./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec9_product09.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_75706e6d-2e54-41c3-84bf-f6830b1e4955/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75706e6d-2e54-41c3-84bf-f6830b1e4955/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75706e6d-2e54-41c3-84bf-f6830b1e4955/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75706e6d-2e54-41c3-84bf-f6830b1e4955/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec9_product09.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75706e6d-2e54-41c3-84bf-f6830b1e4955/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75706e6d-2e54-41c3-84bf-f6830b1e4955/bin/uautomizer-verify-uTZkv6EMXl --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cc5b9f71a5434758faa1f6f3febe6f12c158e9feff610b938ef9d4658acd21ff --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:12:24,292 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:12:24,459 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75706e6d-2e54-41c3-84bf-f6830b1e4955/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:12:24,468 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:12:24,468 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:12:24,516 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:12:24,517 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:12:24,517 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:12:24,519 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:12:24,525 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:12:24,527 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:12:24,528 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:12:24,528 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:12:24,530 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:12:24,531 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:12:24,532 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:12:24,532 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:12:24,533 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:12:24,533 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:12:24,534 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:12:24,534 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:12:24,535 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:12:24,536 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:12:24,536 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:12:24,537 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:12:24,538 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:12:24,539 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:12:24,539 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:12:24,540 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:12:24,540 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:12:24,542 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:12:24,542 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:12:24,543 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:12:24,543 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:12:24,543 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:12:24,544 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:12:24,544 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:12:24,544 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:12:24,544 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:12:24,545 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_75706e6d-2e54-41c3-84bf-f6830b1e4955/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75706e6d-2e54-41c3-84bf-f6830b1e4955/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc5b9f71a5434758faa1f6f3febe6f12c158e9feff610b938ef9d4658acd21ff [2023-11-12 02:12:24,946 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:12:24,979 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:12:24,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:12:24,984 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:12:24,984 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:12:24,985 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75706e6d-2e54-41c3-84bf-f6830b1e4955/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/product-lines/elevator_spec9_product09.cil.c [2023-11-12 02:12:28,221 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:12:28,665 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:12:28,666 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75706e6d-2e54-41c3-84bf-f6830b1e4955/sv-benchmarks/c/product-lines/elevator_spec9_product09.cil.c [2023-11-12 02:12:28,698 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75706e6d-2e54-41c3-84bf-f6830b1e4955/bin/uautomizer-verify-uTZkv6EMXl/data/2bbc69746/ae4e13e7f9e14f12b7fe89b0f7d8400c/FLAGc3c29ffb8 [2023-11-12 02:12:28,826 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75706e6d-2e54-41c3-84bf-f6830b1e4955/bin/uautomizer-verify-uTZkv6EMXl/data/2bbc69746/ae4e13e7f9e14f12b7fe89b0f7d8400c [2023-11-12 02:12:28,833 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:12:28,834 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:12:28,838 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:12:28,839 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:12:28,845 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:12:28,849 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:12:28" (1/1) ... [2023-11-12 02:12:28,850 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@400d63c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:28, skipping insertion in model container [2023-11-12 02:12:28,850 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:12:28" (1/1) ... [2023-11-12 02:12:28,957 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:12:29,529 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_75706e6d-2e54-41c3-84bf-f6830b1e4955/sv-benchmarks/c/product-lines/elevator_spec9_product09.cil.c[70349,70362] [2023-11-12 02:12:29,539 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:12:29,557 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:12:29,569 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [48] [2023-11-12 02:12:29,571 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [62] [2023-11-12 02:12:29,572 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [730] [2023-11-12 02:12:29,572 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1092] [2023-11-12 02:12:29,572 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2539] [2023-11-12 02:12:29,573 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification9_spec.i","") [2905] [2023-11-12 02:12:29,574 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [3065] [2023-11-12 02:12:29,574 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [3184] [2023-11-12 02:12:29,575 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [3275] [2023-11-12 02:12:29,576 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3310] [2023-11-12 02:12:29,734 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_75706e6d-2e54-41c3-84bf-f6830b1e4955/sv-benchmarks/c/product-lines/elevator_spec9_product09.cil.c[70349,70362] [2023-11-12 02:12:29,734 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:12:29,768 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:12:29,769 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:29 WrapperNode [2023-11-12 02:12:29,769 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:12:29,770 