 20:34:59,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 432 states have (on average 1.2453703703703705) internal successors, (538), 465 states have internal predecessors, (538), 76 states have call successors, (76), 60 states have call predecessors, (76), 72 states have return successors, (113), 78 states have call predecessors, (113), 76 states have call successors, (113) [2022-11-02 20:34:59,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 727 transitions. [2022-11-02 20:34:59,653 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 727 transitions. Word has length 46 [2022-11-02 20:34:59,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:34:59,654 INFO L495 AbstractCegarLoop]: Abstraction has 581 states and 727 transitions. [2022-11-02 20:34:59,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 20:34:59,656 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 727 transitions. [2022-11-02 20:34:59,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-02 20:34:59,658 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:34:59,659 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] [2022-11-02 20:34:59,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:34:59,659 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:34:59,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:34:59,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1531368899, now seen corresponding path program 1 times [2022-11-02 20:34:59,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:34:59,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745074669] [2022-11-02 20:34:59,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:34:59,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:34:59,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:59,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-02 20:34:59,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:59,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-02 20:34:59,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:59,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-02 20:34:59,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:59,802 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 20:34:59,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:34:59,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745074669] [2022-11-02 20:34:59,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745074669] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:34:59,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:34:59,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:34:59,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054513551] [2022-11-02 20:34:59,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:34:59,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:34:59,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:34:59,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:34:59,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:34:59,805 INFO L87 Difference]: Start difference. First operand 581 states and 727 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 20:35:00,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:35:00,287 INFO L93 Difference]: Finished difference Result 1761 states and 2304 transitions. [2022-11-02 20:35:00,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 20:35:00,288 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 46 [2022-11-02 20:35:00,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:35:00,294 INFO L225 Difference]: With dead ends: 1761 [2022-11-02 20:35:00,294 INFO L226 Difference]: Without dead ends: 1187 [2022-11-02 20:35:00,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:35:00,297 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 299 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:35:00,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 244 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 20:35:00,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1187 states. [2022-11-02 20:35:00,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1187 to 1175. [2022-11-02 20:35:00,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1175 states, 876 states have (on average 1.221461187214612) internal successors, (1070), 933 states have internal predecessors, (1070), 154 states have call successors, (154), 142 states have call predecessors, (154), 144 states have return successors, (257), 150 states have call predecessors, (257), 154 states have call successors, (257) [2022-11-02 20:35:00,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1175 states to 1175 states and 1481 transitions. [2022-11-02 20:35:00,415 INFO L78 Accepts]: Start accepts. Automaton has 1175 states and 1481 transitions. Word has length 46 [2022-11-02 20:35:00,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:35:00,417 INFO L495 AbstractCegarLoop]: Abstraction has 1175 states and 1481 transitions. [2022-11-02 20:35:00,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 20:35:00,417 INFO L276 IsEmpty]: Start isEmpty. Operand 1175 states and 1481 transitions. [2022-11-02 20:35:00,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-02 20:35:00,420 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:35:00,421 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] [2022-11-02 20:35:00,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:35:00,421 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:35:00,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:35:00,421 INFO L85 PathProgramCache]: Analyzing trace with hash -2099326365, now seen corresponding path program 1 times [2022-11-02 20:35:00,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:35:00,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091151247] [2022-11-02 20:35:00,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:35:00,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:35:00,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:35:00,455 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:35:00,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:35:00,495 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:35:00,496 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 20:35:00,497 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-02 20:35:00,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 20:35:00,502 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:35:00,506 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 20:35:00,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:35:00 BoogieIcfgContainer [2022-11-02 20:35:00,546 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 20:35:00,547 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:35:00,547 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:35:00,547 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:35:00,548 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:34:56" (3/4) ... [2022-11-02 20:35:00,549 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-02 20:35:00,628 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3b3b0b8-d446-4f43-a915-6493168b2bc9/bin/uautomizer-Dbtcem3rbc/witness.graphml [2022-11-02 20:35:00,628 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:35:00,629 INFO L158 Benchmark]: Toolchain (without parser) took 5763.11ms. Allocated memory was 115.3MB in the beginning and 169.9MB in the end (delta: 54.5MB). Free memory was 80.3MB in the beginning and 137.8MB in the end (delta: -57.5MB). Peak memory consumption was 84.3MB. Max. memory is 16.1GB. [2022-11-02 20:35:00,629 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 81.8MB. Free memory was 36.9MB in the beginning and 36.8MB in the end (delta: 40.