./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec1_product25.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96f67ac9-7691-4231-9780-93fd865227c8/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96f67ac9-7691-4231-9780-93fd865227c8/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96f67ac9-7691-4231-9780-93fd865227c8/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96f67ac9-7691-4231-9780-93fd865227c8/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec1_product25.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96f67ac9-7691-4231-9780-93fd865227c8/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96f67ac9-7691-4231-9780-93fd865227c8/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 680b86ee69d2fa1a591b34672ee94362515e8041606baf59201de5a19c705dd0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 16:00:14,459 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 16:00:14,548 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96f67ac9-7691-4231-9780-93fd865227c8/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 16:00:14,553 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 16:00:14,554 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 16:00:14,580 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 16:00:14,581 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 16:00:14,581 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 16:00:14,582 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 16:00:14,583 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 16:00:14,583 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 16:00:14,584 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 16:00:14,584 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 16:00:14,585 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 16:00:14,586 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 16:00:14,586 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 16:00:14,587 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 16:00:14,587 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 16:00:14,588 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 16:00:14,588 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 16:00:14,589 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 16:00:14,590 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 16:00:14,591 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 16:00:14,591 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 16:00:14,592 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 16:00:14,592 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 16:00:14,593 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 16:00:14,593 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 16:00:14,594 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 16:00:14,594 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 16:00:14,594 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 16:00:14,595 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 16:00:14,595 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 16:00:14,596 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 16:00:14,596 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 16:00:14,596 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 16:00:14,596 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 16:00:14,597 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:00:14,597 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 16:00:14,597 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 16:00:14,598 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 16:00:14,598 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 16:00:14,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 16:00:14,598 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 16:00:14,599 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 16:00:14,599 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 16:00:14,599 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 16:00:14,599 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_96f67ac9-7691-4231-9780-93fd865227c8/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96f67ac9-7691-4231-9780-93fd865227c8/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 680b86ee69d2fa1a591b34672ee94362515e8041606baf59201de5a19c705dd0 [2023-12-02 16:00:14,871 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 16:00:14,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 16:00:14,894 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 16:00:14,896 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 16:00:14,896 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 16:00:14,897 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96f67ac9-7691-4231-9780-93fd865227c8/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/elevator_spec1_product25.cil.c [2023-12-02 16:00:17,807 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 16:00:18,088 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 16:00:18,089 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96f67ac9-7691-4231-9780-93fd865227c8/sv-benchmarks/c/product-lines/elevator_spec1_product25.cil.c [2023-12-02 16:00:18,111 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96f67ac9-7691-4231-9780-93fd865227c8/bin/utaipan-verify-nQ1chXbOIh/data/e62f3fec5/37bcde053eae45d5bf3ff3b62ddf8f0b/FLAG98b505ed0 [2023-12-02 16:00:18,126 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96f67ac9-7691-4231-9780-93fd865227c8/bin/utaipan-verify-nQ1chXbOIh/data/e62f3fec5/37bcde053eae45d5bf3ff3b62ddf8f0b [2023-12-02 16:00:18,129 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 16:00:18,130 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 16:00:18,132 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 16:00:18,132 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 16:00:18,137 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 16:00:18,138 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:00:18" (1/1) ... [2023-12-02 16:00:18,139 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15bfc77b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:00:18, skipping insertion in model container [2023-12-02 16:00:18,139 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:00:18" (1/1) ... [2023-12-02 16:00:18,236 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 16:00:18,481 WARN L240 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_96f67ac9-7691-4231-9780-93fd865227c8/sv-benchmarks/c/product-lines/elevator_spec1_product25.cil.c[13407,13420] [2023-12-02 16:00:18,669 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:00:18,682 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 16:00:18,693 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2023-12-02 16:00:18,694 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [86] [2023-12-02 16:00:18,694 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [452] [2023-12-02 16:00:18,695 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [553] [2023-12-02 16:00:18,695 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [562] [2023-12-02 16:00:18,695 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [916] [2023-12-02 16:00:18,695 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [1099] [2023-12-02 16:00:18,695 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1770] [2023-12-02 16:00:18,696 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1783] [2023-12-02 16:00:18,696 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1903] [2023-12-02 16:00:18,721 WARN L240 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_96f67ac9-7691-4231-9780-93fd865227c8/sv-benchmarks/c/product-lines/elevator_spec1_product25.cil.c[13407,13420] [2023-12-02 16:00:18,779 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:00:18,808 INFO L206 MainTranslator]: Completed translation [2023-12-02 16:00:18,808 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:00:18 WrapperNode [2023-12-02 16:00:18,808 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 16:00:18,809 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 16:00:18,810 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 16:00:18,810 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 16:00:18,817 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:00:18" (1/1) ... [2023-12-02 16:00:18,844 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:00:18" (1/1) ... [2023-12-02 16:00:18,891 INFO L138 Inliner]: procedures = 91, calls = 335, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 834 [2023-12-02 16:00:18,891 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 16:00:18,892 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 16:00:18,892 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 16:00:18,892 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 16:00:18,909 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:00:18" (1/1) ... [2023-12-02 16:00:18,909 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:00:18" (1/1) ... [2023-12-02 16:00:18,916 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:00:18" (1/1) ... [2023-12-02 16:00:18,916 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:00:18" (1/1) ... [2023-12-02 16:00:18,936 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:00:18" (1/1) ... [2023-12-02 16:00:18,963 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:00:18" (1/1) ... [2023-12-02 16:00:18,969 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:00:18" (1/1) ... [2023-12-02 16:00:18,979 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:00:18" (1/1) ... [2023-12-02 16:00:19,002 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 16:00:19,003 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 16:00:19,003 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 16:00:19,003 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 16:00:19,004 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:00:18" (1/1) ... [2023-12-02 16:00:19,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:00:19,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96f67ac9-7691-4231-9780-93fd865227c8/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:00:19,033 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96f67ac9-7691-4231-9780-93fd865227c8/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 16:00:19,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96f67ac9-7691-4231-9780-93fd865227c8/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 16:00:19,065 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2023-12-02 16:00:19,066 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2023-12-02 16:00:19,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 16:00:19,066 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-12-02 16:00:19,066 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-12-02 16:00:19,066 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-12-02 16:00:19,066 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-12-02 16:00:19,067 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-02 16:00:19,067 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-02 16:00:19,067 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-02 16:00:19,067 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-02 16:00:19,067 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-02 16:00:19,068 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-02 16:00:19,068 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-02 16:00:19,068 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-02 16:00:19,068 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-02 16:00:19,068 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-02 16:00:19,068 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-12-02 16:00:19,069 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-12-02 16:00:19,069 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-02 16:00:19,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-02 16:00:19,069 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-02 16:00:19,069 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-02 16:00:19,069 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-02 16:00:19,069 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-02 16:00:19,070 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-02 16:00:19,070 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-02 16:00:19,070 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-02 16:00:19,070 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-02 16:00:19,070 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-02 16:00:19,071 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-02 16:00:19,071 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-02 16:00:19,071 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-02 16:00:19,071 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-02 16:00:19,071 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-02 16:00:19,071 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-02 16:00:19,071 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-02 16:00:19,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 16:00:19,072 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-02 16:00:19,072 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-02 16:00:19,072 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-02 16:00:19,072 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-02 16:00:19,072 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-02 16:00:19,072 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-02 16:00:19,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 16:00:19,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 16:00:19,073 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-02 16:00:19,073 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-02 16:00:19,204 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 16:00:19,207 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 16:00:20,174 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 16:00:20,925 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 16:00:20,926 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 16:00:20,928 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:00:20 BoogieIcfgContainer [2023-12-02 16:00:20,928 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 16:00:20,931 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 16:00:20,931 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 16:00:20,933 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 16:00:20,933 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:00:18" (1/3) ... [2023-12-02 16:00:20,934 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68c5a56c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:00:20, skipping insertion in model container [2023-12-02 16:00:20,934 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:00:18" (2/3) ... [2023-12-02 16:00:20,934 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68c5a56c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:00:20, skipping insertion in model container [2023-12-02 16:00:20,934 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:00:20" (3/3) ... [2023-12-02 16:00:20,936 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product25.cil.c [2023-12-02 16:00:20,952 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 16:00:20,952 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 16:00:21,003 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 16:00:21,009 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@76a161b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 16:00:21,009 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 16:00:21,015 INFO L276 IsEmpty]: Start isEmpty. Operand has 354 states, 239 states have (on average 1.6150627615062763) internal successors, (386), 260 states have internal predecessors, (386), 91 states have call successors, (91), 22 states have call predecessors, (91), 22 states have return successors, (91), 85 states have call predecessors, (91), 91 states have call successors, (91) [2023-12-02 16:00:21,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-02 16:00:21,034 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:00:21,035 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:00:21,036 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:00:21,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:00:21,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1235005004, now seen corresponding path program 1 times [2023-12-02 16:00:21,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:00:21,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408622] [2023-12-02 16:00:21,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:00:21,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:00:21,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:00:21,798 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 16:00:21,798 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:00:21,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408622] [2023-12-02 16:00:21,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408622] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:00:21,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:00:21,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-02 16:00:21,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236080835] [2023-12-02 16:00:21,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:00:21,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 16:00:21,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:00:21,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 16:00:21,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-02 16:00:21,842 INFO L87 Difference]: Start difference. First operand has 354 states, 239 states have (on average 1.6150627615062763) internal successors, (386), 260 states have internal predecessors, (386), 91 states have call successors, (91), 22 states have call predecessors, (91), 22 states have return successors, (91), 85 states have call predecessors, (91), 91 states have call successors, (91) Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 5 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2023-12-02 16:00:24,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:00:24,476 INFO L93 Difference]: Finished difference Result 1177 states and 1929 transitions. [2023-12-02 16:00:24,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 16:00:24,479 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 5 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) Word has length 62 [2023-12-02 16:00:24,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:00:24,503 INFO L225 Difference]: With dead ends: 1177 [2023-12-02 16:00:24,503 INFO L226 Difference]: Without dead ends: 840 [2023-12-02 16:00:24,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2023-12-02 16:00:24,515 INFO L413 NwaCegarLoop]: 376 mSDtfsCounter, 1636 mSDsluCounter, 1272 mSDsCounter, 0 mSdLazyCounter, 2284 mSolverCounterSat, 487 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1699 SdHoareTripleChecker+Valid, 1648 SdHoareTripleChecker+Invalid, 2771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 487 IncrementalHoareTripleChecker+Valid, 2284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-02 16:00:24,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1699 Valid, 1648 Invalid, 2771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [487 Valid, 2284 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-02 16:00:24,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states. [2023-12-02 16:00:24,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 791. [2023-12-02 16:00:24,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 791 states, 558 states have (on average 1.636200716845878) internal successors, (913), 593 states have internal predecessors, (913), 188 states have call successors, (188), 42 states have call predecessors, (188), 44 states have return successors, (189), 180 states have call predecessors, (189), 183 states have call successors, (189) [2023-12-02 16:00:24,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 1290 transitions. [2023-12-02 16:00:24,660 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 1290 transitions. Word has length 62 [2023-12-02 16:00:24,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:00:24,662 INFO L495 AbstractCegarLoop]: Abstraction has 791 states and 1290 transitions. [2023-12-02 16:00:24,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 5 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2023-12-02 16:00:24,662 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 1290 transitions. [2023-12-02 16:00:24,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-02 16:00:24,669 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:00:24,669 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:00:24,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 16:00:24,670 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:00:24,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:00:24,671 INFO L85 PathProgramCache]: Analyzing trace with hash -745833414, now seen corresponding path program 1 times [2023-12-02 16:00:24,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:00:24,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550230405] [2023-12-02 16:00:24,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:00:24,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:00:24,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:00:25,017 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 16:00:25,017 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:00:25,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550230405] [2023-12-02 16:00:25,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550230405] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:00:25,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:00:25,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 16:00:25,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909484884] [2023-12-02 16:00:25,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:00:25,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 16:00:25,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:00:25,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 16:00:25,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 16:00:25,021 INFO L87 Difference]: Start difference. First operand 791 states and 1290 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 16:00:25,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:00:25,212 INFO L93 Difference]: Finished difference Result 1327 states and 2172 transitions. [2023-12-02 16:00:25,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 16:00:25,213 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 67 [2023-12-02 16:00:25,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:00:25,221 INFO L225 Difference]: With dead ends: 1327 [2023-12-02 16:00:25,222 INFO L226 Difference]: Without dead ends: 861 [2023-12-02 16:00:25,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 16:00:25,226 INFO L413 NwaCegarLoop]: 566 mSDtfsCounter, 41 mSDsluCounter, 1629 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 2195 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:00:25,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 2195 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:00:25,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2023-12-02 16:00:25,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 803. [2023-12-02 16:00:25,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 803 states, 567 states have (on average 1.6261022927689595) internal successors, (922), 602 states have internal predecessors, (922), 188 states have call successors, (188), 42 states have call predecessors, (188), 47 states have return successors, (195), 183 states have call predecessors, (195), 183 states have call successors, (195) [2023-12-02 16:00:25,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1305 transitions. [2023-12-02 16:00:25,286 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1305 transitions. Word has length 67 [2023-12-02 16:00:25,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:00:25,287 INFO L495 AbstractCegarLoop]: Abstraction has 803 states and 1305 transitions. [2023-12-02 16:00:25,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 16:00:25,288 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1305 transitions. [2023-12-02 16:00:25,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-02 16:00:25,291 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:00:25,292 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:00:25,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 16:00:25,292 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:00:25,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:00:25,293 INFO L85 PathProgramCache]: Analyzing trace with hash -771356638, now seen corresponding path program 1 times [2023-12-02 16:00:25,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:00:25,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458462220] [2023-12-02 16:00:25,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:00:25,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:00:25,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:00:25,752 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 16:00:25,753 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:00:25,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458462220] [2023-12-02 16:00:25,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458462220] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:00:25,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:00:25,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-02 16:00:25,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727270429] [2023-12-02 16:00:25,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:00:25,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 16:00:25,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:00:25,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 16:00:25,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-02 16:00:25,756 INFO L87 Difference]: Start difference. First operand 803 states and 1305 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 6 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2023-12-02 16:00:27,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:00:27,627 INFO L93 Difference]: Finished difference Result 1822 states and 2958 transitions. [2023-12-02 16:00:27,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 16:00:27,628 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 6 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) Word has length 71 [2023-12-02 16:00:27,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:00:27,639 INFO L225 Difference]: With dead ends: 1822 [2023-12-02 16:00:27,639 INFO L226 Difference]: Without dead ends: 1248 [2023-12-02 16:00:27,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-12-02 16:00:27,644 INFO L413 NwaCegarLoop]: 475 mSDtfsCounter, 1925 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 1880 mSolverCounterSat, 752 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2072 SdHoareTripleChecker+Valid, 1302 SdHoareTripleChecker+Invalid, 2632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 752 IncrementalHoareTripleChecker+Valid, 1880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-02 16:00:27,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2072 Valid, 1302 Invalid, 2632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [752 Valid, 1880 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-02 16:00:27,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1248 states. [2023-12-02 16:00:27,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1248 to 1154. [2023-12-02 16:00:27,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1154 states, 803 states have (on average 1.5815691158156913) internal successors, (1270), 855 states have internal predecessors, (1270), 276 states have call successors, (276), 66 states have call predecessors, (276), 74 states have return successors, (292), 269 states have call predecessors, (292), 271 states have call successors, (292) [2023-12-02 16:00:27,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1154 states to 1154 states and 1838 transitions. [2023-12-02 16:00:27,738 INFO L78 Accepts]: Start accepts. Automaton has 1154 states and 1838 transitions. Word has length 71 [2023-12-02 16:00:27,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:00:27,739 INFO L495 AbstractCegarLoop]: Abstraction has 1154 states and 1838 transitions. [2023-12-02 16:00:27,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 6 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2023-12-02 16:00:27,739 INFO L276 IsEmpty]: Start isEmpty. Operand 1154 states and 1838 transitions. [2023-12-02 16:00:27,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-02 16:00:27,741 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:00:27,742 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:00:27,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 16:00:27,742 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:00:27,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:00:27,742 INFO L85 PathProgramCache]: Analyzing trace with hash 709625856, now seen corresponding path program 1 times [2023-12-02 16:00:27,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:00:27,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457180577] [2023-12-02 16:00:27,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:00:27,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:00:27,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:00:28,011 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 16:00:28,011 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:00:28,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457180577] [2023-12-02 16:00:28,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457180577] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:00:28,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:00:28,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 16:00:28,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76670151] [2023-12-02 16:00:28,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:00:28,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 16:00:28,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:00:28,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 16:00:28,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 16:00:28,014 INFO L87 Difference]: Start difference. First operand 1154 states and 1838 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-02 16:00:28,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:00:28,256 INFO L93 Difference]: Finished difference Result 2223 states and 3599 transitions. [2023-12-02 16:00:28,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 16:00:28,257 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 74 [2023-12-02 16:00:28,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:00:28,267 INFO L225 Difference]: With dead ends: 2223 [2023-12-02 16:00:28,267 INFO L226 Difference]: Without dead ends: 1154 [2023-12-02 16:00:28,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 16:00:28,275 INFO L413 NwaCegarLoop]: 549 mSDtfsCounter, 210 mSDsluCounter, 870 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 1419 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:00:28,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 1419 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:00:28,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1154 states. [2023-12-02 16:00:28,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1154 to 1154. [2023-12-02 16:00:28,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1154 states, 803 states have (on average 1.5417185554171855) internal successors, (1238), 855 states have internal predecessors, (1238), 276 states have call successors, (276), 66 states have call predecessors, (276), 74 states have return successors, (292), 269 states have call predecessors, (292), 271 states have call successors, (292) [2023-12-02 16:00:28,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1154 states to 1154 states and 1806 transitions. [2023-12-02 16:00:28,363 INFO L78 Accepts]: Start accepts. Automaton has 1154 states and 1806 transitions. Word has length 74 [2023-12-02 16:00:28,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:00:28,364 INFO L495 AbstractCegarLoop]: Abstraction has 1154 states and 1806 transitions. [2023-12-02 16:00:28,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-02 16:00:28,364 INFO L276 IsEmpty]: Start isEmpty. Operand 1154 states and 1806 transitions. [2023-12-02 16:00:28,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-02 16:00:28,366 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:00:28,367 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:00:28,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 16:00:28,367 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:00:28,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:00:28,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1344102263, now seen corresponding path program 1 times [2023-12-02 16:00:28,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:00:28,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943626791] [2023-12-02 16:00:28,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:00:28,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:00:28,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:00:28,694 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 16:00:28,695 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:00:28,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943626791] [2023-12-02 16:00:28,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943626791] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:00:28,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:00:28,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-02 16:00:28,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975103875] [2023-12-02 16:00:28,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:00:28,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 16:00:28,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:00:28,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 16:00:28,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-02 16:00:28,697 INFO L87 Difference]: Start difference. First operand 1154 states and 1806 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-02 16:00:30,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:00:30,364 INFO L93 Difference]: Finished difference Result 2210 states and 3477 transitions. [2023-12-02 16:00:30,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 16:00:30,369 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) Word has length 76 [2023-12-02 16:00:30,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:00:30,377 INFO L225 Difference]: With dead ends: 2210 [2023-12-02 16:00:30,378 INFO L226 Difference]: Without dead ends: 1342 [2023-12-02 16:00:30,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-12-02 16:00:30,382 INFO L413 NwaCegarLoop]: 353 mSDtfsCounter, 923 mSDsluCounter, 1158 mSDsCounter, 0 mSdLazyCounter, 2057 mSolverCounterSat, 375 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 993 SdHoareTripleChecker+Valid, 1511 SdHoareTripleChecker+Invalid, 2432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 375 IncrementalHoareTripleChecker+Valid, 2057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-02 16:00:30,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [993 Valid, 1511 Invalid, 2432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [375 Valid, 2057 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-02 16:00:30,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1342 states. [2023-12-02 16:00:30,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342 to 1181. [2023-12-02 16:00:30,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1181 states, 821 states have (on average 1.5347137637028014) internal successors, (1260), 877 states have internal predecessors, (1260), 277 states have call successors, (277), 71 states have call predecessors, (277), 82 states have return successors, (303), 269 states have call predecessors, (303), 272 states have call successors, (303) [2023-12-02 16:00:30,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1181 states to 1181 states and 1840 transitions. [2023-12-02 16:00:30,455 INFO L78 Accepts]: Start accepts. Automaton has 1181 states and 1840 transitions. Word has length 76 [2023-12-02 16:00:30,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:00:30,455 INFO L495 AbstractCegarLoop]: Abstraction has 1181 states and 1840 transitions. [2023-12-02 16:00:30,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-02 16:00:30,456 INFO L276 IsEmpty]: Start isEmpty. Operand 1181 states and 1840 transitions. [2023-12-02 16:00:30,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-02 16:00:30,458 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:00:30,458 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:00:30,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 16:00:30,459 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:00:30,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:00:30,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1781648027, now seen corresponding path program 1 times [2023-12-02 16:00:30,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:00:30,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099898631] [2023-12-02 16:00:30,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:00:30,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:00:30,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:00:30,698 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 16:00:30,699 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:00:30,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099898631] [2023-12-02 16:00:30,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099898631] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:00:30,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:00:30,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 16:00:30,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012274178] [2023-12-02 16:00:30,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:00:30,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 16:00:30,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:00:30,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 16:00:30,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 16:00:30,702 INFO L87 Difference]: Start difference. First operand 1181 states and 1840 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 16:00:31,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:00:31,327 INFO L93 Difference]: Finished difference Result 1253 states and 1953 transitions. [2023-12-02 16:00:31,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 16:00:31,328 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 83 [2023-12-02 16:00:31,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:00:31,339 INFO L225 Difference]: With dead ends: 1253 [2023-12-02 16:00:31,339 INFO L226 Difference]: Without dead ends: 1238 [2023-12-02 16:00:31,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-02 16:00:31,341 INFO L413 NwaCegarLoop]: 505 mSDtfsCounter, 640 mSDsluCounter, 1176 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 1681 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 16:00:31,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [641 Valid, 1681 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 16:00:31,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1238 states. [2023-12-02 16:00:31,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1238 to 1185. [2023-12-02 16:00:31,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1185 states, 825 states have (on average 1.5321212121212122) internal successors, (1264), 881 states have internal predecessors, (1264), 277 states have call successors, (277), 71 states have call predecessors, (277), 82 states have return successors, (303), 269 states have call predecessors, (303), 272 states have call successors, (303) [2023-12-02 16:00:31,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1185 states to 1185 states and 1844 transitions. [2023-12-02 16:00:31,443 INFO L78 Accepts]: Start accepts. Automaton has 1185 states and 1844 transitions. Word has length 83 [2023-12-02 16:00:31,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:00:31,443 INFO L495 AbstractCegarLoop]: Abstraction has 1185 states and 1844 transitions. [2023-12-02 16:00:31,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 16:00:31,444 INFO L276 IsEmpty]: Start isEmpty. Operand 1185 states and 1844 transitions. [2023-12-02 16:00:31,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-02 16:00:31,446 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:00:31,446 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:00:31,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 16:00:31,447 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:00:31,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:00:31,448 INFO L85 PathProgramCache]: Analyzing trace with hash 450821331, now seen corresponding path program 1 times [2023-12-02 16:00:31,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:00:31,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821122411] [2023-12-02 16:00:31,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:00:31,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:00:31,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:00:31,690 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 16:00:31,690 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:00:31,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821122411] [2023-12-02 16:00:31,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821122411] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:00:31,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:00:31,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 16:00:31,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086772177] [2023-12-02 16:00:31,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:00:31,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 16:00:31,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:00:31,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 16:00:31,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 16:00:31,693 INFO L87 Difference]: Start difference. First operand 1185 states and 1844 transitions. Second operand has 5 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-02 16:00:31,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:00:31,880 INFO L93 Difference]: Finished difference Result 1204 states and 1868 transitions. [2023-12-02 16:00:31,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 16:00:31,881 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 1 states have call successors, (16) Word has length 88 [2023-12-02 16:00:31,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:00:31,890 INFO L225 Difference]: With dead ends: 1204 [2023-12-02 16:00:31,890 INFO L226 Difference]: Without dead ends: 1189 [2023-12-02 16:00:31,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-02 16:00:31,892 INFO L413 NwaCegarLoop]: 515 mSDtfsCounter, 30 mSDsluCounter, 1509 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 2024 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:00:31,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 2024 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:00:31,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1189 states. [2023-12-02 16:00:31,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1189 to 1185. [2023-12-02 16:00:31,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1185 states, 825 states have (on average 1.5284848484848486) internal successors, (1261), 881 states have internal predecessors, (1261), 277 states have call successors, (277), 71 states have call predecessors, (277), 82 states have return successors, (303), 269 states have call predecessors, (303), 272 states have call successors, (303) [2023-12-02 16:00:31,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1185 states to 1185 states and 1841 transitions. [2023-12-02 16:00:31,987 INFO L78 Accepts]: Start accepts. Automaton has 1185 states and 1841 transitions. Word has length 88 [2023-12-02 16:00:31,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:00:31,988 INFO L495 AbstractCegarLoop]: Abstraction has 1185 states and 1841 transitions. [2023-12-02 16:00:31,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-02 16:00:31,988 INFO L276 IsEmpty]: Start isEmpty. Operand 1185 states and 1841 transitions. [2023-12-02 16:00:31,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-02 16:00:31,991 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:00:31,991 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:00:31,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-02 16:00:31,991 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:00:31,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:00:31,992 INFO L85 PathProgramCache]: Analyzing trace with hash 641560564, now seen corresponding path program 1 times [2023-12-02 16:00:31,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:00:31,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076726677] [2023-12-02 16:00:31,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:00:31,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:00:32,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:00:33,581 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 16:00:33,581 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:00:33,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076726677] [2023-12-02 16:00:33,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076726677] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:00:33,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:00:33,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-02 16:00:33,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637984187] [2023-12-02 16:00:33,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:00:33,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-02 16:00:33,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:00:33,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-02 16:00:33,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-12-02 16:00:33,585 INFO L87 Difference]: Start difference. First operand 1185 states and 1841 transitions. Second operand has 14 states, 12 states have (on average 4.5) internal successors, (54), 11 states have internal predecessors, (54), 7 states have call successors, (18), 4 states have call predecessors, (18), 5 states have return successors, (17), 8 states have call predecessors, (17), 6 states have call successors, (17) [2023-12-02 16:00:37,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:00:37,287 INFO L93 Difference]: Finished difference Result 1690 states and 2654 transitions. [2023-12-02 16:00:37,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-02 16:00:37,288 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 4.5) internal successors, (54), 11 states have internal predecessors, (54), 7 states have call successors, (18), 4 states have call predecessors, (18), 5 states have return successors, (17), 8 states have call predecessors, (17), 6 states have call successors, (17) Word has length 95 [2023-12-02 16:00:37,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:00:37,300 INFO L225 Difference]: With dead ends: 1690 [2023-12-02 16:00:37,300 INFO L226 Difference]: Without dead ends: 1537 [2023-12-02 16:00:37,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=307, Invalid=1175, Unknown=0, NotChecked=0, Total=1482 [2023-12-02 16:00:37,304 INFO L413 NwaCegarLoop]: 372 mSDtfsCounter, 2577 mSDsluCounter, 2191 mSDsCounter, 0 mSdLazyCounter, 4493 mSolverCounterSat, 993 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2623 SdHoareTripleChecker+Valid, 2563 SdHoareTripleChecker+Invalid, 5486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 993 IncrementalHoareTripleChecker+Valid, 4493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:00:37,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2623 Valid, 2563 Invalid, 5486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [993 Valid, 4493 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-02 16:00:37,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1537 states. [2023-12-02 16:00:37,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1537 to 1412. [2023-12-02 16:00:37,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1412 states, 994 states have (on average 1.529175050301811) internal successors, (1520), 1054 states have internal predecessors, (1520), 319 states have call successors, (319), 84 states have call predecessors, (319), 98 states have return successors, (361), 309 states have call predecessors, (361), 314 states have call successors, (361) [2023-12-02 16:00:37,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1412 states to 1412 states and 2200 transitions. [2023-12-02 16:00:37,435 INFO L78 Accepts]: Start accepts. Automaton has 1412 states and 2200 transitions. Word has length 95 [2023-12-02 16:00:37,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:00:37,436 INFO L495 AbstractCegarLoop]: Abstraction has 1412 states and 2200 transitions. [2023-12-02 16:00:37,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 4.5) internal successors, (54), 11 states have internal predecessors, (54), 7 states have call successors, (18), 4 states have call predecessors, (18), 5 states have return successors, (17), 8 states have call predecessors, (17), 6 states have call successors, (17) [2023-12-02 16:00:37,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1412 states and 2200 transitions. [2023-12-02 16:00:37,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-02 16:00:37,438 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:00:37,438 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:00:37,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-02 16:00:37,439 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:00:37,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:00:37,439 INFO L85 PathProgramCache]: Analyzing trace with hash -266221704, now seen corresponding path program 1 times [2023-12-02 16:00:37,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:00:37,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123143632] [2023-12-02 16:00:37,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:00:37,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:00:37,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:00:37,601 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 16:00:37,601 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:00:37,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123143632] [2023-12-02 16:00:37,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123143632] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:00:37,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:00:37,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 16:00:37,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491238077] [2023-12-02 16:00:37,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:00:37,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 16:00:37,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:00:37,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 16:00:37,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 16:00:37,604 INFO L87 Difference]: Start difference. First operand 1412 states and 2200 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 4 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-02 16:00:39,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:00:39,152 INFO L93 Difference]: Finished difference Result 4619 states and 7322 transitions. [2023-12-02 16:00:39,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 16:00:39,153 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 4 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) Word has length 93 [2023-12-02 16:00:39,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:00:39,174 INFO L225 Difference]: With dead ends: 4619 [2023-12-02 16:00:39,174 INFO L226 Difference]: Without dead ends: 3238 [2023-12-02 16:00:39,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-02 16:00:39,183 INFO L413 NwaCegarLoop]: 334 mSDtfsCounter, 1219 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 1561 mSolverCounterSat, 429 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1275 SdHoareTripleChecker+Valid, 895 SdHoareTripleChecker+Invalid, 1990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 429 IncrementalHoareTripleChecker+Valid, 1561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-02 16:00:39,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1275 Valid, 895 Invalid, 1990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [429 Valid, 1561 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-02 16:00:39,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3238 states. [2023-12-02 16:00:39,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3238 to 2888. [2023-12-02 16:00:39,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2888 states, 2087 states have (on average 1.5409678965021563) internal successors, (3216), 2208 states have internal predecessors, (3216), 601 states have call successors, (601), 167 states have call predecessors, (601), 199 states have return successors, (718), 566 states have call predecessors, (718), 596 states have call successors, (718) [2023-12-02 16:00:39,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2888 states to 2888 states and 4535 transitions. [2023-12-02 16:00:39,517 INFO L78 Accepts]: Start accepts. Automaton has 2888 states and 4535 transitions. Word has length 93 [2023-12-02 16:00:39,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:00:39,517 INFO L495 AbstractCegarLoop]: Abstraction has 2888 states and 4535 transitions. [2023-12-02 16:00:39,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 4 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-02 16:00:39,518 INFO L276 IsEmpty]: Start isEmpty. Operand 2888 states and 4535 transitions. [2023-12-02 16:00:39,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-02 16:00:39,521 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:00:39,521 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:00:39,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-02 16:00:39,521 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:00:39,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:00:39,522 INFO L85 PathProgramCache]: Analyzing trace with hash 722040051, now seen corresponding path program 1 times [2023-12-02 16:00:39,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:00:39,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442910239] [2023-12-02 16:00:39,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:00:39,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:00:39,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:00:40,695 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 16:00:40,695 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:00:40,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442910239] [2023-12-02 16:00:40,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442910239] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:00:40,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8564393] [2023-12-02 16:00:40,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:00:40,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:00:40,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96f67ac9-7691-4231-9780-93fd865227c8/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:00:40,700 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96f67ac9-7691-4231-9780-93fd865227c8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:00:40,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96f67ac9-7691-4231-9780-93fd865227c8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 16:00:41,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:00:41,093 INFO L262 TraceCheckSpWp]: Trace formula consists of 1817 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 16:00:41,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:00:41,165 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 16:00:41,166 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:00:41,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8564393] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:00:41,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 16:00:41,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [15] total 17 [2023-12-02 16:00:41,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152845250] [2023-12-02 16:00:41,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:00:41,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 16:00:41,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:00:41,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 16:00:41,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2023-12-02 16:00:41,168 INFO L87 Difference]: Start difference. First operand 2888 states and 4535 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-02 16:00:41,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:00:41,511 INFO L93 Difference]: Finished difference Result 3024 states and 4747 transitions. [2023-12-02 16:00:41,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 16:00:41,512 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) Word has length 101 [2023-12-02 16:00:41,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:00:41,526 INFO L225 Difference]: With dead ends: 3024 [2023-12-02 16:00:41,526 INFO L226 Difference]: Without dead ends: 3009 [2023-12-02 16:00:41,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2023-12-02 16:00:41,528 INFO L413 NwaCegarLoop]: 546 mSDtfsCounter, 44 mSDsluCounter, 1045 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 1591 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:00:41,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 1591 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:00:41,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3009 states. [2023-12-02 16:00:41,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3009 to 2898. [2023-12-02 16:00:41,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2898 states, 2097 states have (on average 1.5369575584167858) internal successors, (3223), 2218 states have internal predecessors, (3223), 601 states have call successors, (601), 167 states have call predecessors, (601), 199 states have return successors, (718), 566 states have call predecessors, (718), 596 states have call successors, (718) [2023-12-02 16:00:41,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2898 states to 2898 states and 4542 transitions. [2023-12-02 16:00:41,715 INFO L78 Accepts]: Start accepts. Automaton has 2898 states and 4542 transitions. Word has length 101 [2023-12-02 16:00:41,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:00:41,715 INFO L495 AbstractCegarLoop]: Abstraction has 2898 states and 4542 transitions. [2023-12-02 16:00:41,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-02 16:00:41,716 INFO L276 IsEmpty]: Start isEmpty. Operand 2898 states and 4542 transitions. [2023-12-02 16:00:41,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-02 16:00:41,734 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:00:41,735 INFO L195 NwaCegarLoop]: trace histogram [7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:00:41,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96f67ac9-7691-4231-9780-93fd865227c8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 16:00:41,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96f67ac9-7691-4231-9780-93fd865227c8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-02 16:00:41,936 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:00:41,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:00:41,936 INFO L85 PathProgramCache]: Analyzing trace with hash 238046880, now seen corresponding path program 1 times [2023-12-02 16:00:41,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:00:41,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008192563] [2023-12-02 16:00:41,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:00:41,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:00:41,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:00:42,695 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-02 16:00:42,695 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:00:42,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008192563] [2023-12-02 16:00:42,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008192563] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:00:42,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548668704] [2023-12-02 16:00:42,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:00:42,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:00:42,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96f67ac9-7691-4231-9780-93fd865227c8/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:00:42,697 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96f67ac9-7691-4231-9780-93fd865227c8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:00:42,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96f67ac9-7691-4231-9780-93fd865227c8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 16:00:42,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:00:43,005 INFO L262 TraceCheckSpWp]: Trace formula consists of 1839 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-02 16:00:43,013 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:00:43,448 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 35 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 16:00:43,448 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:00:51,551 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-02 16:00:51,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548668704] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:00:51,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [390979096] [2023-12-02 16:00:51,575 INFO L159 IcfgInterpreter]: Started Sifa with 98 locations of interest [2023-12-02 16:00:51,575 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:00:51,578 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:00:51,584 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:00:51,584 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:01:10,401 INFO L197 IcfgInterpreter]: Interpreting procedure cleanup with input of size 580 for LOIs [2023-12-02 16:02:00,872 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 580 for LOIs [2023-12-02 16:02:34,791 INFO L197 IcfgInterpreter]: Interpreting procedure stopRequestedInDirection with input of size 441 for LOIs [2023-12-02 16:02:43,669 INFO L197 IcfgInterpreter]: Interpreting procedure isFloorCalling with input of size 449 for LOIs [2023-12-02 16:02:44,399 INFO L197 IcfgInterpreter]: Interpreting procedure bigMacCall with input of size 587 for LOIs [2023-12-02 16:02:59,182 INFO L197 IcfgInterpreter]: Interpreting procedure isBlocked with input of size 469 for LOIs [2023-12-02 16:03:00,682 INFO L197 IcfgInterpreter]: Interpreting procedure continueInDirection with input of size 449 for LOIs [2023-12-02 16:03:05,232 INFO L197 IcfgInterpreter]: Interpreting procedure isTopFloor with input of size 451 for LOIs [2023-12-02 16:03:06,546 INFO L197 IcfgInterpreter]: Interpreting procedure angelinaCall with input of size 550 for LOIs [2023-12-02 16:03:18,746 INFO L197 IcfgInterpreter]: Interpreting procedure initPersonOnFloor with input of size 642 for LOIs [2023-12-02 16:03:24,054 INFO L197 IcfgInterpreter]: Interpreting procedure getOrigin with input of size 519 for LOIs [2023-12-02 16:03:25,973 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:03:35,200 WARN L293 SmtUtils]: Spent 5.13s on a formula simplification that was a NOOP. DAG size: 587 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:03:47,372 WARN L293 SmtUtils]: Spent 7.24s on a formula simplification. DAG size of input: 563 DAG size of output: 529 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:03:52,623 WARN L293 SmtUtils]: Spent 5.02s on a formula simplification that was a NOOP. DAG size: 589 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:04:12,028 WARN L293 SmtUtils]: Spent 13.85s on a formula simplification. DAG size of input: 642 DAG size of output: 602 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:05:03,897 WARN L293 SmtUtils]: Spent 5.06s on a formula simplification that was a NOOP. DAG size: 587 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:05:16,505 WARN L293 SmtUtils]: Spent 5.59s on a formula simplification. DAG size of input: 451 DAG size of output: 437 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:05:22,493 WARN L293 SmtUtils]: Spent 5.55s on a formula simplification. DAG size of input: 463 DAG size of output: 443 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:05:46,362 WARN L293 SmtUtils]: Spent 5.33s on a formula simplification. DAG size of input: 599 DAG size of output: 596 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:05:51,953 WARN L293 SmtUtils]: Spent 5.02s on a formula simplification. DAG size of input: 599 DAG size of output: 596 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:06:19,592 WARN L293 SmtUtils]: Spent 10.88s on a formula simplification. DAG size of input: 641 DAG size of output: 634 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:06:30,846 WARN L293 SmtUtils]: Spent 10.55s on a formula simplification. DAG size of input: 650 DAG size of output: 643 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:06:42,251 WARN L293 SmtUtils]: Spent 10.60s on a formula simplification. DAG size of input: 652 DAG size of output: 645 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:06:53,823 WARN L293 SmtUtils]: Spent 10.76s on a formula simplification. DAG size of input: 654 DAG size of output: 647 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:07:05,424 WARN L293 SmtUtils]: Spent 10.73s on a formula simplification. DAG size of input: 656 DAG size of output: 649 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:07:17,040 WARN L293 SmtUtils]: Spent 10.71s on a formula simplification. DAG size of input: 658 DAG size of output: 628 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:07:29,499 WARN L293 SmtUtils]: Spent 11.49s on a formula simplification. DAG size of input: 660 DAG size of output: 630 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:07:40,579 WARN L293 SmtUtils]: Spent 10.28s on a formula simplification. DAG size of input: 656 DAG size of output: 626 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:07:48,628 WARN L293 SmtUtils]: Spent 7.35s on a formula simplification. DAG size of input: 505 DAG size of output: 478 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:07:57,144 WARN L293 SmtUtils]: Spent 7.72s on a formula simplification. DAG size of input: 507 DAG size of output: 480 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:08:05,018 WARN L293 SmtUtils]: Spent 7.03s on a formula simplification. DAG size of input: 509 DAG size of output: 482 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:08:12,673 WARN L293 SmtUtils]: Spent 6.97s on a formula simplification. DAG size of input: 469 DAG size of output: 442 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:08:20,688 WARN L293 SmtUtils]: Spent 7.27s on a formula simplification. DAG size of input: 473 DAG size of output: 446 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:08:28,713 WARN L293 SmtUtils]: Spent 7.24s on a formula simplification. DAG size of input: 511 DAG size of output: 484 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:08:36,816 WARN L293 SmtUtils]: Spent 7.28s on a formula simplification. DAG size of input: 511 DAG size of output: 484 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:08:45,113 WARN L293 SmtUtils]: Spent 7.44s on a formula simplification. DAG size of input: 514 DAG size of output: 487 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:08:53,158 WARN L293 SmtUtils]: Spent 7.20s on a formula simplification. DAG size of input: 517 DAG size of output: 490 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:09:01,516 WARN L293 SmtUtils]: Spent 7.48s on a formula simplification. DAG size of input: 515 DAG size of output: 488 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:09:09,790 WARN L293 SmtUtils]: Spent 7.34s on a formula simplification. DAG size of input: 520 DAG size of output: 490 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:09:18,031 WARN L293 SmtUtils]: Spent 7.31s on a formula simplification. DAG size of input: 520 DAG size of output: 490 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:09:18,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [390979096] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:09:18,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:09:18,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [58] imperfect sequences [11, 9, 11] total 77 [2023-12-02 16:09:18,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773209772] [2023-12-02 16:09:18,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:09:18,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2023-12-02 16:09:18,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:09:18,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2023-12-02 16:09:18,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=542, Invalid=5310, Unknown=0, NotChecked=0, Total=5852 [2023-12-02 16:09:18,042 INFO L87 Difference]: Start difference. First operand 2898 states and 4542 transitions. Second operand has 58 states, 47 states have (on average 1.3829787234042554) internal successors, (65), 37 states have internal predecessors, (65), 17 states have call successors, (21), 11 states have call predecessors, (21), 11 states have return successors, (20), 17 states have call predecessors, (20), 17 states have call successors, (20) [2023-12-02 16:09:29,080 WARN L293 SmtUtils]: Spent 5.32s on a formula simplification. DAG size of input: 609 DAG size of output: 595 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:10:29,324 WARN L293 SmtUtils]: Spent 5.11s on a formula simplification. DAG size of input: 645 DAG size of output: 614 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:11:26,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:11:26,219 INFO L93 Difference]: Finished difference Result 6295 states and 9884 transitions. [2023-12-02 16:11:26,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2023-12-02 16:11:26,221 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 47 states have (on average 1.3829787234042554) internal successors, (65), 37 states have internal predecessors, (65), 17 states have call successors, (21), 11 states have call predecessors, (21), 11 states have return successors, (20), 17 states have call predecessors, (20), 17 states have call successors, (20) Word has length 115 [2023-12-02 16:11:26,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:11:26,235 INFO L225 Difference]: With dead ends: 6295 [2023-12-02 16:11:26,235 INFO L226 Difference]: Without dead ends: 3422 [2023-12-02 16:11:26,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2339 ImplicationChecksByTransitivity, 404.1s TimeCoverageRelationStatistics Valid=649, Invalid=7007, Unknown=0, NotChecked=0, Total=7656 [2023-12-02 16:11:26,248 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 382 mSDsluCounter, 7763 mSDsCounter, 0 mSdLazyCounter, 16789 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 72.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 8240 SdHoareTripleChecker+Invalid, 16852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 16789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 75.2s IncrementalHoareTripleChecker+Time [2023-12-02 16:11:26,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 8240 Invalid, 16852 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [63 Valid, 16789 Invalid, 0 Unknown, 0 Unchecked, 75.2s Time] [2023-12-02 16:11:26,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3422 states. [2023-12-02 16:11:26,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3422 to 3320. [2023-12-02 16:11:26,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3320 states, 2431 states have (on average 1.5269436445907034) internal successors, (3712), 2556 states have internal predecessors, (3712), 660 states have call successors, (660), 192 states have call predecessors, (660), 228 states have return successors, (791), 625 states have call predecessors, (791), 655 states have call successors, (791) [2023-12-02 16:11:26,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3320 states to 3320 states and 5163 transitions. [2023-12-02 16:11:26,942 INFO L78 Accepts]: Start accepts. Automaton has 3320 states and 5163 transitions. Word has length 115 [2023-12-02 16:11:26,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:11:26,943 INFO L495 AbstractCegarLoop]: Abstraction has 3320 states and 5163 transitions. [2023-12-02 16:11:26,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 47 states have (on average 1.3829787234042554) internal successors, (65), 37 states have internal predecessors, (65), 17 states have call successors, (21), 11 states have call predecessors, (21), 11 states have return successors, (20), 17 states have call predecessors, (20), 17 states have call successors, (20) [2023-12-02 16:11:26,943 INFO L276 IsEmpty]: Start isEmpty. Operand 3320 states and 5163 transitions. [2023-12-02 16:11:26,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-02 16:11:26,949 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:11:26,949 INFO L195 NwaCegarLoop]: trace histogram [7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:11:26,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96f67ac9-7691-4231-9780-93fd865227c8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-02 16:11:27,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96f67ac9-7691-4231-9780-93fd865227c8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-02 16:11:27,149 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:11:27,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:11:27,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1678529631, now seen corresponding path program 1 times [2023-12-02 16:11:27,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:11:27,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956435147] [2023-12-02 16:11:27,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:11:27,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:11:27,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:11:27,680 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-02 16:11:27,681 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:11:27,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956435147] [2023-12-02 16:11:27,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956435147] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:11:27,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018190264] [2023-12-02 16:11:27,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:11:27,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:11:27,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96f67ac9-7691-4231-9780-93fd865227c8/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:11:27,682 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96f67ac9-7691-4231-9780-93fd865227c8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:11:27,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96f67ac9-7691-4231-9780-93fd865227c8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 16:11:27,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:11:28,001 INFO L262 TraceCheckSpWp]: Trace formula consists of 1842 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 16:11:28,006 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:11:28,056 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-02 16:11:28,056 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:11:28,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018190264] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:11:28,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 16:11:28,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2023-12-02 16:11:28,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733655048] [2023-12-02 16:11:28,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:11:28,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:11:28,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:11:28,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:11:28,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-02 16:11:28,058 INFO L87 Difference]: Start difference. First operand 3320 states and 5163 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-02 16:11:28,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:11:28,920 INFO L93 Difference]: Finished difference Result 9004 states and 14167 transitions. [2023-12-02 16:11:28,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:11:28,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 116 [2023-12-02 16:11:28,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:11:28,948 INFO L225 Difference]: With dead ends: 9004 [2023-12-02 16:11:28,948 INFO L226 Difference]: Without dead ends: 6140 [2023-12-02 16:11:28,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-02 16:11:28,959 INFO L413 NwaCegarLoop]: 977 mSDtfsCounter, 475 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 1468 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:11:28,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 1468 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:11:28,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6140 states. [2023-12-02 16:11:29,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6140 to 6137. [2023-12-02 16:11:29,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6137 states, 4482 states have (on average 1.5285586791610888) internal successors, (6851), 4724 states have internal predecessors, (6851), 1231 states have call successors, (1231), 352 states have call predecessors, (1231), 423 states have return successors, (1526), 1168 states have call predecessors, (1526), 1226 states have call successors, (1526) [2023-12-02 16:11:29,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6137 states to 6137 states and 9608 transitions. [2023-12-02 16:11:29,798 INFO L78 Accepts]: Start accepts. Automaton has 6137 states and 9608 transitions. Word has length 116 [2023-12-02 16:11:29,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:11:29,799 INFO L495 AbstractCegarLoop]: Abstraction has 6137 states and 9608 transitions. [2023-12-02 16:11:29,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-02 16:11:29,799 INFO L276 IsEmpty]: Start isEmpty. Operand 6137 states and 9608 transitions. [2023-12-02 16:11:29,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-02 16:11:29,804 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:11:29,804 INFO L195 NwaCegarLoop]: trace histogram [7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:11:29,811 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96f67ac9-7691-4231-9780-93fd865227c8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 16:11:30,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96f67ac9-7691-4231-9780-93fd865227c8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-02 16:11:30,005 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:11:30,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:11:30,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1311588897, now seen corresponding path program 1 times [2023-12-02 16:11:30,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:11:30,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430587191] [2023-12-02 16:11:30,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:11:30,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:11:30,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:11:30,636 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-02 16:11:30,637 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:11:30,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430587191] [2023-12-02 16:11:30,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430587191] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:11:30,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940414969] [2023-12-02 16:11:30,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:11:30,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:11:30,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96f67ac9-7691-4231-9780-93fd865227c8/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:11:30,638 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96f67ac9-7691-4231-9780-93fd865227c8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:11:30,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96f67ac9-7691-4231-9780-93fd865227c8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 16:11:30,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:11:30,952 INFO L262 TraceCheckSpWp]: Trace formula consists of 1842 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-02 16:11:30,957 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:11:31,264 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 35 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 16:11:31,264 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:11:37,978 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-02 16:11:37,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [940414969] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:11:37,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1978227059] [2023-12-02 16:11:37,983 INFO L159 IcfgInterpreter]: Started Sifa with 99 locations of interest [2023-12-02 16:11:37,983 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:11:37,984 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:11:37,984 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:11:37,984 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:11:54,957 INFO L197 IcfgInterpreter]: Interpreting procedure cleanup with input of size 580 for LOIs [2023-12-02 16:12:43,694 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 580 for LOIs [2023-12-02 16:13:19,812 INFO L197 IcfgInterpreter]: Interpreting procedure stopRequestedInDirection with input of size 441 for LOIs [2023-12-02 16:13:27,977 INFO L197 IcfgInterpreter]: Interpreting procedure isFloorCalling with input of size 61 for LOIs [2023-12-02 16:13:28,014 INFO L197 IcfgInterpreter]: Interpreting procedure bigMacCall with input of size 587 for LOIs [2023-12-02 16:13:40,283 INFO L197 IcfgInterpreter]: Interpreting procedure isBlocked with input of size 457 for LOIs [2023-12-02 16:13:41,644 INFO L197 IcfgInterpreter]: Interpreting procedure continueInDirection with input of size 449 for LOIs [2023-12-02 16:13:46,005 INFO L197 IcfgInterpreter]: Interpreting procedure isTopFloor with input of size 451 for LOIs [2023-12-02 16:13:47,273 INFO L197 IcfgInterpreter]: Interpreting procedure angelinaCall with input of size 550 for LOIs [2023-12-02 16:13:58,860 INFO L197 IcfgInterpreter]: Interpreting procedure initPersonOnFloor with input of size 642 for LOIs [2023-12-02 16:14:03,991 INFO L197 IcfgInterpreter]: Interpreting procedure getOrigin with input of size 519 for LOIs [2023-12-02 16:14:05,552 INFO L180 IcfgInterpreter]: Interpretation finished