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:12:29,770 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:12:29,770 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:12:29,776 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:29" (1/1) ... [2023-11-12 02:12:29,823 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:29" (1/1) ... [2023-11-12 02:12:29,890 INFO L138 Inliner]: procedures = 89, calls = 327, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 770 [2023-11-12 02:12:29,890 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:12:29,891 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:12:29,891 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:12:29,892 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:12:29,930 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:29" (1/1) ... [2023-11-12 02:12:29,930 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:29" (1/1) ... [2023-11-12 02:12:29,938 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:29" (1/1) ... [2023-11-12 02:12:29,938 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:29" (1/1) ... [2023-11-12 02:12:30,007 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:29" (1/1) ... [2023-11-12 02:12:30,040 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:29" (1/1) ... [2023-11-12 02:12:30,045 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:29" (1/1) ... [2023-11-12 02:12:30,051 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:29" (1/1) ... [2023-11-12 02:12:30,079 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:12:30,080 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:12:30,081 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:12:30,081 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:12:30,082 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:29" (1/1) ... [2023-11-12 02:12:30,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:12:30,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75706e6d-2e54-41c3-84bf-f6830b1e4955/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:12:30,128 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75706e6d-2e54-41c3-84bf-f6830b1e4955/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:12:30,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75706e6d-2e54-41c3-84bf-f6830b1e4955/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:12:30,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:12:30,170 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-11-12 02:12:30,171 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-11-12 02:12:30,171 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-11-12 02:12:30,171 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-11-12 02:12:30,172 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-11-12 02:12:30,172 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-11-12 02:12:30,172 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-11-12 02:12:30,172 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-11-12 02:12:30,172 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-12 02:12:30,172 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-12 02:12:30,173 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-12 02:12:30,173 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-12 02:12:30,173 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-11-12 02:12:30,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-11-12 02:12:30,174 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-11-12 02:12:30,174 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-11-12 02:12:30,174 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-11-12 02:12:30,175 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-11-12 02:12:30,175 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-11-12 02:12:30,176 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-11-12 02:12:30,176 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-11-12 02:12:30,177 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-11-12 02:12:30,177 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-11-12 02:12:30,177 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-11-12 02:12:30,178 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-11-12 02:12:30,178 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-11-12 02:12:30,178 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-11-12 02:12:30,178 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-11-12 02:12:30,178 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-11-12 02:12:30,179 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-11-12 02:12:30,179 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2023-11-12 02:12:30,179 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2023-11-12 02:12:30,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:12:30,179 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-11-12 02:12:30,179 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-11-12 02:12:30,179 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-11-12 02:12:30,180 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-11-12 02:12:30,180 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-11-12 02:12:30,180 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-11-12 02:12:30,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:12:30,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:12:30,180 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-11-12 02:12:30,181 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-11-12 02:12:30,349 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:12:30,352 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:12:31,554 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:12:31,580 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:12:31,581 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:12:31,585 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:12:31 BoogieIcfgContainer [2023-11-12 02:12:31,585 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:12:31,590 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:12:31,590 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:12:31,593 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:12:31,594 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:12:28" (1/3) ... [2023-11-12 02:12:31,595 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54f3011a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:12:31, skipping insertion in model container [2023-11-12 02:12:31,595 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:29" (2/3) ... [2023-11-12 02:12:31,597 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54f3011a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:12:31, skipping insertion in model container [2023-11-12 02:12:31,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:12:31" (3/3) ... [2023-11-12 02:12:31,598 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec9_product09.cil.c [2023-11-12 02:12:31,621 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:12:31,622 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:12:31,713 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:12:31,720 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@135ef349, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:12:31,721 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:12:31,729 INFO L276 IsEmpty]: Start isEmpty. Operand has 517 states, 412 states have (on average 1.720873786407767) internal successors, (709), 433 states have internal predecessors, (709), 83 states have call successors, (83), 20 states have call predecessors, (83), 20 states have return successors, (83), 77 states have call predecessors, (83), 83 states have call successors, (83) [2023-11-12 02:12:31,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-12 02:12:31,758 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:12:31,759 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:12:31,759 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:12:31,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:12:31,765 INFO L85 PathProgramCache]: Analyzing trace with hash 174502393, now seen corresponding path program 1 times [2023-11-12 02:12:31,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:12:31,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473878435] [2023-11-12 02:12:31,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:12:31,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:12:32,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:32,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:12:32,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:32,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:12:32,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:32,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-12 02:12:32,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:33,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-12 02:12:33,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:33,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:12:33,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:33,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:12:33,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:33,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-12 02:12:33,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:33,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-12 02:12:33,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:33,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-12 02:12:33,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:33,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:12:33,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:12:33,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473878435] [2023-11-12 02:12:33,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473878435] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:12:33,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:12:33,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-12 02:12:33,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589437170] [2023-11-12 02:12:33,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:12:33,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-12 02:12:33,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:12:33,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-12 02:12:33,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:12:33,942 INFO L87 Difference]: Start difference. First operand has 517 states, 412 states have (on average 1.720873786407767) internal successors, (709), 433 states have internal predecessors, (709), 83 states have call successors, (83), 20 states have call predecessors, (83), 20 states have return successors, (83), 77 states have call predecessors, (83), 83 states have call successors, (83) Second operand has 10 states, 10 states have (on average 5.7) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-12 02:12:47,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:12:47,187 INFO L93 Difference]: Finished difference Result 1281 states and 2220 transitions. [2023-11-12 02:12:47,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-12 02:12:47,193 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 76 [2023-11-12 02:12:47,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:12:47,235 INFO L225 Difference]: With dead ends: 1281 [2023-11-12 02:12:47,236 INFO L226 Difference]: Without dead ends: 776 [2023-11-12 02:12:47,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2023-11-12 02:12:47,259 INFO L413 NwaCegarLoop]: 470 mSDtfsCounter, 981 mSDsluCounter, 2731 mSDsCounter, 0 mSdLazyCounter, 5194 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1042 SdHoareTripleChecker+Valid, 3201 SdHoareTripleChecker+Invalid, 5411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 5194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:12:47,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1042 Valid, 3201 Invalid, 5411 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [217 Valid, 5194 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time] [2023-11-12 02:12:47,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2023-11-12 02:12:47,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 513. [2023-11-12 02:12:47,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 409 states have (on average 1.7114914425427872) internal successors, (700), 428 states have internal predecessors, (700), 83 states have call successors, (83), 20 states have call predecessors, (83), 20 states have return successors, (80), 77 states have call predecessors, (80), 78 states have call successors, (80) [2023-11-12 02:12:47,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 863 transitions. [2023-11-12 02:12:47,612 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 863 transitions. Word has length 76 [2023-11-12 02:12:47,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:12:47,613 INFO L495 AbstractCegarLoop]: Abstraction has 513 states and 863 transitions. [2023-11-12 02:12:47,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-12 02:12:47,614 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 863 transitions. [2023-11-12 02:12:47,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-12 02:12:47,626 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:12:47,627 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:12:47,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:12:47,629 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:12:47,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:12:47,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1445356953, now seen corresponding path program 1 times [2023-11-12 02:12:47,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:12:47,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804115102] [2023-11-12 02:12:47,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:12:47,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:12:47,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:48,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:12:48,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:48,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:12:48,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:48,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:12:48,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:48,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-12 02:12:48,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:48,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:12:48,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:48,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:12:48,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:48,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-12 02:12:48,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:48,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-12 02:12:48,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:48,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-12 02:12:48,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:48,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:12:48,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:12:48,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804115102] [2023-11-12 02:12:48,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804115102] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:12:48,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:12:48,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-12 02:12:48,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847075324] [2023-11-12 02:12:48,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:12:48,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 02:12:48,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:12:48,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 02:12:48,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:12:48,862 INFO L87 Difference]: Start difference. First operand 513 states and 863 transitions. Second operand has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 8 states have internal predecessors, (64), 3 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-12 02:13:08,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:13:08,671 INFO L93 Difference]: Finished difference Result 2358 states and 4223 transitions. [2023-11-12 02:13:08,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-12 02:13:08,672 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 8 states have internal predecessors, (64), 3 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 83 [2023-11-12 02:13:08,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:13:08,696 INFO L225 Difference]: With dead ends: 2358 [2023-11-12 02:13:08,696 INFO L226 Difference]: Without dead ends: 1863 [2023-11-12 02:13:08,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=260, Invalid=670, Unknown=0, NotChecked=0, Total=930 [2023-11-12 02:13:08,705 INFO L413 NwaCegarLoop]: 536 mSDtfsCounter, 4912 mSDsluCounter, 3036 mSDsCounter, 0 mSdLazyCounter, 5648 mSolverCounterSat, 1488 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4981 SdHoareTripleChecker+Valid, 3572 SdHoareTripleChecker+Invalid, 7136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1488 IncrementalHoareTripleChecker+Valid, 5648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2023-11-12 02:13:08,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4981 Valid, 3572 Invalid, 7136 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1488 Valid, 5648 Invalid, 0 Unknown, 0 Unchecked, 12.6s Time] [2023-11-12 02:13:08,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1863 states. [2023-11-12 02:13:09,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1863 to 1324. [2023-11-12 02:13:09,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1324 states, 1049 states have (on average 1.671115347950429) internal successors, (1753), 1096 states have internal predecessors, (1753), 218 states have call successors, (218), 53 states have call predecessors, (218), 56 states have return successors, (252), 210 states have call predecessors, (252), 213 states have call successors, (252) [2023-11-12 02:13:09,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 2223 transitions. [2023-11-12 02:13:09,036 INFO L78 Accepts]: Start accepts. Automaton has 1324 states and 2223 transitions. Word has length 83 [2023-11-12 02:13:09,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:13:09,037 INFO L495 AbstractCegarLoop]: Abstraction has 1324 states and 2223 transitions. [2023-11-12 02:13:09,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 8 states have internal predecessors, (64), 3 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-12 02:13:09,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1324 states and 2223 transitions. [2023-11-12 02:13:09,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-12 02:13:09,041 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:13:09,042 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:13:09,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:13:09,042 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:13:09,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:13:09,043 INFO L85 PathProgramCache]: Analyzing trace with hash 980795981, now seen corresponding path program 1 times [2023-11-12 02:13:09,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:13:09,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076024159] [2023-11-12 02:13:09,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:13:09,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:13:09,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:09,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:13:09,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:09,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:13:09,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:09,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-12 02:13:09,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:09,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-12 02:13:09,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:09,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:13:09,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:10,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:13:10,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:10,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-12 02:13:10,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:10,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:13:10,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:10,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-12 02:13:10,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:10,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-12 02:13:10,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:10,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:13:10,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:13:10,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076024159] [2023-11-12 02:13:10,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076024159] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:13:10,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:13:10,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-12 02:13:10,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278121124] [2023-11-12 02:13:10,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:13:10,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-12 02:13:10,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:13:10,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-12 02:13:10,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-11-12 02:13:10,255 INFO L87 Difference]: Start difference. First operand 1324 states and 2223 transitions. Second operand has 14 states, 14 states have (on average 5.071428571428571) internal successors, (71), 10 states have internal predecessors, (71), 4 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10)