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:35:00,629 INFO L158 Benchmark]: CACSL2BoogieTranslator took 494.20ms. Allocated memory is still 115.3MB. Free memory was 80.1MB in the beginning and 81.5MB in the end (delta: -1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-02 20:35:00,630 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.67ms. Allocated memory is still 115.3MB. Free memory was 81.5MB in the beginning and 79.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:35:00,631 INFO L158 Benchmark]: Boogie Preprocessor took 51.18ms. Allocated memory is still 115.3MB. Free memory was 79.4MB in the beginning and 77.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:35:00,632 INFO L158 Benchmark]: RCFGBuilder took 604.75ms. Allocated memory is still 115.3MB. Free memory was 77.8MB in the beginning and 59.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-02 20:35:00,632 INFO L158 Benchmark]: TraceAbstraction took 4444.79ms. Allocated memory was 115.3MB in the beginning and 169.9MB in the end (delta: 54.5MB). Free memory was 58.4MB in the beginning and 53.9MB in the end (delta: 4.5MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2022-11-02 20:35:00,633 INFO L158 Benchmark]: Witness Printer took 81.30ms. Allocated memory is still 169.9MB. Free memory was 53.9MB in the beginning and 137.8MB in the end (delta: -83.9MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. [2022-11-02 20:35:00,635 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 81.8MB. Free memory was 36.9MB in the beginning and 36.8MB in the end (delta: 40.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 494.20ms. Allocated memory is still 115.3MB. Free memory was 80.1MB in the beginning and 81.5MB in the end (delta: -1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.67ms. Allocated memory is still 115.3MB. Free memory was 81.5MB in the beginning and 79.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.18ms. Allocated memory is still 115.3MB. Free memory was 79.4MB in the beginning and 77.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 604.75ms. Allocated memory is still 115.3MB. Free memory was 77.8MB in the beginning and 59.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 4444.79ms. Allocated memory was 115.3MB in the beginning and 169.9MB in the end (delta: 54.5MB). Free memory was 58.4MB in the beginning and 53.9MB in the end (delta: 4.5MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Witness Printer took 81.30ms. Allocated memory is still 169.9MB. Free memory was 53.9MB in the beginning and 137.8MB in the end (delta: -83.9MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 449]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L460] int waterLevel = 1; [L461] int methaneLevelCritical = 0; [L627] int pumpRunning = 0; [L628] int systemActive = 1; [L858] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L931] int retValue_acc ; [L932] int tmp ; [L936] FCALL select_helpers() [L937] FCALL select_features() [L938] CALL, EXPR valid_product() [L849] int retValue_acc ; [L852] retValue_acc = 1 [L853] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L938] RET, EXPR valid_product() [L938] tmp = valid_product() [L940] COND TRUE \read(tmp) [L942] FCALL setup() [L943] CALL runTest() [L925] CALL test() [L558] int splverifierCounter ; [L559] int tmp ; [L560] int tmp___0 ; [L561] int tmp___1 ; [L562] int tmp___2 ; [L565] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L567] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L569] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L575] tmp = __VERIFIER_nondet_int() [L577] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L579] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L478] COND TRUE waterLevel < 2 [L479] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L579] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L585] tmp___0 = __VERIFIER_nondet_int() [L587] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L589] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L490] COND FALSE !(\read(methaneLevelCritical)) [L493] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L589] RET changeMethaneLevel() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L595] tmp___2 = __VERIFIER_nondet_int() [L597] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L612] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L634] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L641] COND TRUE \read(systemActive) [L643] CALL processEnvironment() [L689] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L692] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L707] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L663] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L666] COND TRUE ! pumpRunning [L668] CALL, EXPR isHighWaterLevel() [L786] int retValue_acc ; [L787] int tmp ; [L788] int tmp___0 ; [L792] CALL, EXPR isHighWaterSensorDry() [L540] int retValue_acc ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L543] COND FALSE !(waterLevel < 2) [L547] retValue_acc = 0 [L548] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L792] RET, EXPR isHighWaterSensorDry() [L792] tmp = isHighWaterSensorDry() [L794] COND FALSE !(\read(tmp)) [L797] tmp___0 = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L799] retValue_acc = tmp___0 [L800] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L668] RET, EXPR isHighWaterLevel() [L668] tmp = isHighWaterLevel() [L670] COND TRUE \read(tmp) [L672] CALL activatePump() [L717] pumpRunning = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L672] RET activatePump() [L707] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L643] RET processEnvironment() [L649] CALL __utac_acc__Specification1_spec__1() [L420] int tmp ; [L421] int tmp___0 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L425] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L499] int retValue_acc ; [L502] retValue_acc = methaneLevelCritical [L503] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L425] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L425] tmp = isMethaneLevelCritical() [L427] COND TRUE \read(tmp) [L429] CALL, EXPR isPumpRunning() [L741] int retValue_acc ; [L744] retValue_acc = pumpRunning [L745] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L429] RET, EXPR isPumpRunning() [L429] tmp___0 = isPumpRunning() [L431] COND TRUE \read(tmp___0) [L433] CALL __automaton_fail() [L449] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 92 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.3s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 935 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 917 mSDsluCounter, 2041 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1234 mSDsCounter, 271 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1147 IncrementalHoareTripleChecker+Invalid, 1418 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 271 mSolverCounterUnsat, 807 mSDtfsCounter, 1147 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1175occurred in iteration=8, InterpolantAutomatonStates: 55, 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, 8 MinimizatonAttempts, 86 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 331 NumberOfCodeBlocks, 331 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 273 ConstructedInterpolants, 0 QuantifiedInterpolants, 513 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-02 20:35:00,698 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3b3b0b8-d446-4f43-a915-6493168b2bc9/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE