./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec9_product28.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b 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_bb51df23-a692-4aaf-bdac-78fa6e6898bd/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb51df23-a692-4aaf-bdac-78fa6e6898bd/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb51df23-a692-4aaf-bdac-78fa6e6898bd/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb51df23-a692-4aaf-bdac-78fa6e6898bd/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec9_product28.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb51df23-a692-4aaf-bdac-78fa6e6898bd/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb51df23-a692-4aaf-bdac-78fa6e6898bd/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 339ae17141354782861ad14ce1f1515b53735bca35311ebbaf6a68a6022f4172 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:50:34,083 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:50:34,155 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb51df23-a692-4aaf-bdac-78fa6e6898bd/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 22:50:34,161 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:50:34,162 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:50:34,190 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:50:34,191 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:50:34,192 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:50:34,193 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:50:34,193 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:50:34,194 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:50:34,195 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:50:34,195 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:50:34,196 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:50:34,196 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:50:34,197 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:50:34,197 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:50:34,198 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:50:34,198 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:50:34,199 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:50:34,199 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:50:34,200 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:50:34,200 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:50:34,201 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:50:34,201 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:50:34,202 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:50:34,202 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:50:34,202 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:50:34,203 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:50:34,203 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:50:34,204 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:50:34,204 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:50:34,204 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:50:34,205 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:50:34,205 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:50:34,205 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:50:34,206 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:50:34,206 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:50:34,206 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:50:34,207 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_bb51df23-a692-4aaf-bdac-78fa6e6898bd/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb51df23-a692-4aaf-bdac-78fa6e6898bd/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 339ae17141354782861ad14ce1f1515b53735bca35311ebbaf6a68a6022f4172 [2023-11-06 22:50:34,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:50:34,480 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:50:34,483 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:50:34,485 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:50:34,485 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:50:34,487 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb51df23-a692-4aaf-bdac-78fa6e6898bd/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/product-lines/elevator_spec9_product28.cil.c [2023-11-06 22:50:37,689 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:50:38,066 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:50:38,071 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb51df23-a692-4aaf-bdac-78fa6e6898bd/sv-benchmarks/c/product-lines/elevator_spec9_product28.cil.c [2023-11-06 22:50:38,107 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb51df23-a692-4aaf-bdac-78fa6e6898bd/bin/uautomizer-verify-WvqO1wxjHP/data/8d2203d80/e17d573d12e14ef39c7537a34d4891eb/FLAG01d3244d4 [2023-11-06 22:50:38,127 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb51df23-a692-4aaf-bdac-78fa6e6898bd/bin/uautomizer-verify-WvqO1wxjHP/data/8d2203d80/e17d573d12e14ef39c7537a34d4891eb [2023-11-06 22:50:38,136 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:50:38,138 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:50:38,142 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:50:38,142 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:50:38,148 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:50:38,148 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:50:38" (1/1) ... [2023-11-06 22:50:38,150 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60e1dc02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:38, skipping insertion in model container [2023-11-06 22:50:38,150 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:50:38" (1/1) ... [2023-11-06 22:50:38,242 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:50:38,833 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_bb51df23-a692-4aaf-bdac-78fa6e6898bd/sv-benchmarks/c/product-lines/elevator_spec9_product28.cil.c[73050,73063] [2023-11-06 22:50:38,837 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:50:38,858 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:50:38,868 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [48] [2023-11-06 22:50:38,870 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [716] [2023-11-06 22:50:38,870 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [837] [2023-11-06 22:50:38,870 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [875] [2023-11-06 22:50:38,871 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2483] [2023-11-06 22:50:38,872 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification9_spec.i","") [2849] [2023-11-06 22:50:38,872 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [3009] [2023-11-06 22:50:38,872 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [3361] [2023-11-06 22:50:38,873 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [3373] [2023-11-06 22:50:38,873 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3464] [2023-11-06 22:50:39,086 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_bb51df23-a692-4aaf-bdac-78fa6e6898bd/sv-benchmarks/c/product-lines/elevator_spec9_product28.cil.c[73050,73063] [2023-11-06 22:50:39,087 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:50:39,118 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:50:39,118 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:39 WrapperNode [2023-11-06 22:50:39,119 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:50:39,120 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:50:39,120 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:50:39,120 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:50:39,128 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:39" (1/1) ... [2023-11-06 22:50:39,159 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:39" (1/1) ... [2023-11-06 22:50:39,223 INFO L138 Inliner]: procedures = 97, calls = 345, calls flagged for inlining = 27, calls inlined = 23, statements flattened = 1130 [2023-11-06 22:50:39,223 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:50:39,224 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:50:39,224 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:50:39,224 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:50:39,235 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:39" (1/1) ... [2023-11-06 22:50:39,235 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:39" (1/1) ... [2023-11-06 22:50:39,242 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:39" (1/1) ... [2023-11-06 22:50:39,243 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:39" (1/1) ... [2023-11-06 22:50:39,287 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:39" (1/1) ... [2023-11-06 22:50:39,315 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:39" (1/1) ... [2023-11-06 22:50:39,330 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:39" (1/1) ... [2023-11-06 22:50:39,352 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:39" (1/1) ... [2023-11-06 22:50:39,363 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:50:39,368 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:50:39,368 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:50:39,368 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:50:39,369 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:39" (1/1) ... [2023-11-06 22:50:39,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:50:39,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb51df23-a692-4aaf-bdac-78fa6e6898bd/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:50:39,420 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb51df23-a692-4aaf-bdac-78fa6e6898bd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:50:39,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb51df23-a692-4aaf-bdac-78fa6e6898bd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:50:39,466 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-11-06 22:50:39,468 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-11-06 22:50:39,468 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-11-06 22:50:39,469 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-11-06 22:50:39,469 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-11-06 22:50:39,469 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-11-06 22:50:39,469 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-06 22:50:39,469 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-06 22:50:39,470 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-11-06 22:50:39,470 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-11-06 22:50:39,470 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-11-06 22:50:39,470 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-11-06 22:50:39,470 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-11-06 22:50:39,471 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-11-06 22:50:39,471 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-11-06 22:50:39,471 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-11-06 22:50:39,471 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-11-06 22:50:39,472 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-11-06 22:50:39,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:50:39,473 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-11-06 22:50:39,474 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-11-06 22:50:39,474 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-11-06 22:50:39,474 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-11-06 22:50:39,474 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-11-06 22:50:39,475 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-11-06 22:50:39,475 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-06 22:50:39,475 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-06 22:50:39,476 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-11-06 22:50:39,476 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-11-06 22:50:39,476 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-11-06 22:50:39,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-11-06 22:50:39,476 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-11-06 22:50:39,476 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-11-06 22:50:39,477 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-11-06 22:50:39,477 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-11-06 22:50:39,477 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2023-11-06 22:50:39,477 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2023-11-06 22:50:39,477 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-11-06 22:50:39,477 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-11-06 22:50:39,478 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-11-06 22:50:39,478 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-11-06 22:50:39,478 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-11-06 22:50:39,478 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-11-06 22:50:39,478 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-11-06 22:50:39,478 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-11-06 22:50:39,479 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2023-11-06 22:50:39,479 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2023-11-06 22:50:39,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:50:39,479 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-11-06 22:50:39,479 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-11-06 22:50:39,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:50:39,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:50:39,480 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-11-06 22:50:39,480 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-11-06 22:50:39,480 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2023-11-06 22:50:39,480 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2023-11-06 22:50:39,684 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:50:39,687 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:50:40,967 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:50:40,981 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:50:40,981 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:50:41,026 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:50:41 BoogieIcfgContainer [2023-11-06 22:50:41,027 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:50:41,030 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:50:41,030 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:50:41,033 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:50:41,033 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:50:38" (1/3) ... [2023-11-06 22:50:41,034 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ab5f2e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:50:41, skipping insertion in model container [2023-11-06 22:50:41,034 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:39" (2/3) ... [2023-11-06 22:50:41,035 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ab5f2e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:50:41, skipping insertion in model container [2023-11-06 22:50:41,035 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:50:41" (3/3) ... [2023-11-06 22:50:41,036 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec9_product28.cil.c [2023-11-06 22:50:41,056 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:50:41,056 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:50:41,127 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:50:41,134 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@481c233f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:50:41,134 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:50:41,142 INFO L276 IsEmpty]: Start isEmpty. Operand has 573 states, 448 states have (on average 1.6875) internal successors, (756), 471 states have internal predecessors, (756), 97 states have call successors, (97), 26 states have call predecessors, (97), 26 states have return successors, (97), 90 states have call predecessors, (97), 97 states have call successors, (97) [2023-11-06 22:50:41,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-06 22:50:41,158 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:41,159 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] [2023-11-06 22:50:41,159 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:50:41,165 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:41,165 INFO L85 PathProgramCache]: Analyzing trace with hash 2105504779, now seen corresponding path program 1 times [2023-11-06 22:50:41,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:41,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854085803] [2023-11-06 22:50:41,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:41,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:41,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:41,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:50:41,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:42,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:50:42,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:42,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 22:50:42,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:42,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:50:42,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:42,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:50:42,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:42,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:50:42,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:42,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-06 22:50:42,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:42,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:50:42,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:42,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:50:42,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:50:42,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854085803] [2023-11-06 22:50:42,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854085803] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:50:42,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:50:42,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:50:42,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781211115] [2023-11-06 22:50:42,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:50:42,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:50:42,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:50:42,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:50:42,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:50:42,763 INFO L87 Difference]: Start difference. First operand has 573 states, 448 states have (on average 1.6875) internal successors, (756), 471 states have internal predecessors, (756), 97 states have call successors, (97), 26 states have call predecessors, (97), 26 states have return successors, (97), 90 states have call predecessors, (97), 97 states have call successors, (97) Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-06 22:50:50,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:50:50,159 INFO L93 Difference]: Finished difference Result 1280 states and 2154 transitions. [2023-11-06 22:50:50,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:50:50,169 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 62 [2023-11-06 22:50:50,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:50:50,204 INFO L225 Difference]: With dead ends: 1280 [2023-11-06 22:50:50,204 INFO L226 Difference]: Without dead ends: 719 [2023-11-06 22:50:50,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:50:50,222 INFO L413 NwaCegarLoop]: 338 mSDtfsCounter, 1166 mSDsluCounter, 809 mSDsCounter, 0 mSdLazyCounter, 2619 mSolverCounterSat, 253 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1249 SdHoareTripleChecker+Valid, 1147 SdHoareTripleChecker+Invalid, 2872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 253 IncrementalHoareTripleChecker+Valid, 2619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-11-06 22:50:50,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1249 Valid, 1147 Invalid, 2872 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [253 Valid, 2619 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-11-06 22:50:50,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2023-11-06 22:50:50,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 565. [2023-11-06 22:50:50,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 442 states have (on average 1.6832579185520362) internal successors, (744), 463 states have internal predecessors, (744), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (92), 89 states have call predecessors, (92), 92 states have call successors, (92) [2023-11-06 22:50:50,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 933 transitions. [2023-11-06 22:50:50,484 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 933 transitions. Word has length 62 [2023-11-06 22:50:50,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:50:50,484 INFO L495 AbstractCegarLoop]: Abstraction has 565 states and 933 transitions. [2023-11-06 22:50:50,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-06 22:50:50,485 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 933 transitions. [2023-11-06 22:50:50,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-06 22:50:50,490 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:50,490 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] [2023-11-06 22:50:50,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:50:50,491 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:50:50,492 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:50,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1663681637, now seen corresponding path program 1 times [2023-11-06 22:50:50,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:50,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727103702] [2023-11-06 22:50:50,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:50,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:50,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:50,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:50:50,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:50,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:50:50,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:50,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:50:50,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:51,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-06 22:50:51,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:51,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:50:51,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:51,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:50:51,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:51,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-06 22:50:51,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:51,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:50:51,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:51,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:50:51,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:50:51,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727103702] [2023-11-06 22:50:51,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727103702] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:50:51,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:50:51,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:50:51,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341181678] [2023-11-06 22:50:51,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:50:51,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:50:51,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:50:51,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:50:51,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:50:51,374 INFO L87 Difference]: Start difference. First operand 565 states and 933 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-06 22:50:58,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:50:58,615 INFO L93 Difference]: Finished difference Result 1266 states and 2120 transitions. [2023-11-06 22:50:58,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:50:58,616 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 65 [2023-11-06 22:50:58,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:50:58,624 INFO L225 Difference]: With dead ends: 1266 [2023-11-06 22:50:58,624 INFO L226 Difference]: Without dead ends: 719 [2023-11-06 22:50:58,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:50:58,630 INFO L413 NwaCegarLoop]: 324 mSDtfsCounter, 702 mSDsluCounter, 782 mSDsCounter, 0 mSdLazyCounter, 2767 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 1106 SdHoareTripleChecker+Invalid, 2886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 2767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-11-06 22:50:58,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [785 Valid, 1106 Invalid, 2886 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [119 Valid, 2767 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2023-11-06 22:50:58,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2023-11-06 22:50:58,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 565. [2023-11-06 22:50:58,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 442 states have (on average 1.6809954751131222) internal successors, (743), 463 states have internal predecessors, (743), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (92), 89 states have call predecessors, (92), 92 states have call successors, (92) [2023-11-06 22:50:58,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 932 transitions. [2023-11-06 22:50:58,813 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 932 transitions. Word has length 65 [2023-11-06 22:50:58,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:50:58,813 INFO L495 AbstractCegarLoop]: Abstraction has 565 states and 932 transitions. [2023-11-06 22:50:58,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-06 22:50:58,813 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 932 transitions. [2023-11-06 22:50:58,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-06 22:50:58,818 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:58,818 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] [2023-11-06 22:50:58,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:50:58,819 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:50:58,819 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:58,819 INFO L85 PathProgramCache]: Analyzing trace with hash 645158875, now seen corresponding path program 1 times [2023-11-06 22:50:58,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:58,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031688730] [2023-11-06 22:50:58,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:58,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:58,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:59,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:50:59,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:59,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:50:59,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:59,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-06 22:50:59,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:59,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-06 22:50:59,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:59,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:50:59,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:59,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:50:59,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:59,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-06 22:50:59,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:59,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:50:59,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:59,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:50:59,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:50:59,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031688730] [2023-11-06 22:50:59,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031688730] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:50:59,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:50:59,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:50:59,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407575362] [2023-11-06 22:50:59,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:50:59,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:50:59,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:50:59,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:50:59,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:50:59,615 INFO L87 Difference]: Start difference. First operand 565 states and 932 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-06 22:51:06,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:51:06,108 INFO L93 Difference]: Finished difference Result 1266 states and 2119 transitions. [2023-11-06 22:51:06,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:51:06,109 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 66 [2023-11-06 22:51:06,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:51:06,117 INFO L225 Difference]: With dead ends: 1266 [2023-11-06 22:51:06,117 INFO L226 Difference]: Without dead ends: 719 [2023-11-06 22:51:06,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:51:06,122 INFO L413 NwaCegarLoop]: 321 mSDtfsCounter, 1164 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 2609 mSolverCounterSat, 263 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1247 SdHoareTripleChecker+Valid, 1089 SdHoareTripleChecker+Invalid, 2872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 263 IncrementalHoareTripleChecker+Valid, 2609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:51:06,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1247 Valid, 1089 Invalid, 2872 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [263 Valid, 2609 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-11-06 22:51:06,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2023-11-06 22:51:06,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 565. [2023-11-06 22:51:06,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 442 states have (on average 1.6787330316742082) internal successors, (742), 463 states have internal predecessors, (742), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (92), 89 states have call predecessors, (92), 92 states have call successors, (92) [2023-11-06 22:51:06,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 931 transitions. [2023-11-06 22:51:06,277 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 931 transitions. Word has length 66 [2023-11-06 22:51:06,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:51:06,278 INFO L495 AbstractCegarLoop]: Abstraction has 565 states and 931 transitions. [2023-11-06 22:51:06,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-06 22:51:06,278 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 931 transitions. [2023-11-06 22:51:06,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-06 22:51:06,280 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:51:06,280 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] [2023-11-06 22:51:06,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:51:06,281 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:51:06,281 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:51:06,281 INFO L85 PathProgramCache]: Analyzing trace with hash -2082562911, now seen corresponding path program 1 times [2023-11-06 22:51:06,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:51:06,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767248673] [2023-11-06 22:51:06,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:51:06,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:51:06,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:06,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:51:06,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:06,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:51:06,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:06,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:51:06,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:06,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-06 22:51:06,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:07,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:51:07,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:07,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:51:07,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:07,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-06 22:51:07,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:07,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:51:07,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:07,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:51:07,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:51:07,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767248673] [2023-11-06 22:51:07,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767248673] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:51:07,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:51:07,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:51:07,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535307263] [2023-11-06 22:51:07,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:51:07,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:51:07,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:51:07,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:51:07,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:51:07,061 INFO L87 Difference]: Start difference. First operand 565 states and 931 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-06 22:51:13,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:51:13,594 INFO L93 Difference]: Finished difference Result 1266 states and 2118 transitions. [2023-11-06 22:51:13,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:51:13,595 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 67 [2023-11-06 22:51:13,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:51:13,603 INFO L225 Difference]: With dead ends: 1266 [2023-11-06 22:51:13,603 INFO L226 Difference]: Without dead ends: 719 [2023-11-06 22:51:13,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:51:13,608 INFO L413 NwaCegarLoop]: 322 mSDtfsCounter, 1158 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 2615 mSolverCounterSat, 262 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1241 SdHoareTripleChecker+Valid, 1092 SdHoareTripleChecker+Invalid, 2877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 262 IncrementalHoareTripleChecker+Valid, 2615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:51:13,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1241 Valid, 1092 Invalid, 2877 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [262 Valid, 2615 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-11-06 22:51:13,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2023-11-06 22:51:13,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 565. [2023-11-06 22:51:13,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 442 states have (on average 1.6764705882352942) internal successors, (741), 463 states have internal predecessors, (741), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (92), 89 states have call predecessors, (92), 92 states have call successors, (92) [2023-11-06 22:51:13,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 930 transitions. [2023-11-06 22:51:13,774 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 930 transitions. Word has length 67 [2023-11-06 22:51:13,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:51:13,775 INFO L495 AbstractCegarLoop]: Abstraction has 565 states and 930 transitions. [2023-11-06 22:51:13,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-06 22:51:13,775 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 930 transitions. [2023-11-06 22:51:13,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-06 22:51:13,777 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:51:13,777 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] [2023-11-06 22:51:13,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:51:13,777 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:51:13,778 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:51:13,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1960879593, now seen corresponding path program 1 times [2023-11-06 22:51:13,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:51:13,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463487841] [2023-11-06 22:51:13,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:51:13,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:51:13,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:14,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:51:14,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:14,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:51:14,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:14,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-06 22:51:14,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:14,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-06 22:51:14,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:14,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:51:14,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:14,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:51:14,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:14,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-06 22:51:14,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:14,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:51:14,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:14,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:51:14,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:51:14,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463487841] [2023-11-06 22:51:14,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463487841] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:51:14,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:51:14,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 22:51:14,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987075124] [2023-11-06 22:51:14,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:51:14,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:51:14,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:51:14,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:51:14,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:51:14,711 INFO L87 Difference]: Start difference. First operand 565 states and 930 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-06 22:51:23,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:51:23,246 INFO L93 Difference]: Finished difference Result 1274 states and 2133 transitions. [2023-11-06 22:51:23,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 22:51:23,247 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 68 [2023-11-06 22:51:23,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:51:23,254 INFO L225 Difference]: With dead ends: 1274 [2023-11-06 22:51:23,254 INFO L226 Difference]: Without dead ends: 727 [2023-11-06 22:51:23,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:51:23,259 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 744 mSDsluCounter, 1632 mSDsCounter, 0 mSdLazyCounter, 5046 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 829 SdHoareTripleChecker+Valid, 1955 SdHoareTripleChecker+Invalid, 5175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 5046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:51:23,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [829 Valid, 1955 Invalid, 5175 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [129 Valid, 5046 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2023-11-06 22:51:23,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2023-11-06 22:51:23,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 569. [2023-11-06 22:51:23,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 445 states have (on average 1.6696629213483145) internal successors, (743), 466 states have internal predecessors, (743), 97 states have call successors, (97), 26 states have call predecessors, (97), 26 states have return successors, (94), 90 states have call predecessors, (94), 92 states have call successors, (94) [2023-11-06 22:51:23,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 934 transitions. [2023-11-06 22:51:23,461 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 934 transitions. Word has length 68 [2023-11-06 22:51:23,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:51:23,462 INFO L495 AbstractCegarLoop]: Abstraction has 569 states and 934 transitions. [2023-11-06 22:51:23,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-06 22:51:23,462 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 934 transitions. [2023-11-06 22:51:23,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-06 22:51:23,464 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:51:23,464 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, 1] [2023-11-06 22:51:23,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:51:23,465 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:51:23,465 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:51:23,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1053687398, now seen corresponding path program 1 times [2023-11-06 22:51:23,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:51:23,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485283356] [2023-11-06 22:51:23,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:51:23,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:51:23,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:23,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:51:23,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:23,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:51:23,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:23,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-06 22:51:23,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:24,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:51:24,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:24,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:51:24,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:24,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:51:24,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:24,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-06 22:51:24,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:24,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:51:24,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:24,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:51:24,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:24,491 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:51:24,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:51:24,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485283356] [2023-11-06 22:51:24,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485283356] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:51:24,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:51:24,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-06 22:51:24,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315338762] [2023-11-06 22:51:24,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:51:24,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 22:51:24,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:51:24,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 22:51:24,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:51:24,495 INFO L87 Difference]: Start difference. First operand 569 states and 934 transitions. Second operand has 11 states, 10 states have (on average 5.4) internal successors, (54), 8 states have internal predecessors, (54), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-06 22:51:34,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:51:34,286 INFO L93 Difference]: Finished difference Result 1253 states and 2080 transitions. [2023-11-06 22:51:34,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-06 22:51:34,287 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.4) internal successors, (54), 8 states have internal predecessors, (54), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 75 [2023-11-06 22:51:34,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:51:34,293 INFO L225 Difference]: With dead ends: 1253 [2023-11-06 22:51:34,293 INFO L226 Difference]: Without dead ends: 751 [2023-11-06 22:51:34,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2023-11-06 22:51:34,301 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 831 mSDsluCounter, 2257 mSDsCounter, 0 mSdLazyCounter, 6624 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 915 SdHoareTripleChecker+Valid, 2586 SdHoareTripleChecker+Invalid, 6749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 6624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:51:34,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [915 Valid, 2586 Invalid, 6749 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [125 Valid, 6624 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2023-11-06 22:51:34,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2023-11-06 22:51:34,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 582. [2023-11-06 22:51:34,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 455 states have (on average 1.665934065934066) internal successors, (758), 478 states have internal predecessors, (758), 98 states have call successors, (98), 26 states have call predecessors, (98), 28 states have return successors, (97), 91 states have call predecessors, (97), 93 states have call successors, (97) [2023-11-06 22:51:34,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 953 transitions. [2023-11-06 22:51:34,480 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 953 transitions. Word has length 75 [2023-11-06 22:51:34,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:51:34,481 INFO L495 AbstractCegarLoop]: Abstraction has 582 states and 953 transitions. [2023-11-06 22:51:34,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.4) internal successors, (54), 8 states have internal predecessors, (54), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-06 22:51:34,482 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 953 transitions. [2023-11-06 22:51:34,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-06 22:51:34,484 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:51:34,485 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, 1] [2023-11-06 22:51:34,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:51:34,485 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:51:34,485 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:51:34,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1310660793, now seen corresponding path program 1 times [2023-11-06 22:51:34,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:51:34,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58935949] [2023-11-06 22:51:34,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:51:34,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:51:34,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:34,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:51:34,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:34,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:51:34,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:34,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-06 22:51:34,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:35,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:51:35,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:35,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:51:35,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:35,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:51:35,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:35,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-06 22:51:35,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:35,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:51:35,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:35,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:51:35,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:35,432 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:51:35,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:51:35,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58935949] [2023-11-06 22:51:35,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58935949] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:51:35,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:51:35,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-06 22:51:35,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777518934] [2023-11-06 22:51:35,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:51:35,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 22:51:35,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:51:35,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 22:51:35,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:51:35,437 INFO L87 Difference]: Start difference. First operand 582 states and 953 transitions. Second operand has 12 states, 12 states have (on average 4.5) internal successors, (54), 8 states have internal predecessors, (54), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-06 22:51:50,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:51:50,496 INFO L93 Difference]: Finished difference Result 1590 states and 2628 transitions. [2023-11-06 22:51:50,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-06 22:51:50,497 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 8 states have internal predecessors, (54), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) Word has length 75 [2023-11-06 22:51:50,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:51:50,508 INFO L225 Difference]: With dead ends: 1590 [2023-11-06 22:51:50,509 INFO L226 Difference]: Without dead ends: 1070 [2023-11-06 22:51:50,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=157, Invalid=835, Unknown=0, NotChecked=0, Total=992 [2023-11-06 22:51:50,513 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 1952 mSDsluCounter, 2077 mSDsCounter, 0 mSdLazyCounter, 8759 mSolverCounterSat, 363 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2023 SdHoareTripleChecker+Valid, 2382 SdHoareTripleChecker+Invalid, 9122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 363 IncrementalHoareTripleChecker+Valid, 8759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2023-11-06 22:51:50,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2023 Valid, 2382 Invalid, 9122 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [363 Valid, 8759 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2023-11-06 22:51:50,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1070 states. [2023-11-06 22:51:50,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1070 to 828. [2023-11-06 22:51:50,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 649 states have (on average 1.6394453004622496) internal successors, (1064), 672 states have internal predecessors, (1064), 136 states have call successors, (136), 39 states have call predecessors, (136), 42 states have return successors, (141), 130 states have call predecessors, (141), 131 states have call successors, (141) [2023-11-06 22:51:50,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1341 transitions. [2023-11-06 22:51:50,781 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1341 transitions. Word has length 75 [2023-11-06 22:51:50,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:51:50,782 INFO L495 AbstractCegarLoop]: Abstraction has 828 states and 1341 transitions. [2023-11-06 22:51:50,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 8 states have internal predecessors, (54), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-06 22:51:50,782 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1341 transitions. [2023-11-06 22:51:50,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-06 22:51:50,784 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:51:50,785 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] [2023-11-06 22:51:50,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:51:50,785 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:51:50,786 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:51:50,786 INFO L85 PathProgramCache]: Analyzing trace with hash -906958808, now seen corresponding path program 1 times [2023-11-06 22:51:50,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:51:50,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076320108] [2023-11-06 22:51:50,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:51:50,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:51:50,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:51,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:51:51,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:51,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:51:51,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:51,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-06 22:51:51,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:51,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-06 22:51:51,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:51,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:51:51,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:51,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:51:51,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:51,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-06 22:51:51,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:51,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:51:51,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:51,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:51:51,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:51:51,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076320108] [2023-11-06 22:51:51,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076320108] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:51:51,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:51:51,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:51:51,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305736090] [2023-11-06 22:51:51,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:51:51,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:51:51,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:51:51,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:51:51,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:51:51,560 INFO L87 Difference]: Start difference. First operand 828 states and 1341 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-06 22:51:58,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:51:58,334 INFO L93 Difference]: Finished difference Result 1791 states and 2939 transitions. [2023-11-06 22:51:58,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:51:58,335 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 75 [2023-11-06 22:51:58,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:51:58,344 INFO L225 Difference]: With dead ends: 1791 [2023-11-06 22:51:58,344 INFO L226 Difference]: Without dead ends: 1025 [2023-11-06 22:51:58,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:51:58,349 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 782 mSDsluCounter, 782 mSDsCounter, 0 mSdLazyCounter, 2678 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 865 SdHoareTripleChecker+Valid, 1112 SdHoareTripleChecker+Invalid, 2797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 2678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-11-06 22:51:58,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [865 Valid, 1112 Invalid, 2797 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [119 Valid, 2678 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-11-06 22:51:58,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1025 states. [2023-11-06 22:51:58,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1025 to 828. [2023-11-06 22:51:58,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 649 states have (on average 1.6317411402157165) internal successors, (1059), 672 states have internal predecessors, (1059), 136 states have call successors, (136), 39 states have call predecessors, (136), 42 states have return successors, (141), 130 states have call predecessors, (141), 131 states have call successors, (141) [2023-11-06 22:51:58,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1336 transitions. [2023-11-06 22:51:58,639 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1336 transitions. Word has length 75 [2023-11-06 22:51:58,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:51:58,639 INFO L495 AbstractCegarLoop]: Abstraction has 828 states and 1336 transitions. [2023-11-06 22:51:58,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-06 22:51:58,640 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1336 transitions. [2023-11-06 22:51:58,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-06 22:51:58,642 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:51:58,642 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] [2023-11-06 22:51:58,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 22:51:58,643 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:51:58,643 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:51:58,643 INFO L85 PathProgramCache]: Analyzing trace with hash 635775497, now seen corresponding path program 1 times [2023-11-06 22:51:58,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:51:58,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029612411] [2023-11-06 22:51:58,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:51:58,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:51:58,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:58,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:51:58,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:58,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:51:58,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:58,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-06 22:51:58,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:59,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:51:59,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:59,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:51:59,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:59,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:51:59,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:59,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-06 22:51:59,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:59,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:51:59,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:59,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:51:59,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:51:59,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029612411] [2023-11-06 22:51:59,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029612411] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:51:59,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:51:59,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:51:59,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128711331] [2023-11-06 22:51:59,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:51:59,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:51:59,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:51:59,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:51:59,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:51:59,411 INFO L87 Difference]: Start difference. First operand 828 states and 1336 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-06 22:52:05,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:52:05,960 INFO L93 Difference]: Finished difference Result 1791 states and 2934 transitions. [2023-11-06 22:52:05,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:52:05,961 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 76 [2023-11-06 22:52:05,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:52:05,968 INFO L225 Difference]: With dead ends: 1791 [2023-11-06 22:52:05,968 INFO L226 Difference]: Without dead ends: 1025 [2023-11-06 22:52:05,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:52:05,973 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 777 mSDsluCounter, 782 mSDsCounter, 0 mSdLazyCounter, 2651 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 860 SdHoareTripleChecker+Valid, 1112 SdHoareTripleChecker+Invalid, 2770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 2651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:52:05,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [860 Valid, 1112 Invalid, 2770 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [119 Valid, 2651 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-11-06 22:52:05,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1025 states. [2023-11-06 22:52:06,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1025 to 828. [2023-11-06 22:52:06,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 649 states have (on average 1.6240369799691834) internal successors, (1054), 672 states have internal predecessors, (1054), 136 states have call successors, (136), 39 states have call predecessors, (136), 42 states have return successors, (141), 130 states have call predecessors, (141), 131 states have call successors, (141) [2023-11-06 22:52:06,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1331 transitions. [2023-11-06 22:52:06,265 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1331 transitions. Word has length 76 [2023-11-06 22:52:06,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:52:06,265 INFO L495 AbstractCegarLoop]: Abstraction has 828 states and 1331 transitions. [2023-11-06 22:52:06,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-06 22:52:06,266 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1331 transitions. [2023-11-06 22:52:06,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-06 22:52:06,268 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:52:06,268 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] [2023-11-06 22:52:06,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 22:52:06,268 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:52:06,269 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:52:06,269 INFO L85 PathProgramCache]: Analyzing trace with hash 20276675, now seen corresponding path program 1 times [2023-11-06 22:52:06,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:52:06,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140290180] [2023-11-06 22:52:06,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:52:06,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:52:06,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:06,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:52:06,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:06,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:52:06,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:06,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-06 22:52:06,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:07,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-06 22:52:07,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:07,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:52:07,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:07,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:52:07,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:07,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-06 22:52:07,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:07,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:52:07,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:07,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:52:07,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:52:07,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140290180] [2023-11-06 22:52:07,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140290180] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:52:07,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:52:07,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 22:52:07,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224821272] [2023-11-06 22:52:07,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:52:07,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:52:07,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:52:07,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:52:07,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:52:07,071 INFO L87 Difference]: Start difference. First operand 828 states and 1331 transitions. Second operand has 9 states, 8 states have (on average 7.5) internal successors, (60), 6 states have internal predecessors, (60), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-06 22:52:16,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:52:16,428 INFO L93 Difference]: Finished difference Result 1781 states and 2909 transitions. [2023-11-06 22:52:16,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-06 22:52:16,429 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 6 states have internal predecessors, (60), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 77 [2023-11-06 22:52:16,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:52:16,438 INFO L225 Difference]: With dead ends: 1781 [2023-11-06 22:52:16,438 INFO L226 Difference]: Without dead ends: 1030 [2023-11-06 22:52:16,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2023-11-06 22:52:16,444 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 765 mSDsluCounter, 1681 mSDsCounter, 0 mSdLazyCounter, 4996 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 849 SdHoareTripleChecker+Valid, 2012 SdHoareTripleChecker+Invalid, 5115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 4996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-11-06 22:52:16,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [849 Valid, 2012 Invalid, 5115 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [119 Valid, 4996 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-11-06 22:52:16,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2023-11-06 22:52:16,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 828. [2023-11-06 22:52:16,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 649 states have (on average 1.6224961479198767) internal successors, (1053), 672 states have internal predecessors, (1053), 136 states have call successors, (136), 39 states have call predecessors, (136), 42 states have return successors, (141), 130 states have call predecessors, (141), 131 states have call successors, (141) [2023-11-06 22:52:16,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1330 transitions. [2023-11-06 22:52:16,808 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1330 transitions. Word has length 77 [2023-11-06 22:52:16,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:52:16,809 INFO L495 AbstractCegarLoop]: Abstraction has 828 states and 1330 transitions. [2023-11-06 22:52:16,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 6 states have internal predecessors, (60), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-06 22:52:16,809 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1330 transitions. [2023-11-06 22:52:16,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-06 22:52:16,812 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:52:16,812 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] [2023-11-06 22:52:16,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 22:52:16,813 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:52:16,813 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:52:16,813 INFO L85 PathProgramCache]: Analyzing trace with hash 13198051, now seen corresponding path program 1 times [2023-11-06 22:52:16,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:52:16,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099336737] [2023-11-06 22:52:16,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:52:16,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:52:16,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:17,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:52:17,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:17,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:52:17,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:17,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-06 22:52:17,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:17,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-06 22:52:17,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:17,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:52:17,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:17,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:52:17,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:17,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-06 22:52:17,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:17,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:52:17,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:17,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:52:17,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:52:17,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099336737] [2023-11-06 22:52:17,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099336737] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:52:17,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:52:17,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:52:17,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368321408] [2023-11-06 22:52:17,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:52:17,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:52:17,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:52:17,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:52:17,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:52:17,492 INFO L87 Difference]: Start difference. First operand 828 states and 1330 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-06 22:52:23,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:52:23,464 INFO L93 Difference]: Finished difference Result 1791 states and 2926 transitions. [2023-11-06 22:52:23,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:52:23,465 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 77 [2023-11-06 22:52:23,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:52:23,473 INFO L225 Difference]: With dead ends: 1791 [2023-11-06 22:52:23,473 INFO L226 Difference]: Without dead ends: 1025 [2023-11-06 22:52:23,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:52:23,477 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 1235 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 2501 mSolverCounterSat, 253 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1318 SdHoareTripleChecker+Valid, 1094 SdHoareTripleChecker+Invalid, 2754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 253 IncrementalHoareTripleChecker+Valid, 2501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:52:23,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1318 Valid, 1094 Invalid, 2754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [253 Valid, 2501 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-11-06 22:52:23,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1025 states. [2023-11-06 22:52:23,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1025 to 828. [2023-11-06 22:52:23,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 649 states have (on average 1.6147919876733436) internal successors, (1048), 672 states have internal predecessors, (1048), 136 states have call successors, (136), 39 states have call predecessors, (136), 42 states have return successors, (141), 130 states have call predecessors, (141), 131 states have call successors, (141) [2023-11-06 22:52:23,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1325 transitions. [2023-11-06 22:52:23,809 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1325 transitions. Word has length 77 [2023-11-06 22:52:23,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:52:23,810 INFO L495 AbstractCegarLoop]: Abstraction has 828 states and 1325 transitions. [2023-11-06 22:52:23,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-06 22:52:23,810 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1325 transitions. [2023-11-06 22:52:23,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-06 22:52:23,813 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:52:23,813 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] [2023-11-06 22:52:23,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-06 22:52:23,814 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:52:23,814 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:52:23,814 INFO L85 PathProgramCache]: Analyzing trace with hash 583075782, now seen corresponding path program 1 times [2023-11-06 22:52:23,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:52:23,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84891112] [2023-11-06 22:52:23,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:52:23,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:52:23,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:24,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:52:24,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:24,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:52:24,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:24,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-06 22:52:24,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:24,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-06 22:52:24,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:24,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:52:24,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:24,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:52:24,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:24,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-06 22:52:24,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:24,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:52:24,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:24,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:52:24,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:52:24,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84891112] [2023-11-06 22:52:24,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84891112] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:52:24,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:52:24,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 22:52:24,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884006730] [2023-11-06 22:52:24,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:52:24,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:52:24,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:52:24,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:52:24,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:52:24,619 INFO L87 Difference]: Start difference. First operand 828 states and 1325 transitions. Second operand has 9 states, 8 states have (on average 7.625) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-06 22:52:33,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:52:33,520 INFO L93 Difference]: Finished difference Result 1802 states and 2933 transitions. [2023-11-06 22:52:33,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-06 22:52:33,523 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.625) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 78 [2023-11-06 22:52:33,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:52:33,531 INFO L225 Difference]: With dead ends: 1802 [2023-11-06 22:52:33,532 INFO L226 Difference]: Without dead ends: 1048 [2023-11-06 22:52:33,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2023-11-06 22:52:33,536 INFO L413 NwaCegarLoop]: 325 mSDtfsCounter, 1238 mSDsluCounter, 1652 mSDsCounter, 0 mSdLazyCounter, 4759 mSolverCounterSat, 259 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1322 SdHoareTripleChecker+Valid, 1977 SdHoareTripleChecker+Invalid, 5018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 259 IncrementalHoareTripleChecker+Valid, 4759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:52:33,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1322 Valid, 1977 Invalid, 5018 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [259 Valid, 4759 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2023-11-06 22:52:33,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2023-11-06 22:52:33,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 831. [2023-11-06 22:52:33,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 831 states, 652 states have (on average 1.6104294478527608) internal successors, (1050), 675 states have internal predecessors, (1050), 136 states have call successors, (136), 39 states have call predecessors, (136), 42 states have return successors, (141), 130 states have call predecessors, (141), 131 states have call successors, (141) [2023-11-06 22:52:33,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1327 transitions. [2023-11-06 22:52:33,905 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1327 transitions. Word has length 78 [2023-11-06 22:52:33,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:52:33,905 INFO L495 AbstractCegarLoop]: Abstraction has 831 states and 1327 transitions. [2023-11-06 22:52:33,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.625) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-06 22:52:33,906 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1327 transitions. [2023-11-06 22:52:33,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-06 22:52:33,909 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:52:33,909 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] [2023-11-06 22:52:33,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-06 22:52:33,909 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:52:33,910 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:52:33,910 INFO L85 PathProgramCache]: Analyzing trace with hash 985433060, now seen corresponding path program 1 times [2023-11-06 22:52:33,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:52:33,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394628894] [2023-11-06 22:52:33,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:52:33,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:52:33,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:34,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:52:34,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:34,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:52:34,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:34,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-06 22:52:34,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:34,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-06 22:52:34,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:34,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:52:34,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:34,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:52:34,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:34,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-06 22:52:34,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:34,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:52:34,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:34,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:52:34,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:52:34,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394628894] [2023-11-06 22:52:34,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394628894] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:52:34,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:52:34,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:52:34,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332015950] [2023-11-06 22:52:34,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:52:34,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:52:34,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:52:34,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:52:34,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:52:34,605 INFO L87 Difference]: Start difference. First operand 831 states and 1327 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-06 22:52:40,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:52:40,635 INFO L93 Difference]: Finished difference Result 1800 states and 2927 transitions. [2023-11-06 22:52:40,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:52:40,636 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 78 [2023-11-06 22:52:40,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:52:40,641 INFO L225 Difference]: With dead ends: 1800 [2023-11-06 22:52:40,641 INFO L226 Difference]: Without dead ends: 1031 [2023-11-06 22:52:40,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:52:40,645 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 1228 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 2486 mSolverCounterSat, 253 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1311 SdHoareTripleChecker+Valid, 1095 SdHoareTripleChecker+Invalid, 2739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 253 IncrementalHoareTripleChecker+Valid, 2486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:52:40,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1311 Valid, 1095 Invalid, 2739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [253 Valid, 2486 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-11-06 22:52:40,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2023-11-06 22:52:40,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 831. [2023-11-06 22:52:40,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 831 states, 652 states have (on average 1.602760736196319) internal successors, (1045), 675 states have internal predecessors, (1045), 136 states have call successors, (136), 39 states have call predecessors, (136), 42 states have return successors, (141), 130 states have call predecessors, (141), 131 states have call successors, (141) [2023-11-06 22:52:40,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1322 transitions. [2023-11-06 22:52:40,932 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1322 transitions. Word has length 78 [2023-11-06 22:52:40,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:52:40,933 INFO L495 AbstractCegarLoop]: Abstraction has 831 states and 1322 transitions. [2023-11-06 22:52:40,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-06 22:52:40,933 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1322 transitions. [2023-11-06 22:52:40,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-06 22:52:40,935 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:52:40,935 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] [2023-11-06 22:52:40,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-06 22:52:40,936 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:52:40,936 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:52:40,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1402916734, now seen corresponding path program 1 times [2023-11-06 22:52:40,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:52:40,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703456958] [2023-11-06 22:52:40,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:52:40,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:52:40,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:41,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:52:41,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:41,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:52:41,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:41,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-06 22:52:41,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:41,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-06 22:52:41,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:41,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:52:41,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:41,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:52:41,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:41,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-06 22:52:41,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:41,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:52:41,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:41,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:52:41,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:52:41,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703456958] [2023-11-06 22:52:41,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703456958] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:52:41,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:52:41,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 22:52:41,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205352401] [2023-11-06 22:52:41,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:52:41,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:52:41,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:52:41,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:52:41,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:52:41,751 INFO L87 Difference]: Start difference. First operand 831 states and 1322 transitions. Second operand has 9 states, 8 states have (on average 7.75) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-06 22:52:50,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:52:50,771 INFO L93 Difference]: Finished difference Result 1808 states and 2930 transitions. [2023-11-06 22:52:50,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-06 22:52:50,776 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.75) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 79 [2023-11-06 22:52:50,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:52:50,783 INFO L225 Difference]: With dead ends: 1808 [2023-11-06 22:52:50,783 INFO L226 Difference]: Without dead ends: 1054 [2023-11-06 22:52:50,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2023-11-06 22:52:50,788 INFO L413 NwaCegarLoop]: 324 mSDtfsCounter, 1229 mSDsluCounter, 1653 mSDsCounter, 0 mSdLazyCounter, 4717 mSolverCounterSat, 264 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1313 SdHoareTripleChecker+Valid, 1977 SdHoareTripleChecker+Invalid, 4981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 264 IncrementalHoareTripleChecker+Valid, 4717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:52:50,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1313 Valid, 1977 Invalid, 4981 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [264 Valid, 4717 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2023-11-06 22:52:50,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1054 states. [2023-11-06 22:52:51,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1054 to 835. [2023-11-06 22:52:51,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 656 states have (on average 1.5975609756097562) internal successors, (1048), 679 states have internal predecessors, (1048), 136 states have call successors, (136), 39 states have call predecessors, (136), 42 states have return successors, (141), 130 states have call predecessors, (141), 131 states have call successors, (141) [2023-11-06 22:52:51,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1325 transitions. [2023-11-06 22:52:51,084 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1325 transitions. Word has length 79 [2023-11-06 22:52:51,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:52:51,085 INFO L495 AbstractCegarLoop]: Abstraction has 835 states and 1325 transitions. [2023-11-06 22:52:51,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.75) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-06 22:52:51,085 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1325 transitions. [2023-11-06 22:52:51,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-06 22:52:51,087 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:52:51,087 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] [2023-11-06 22:52:51,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-06 22:52:51,088 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:52:51,088 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:52:51,088 INFO L85 PathProgramCache]: Analyzing trace with hash -142753378, now seen corresponding path program 1 times [2023-11-06 22:52:51,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:52:51,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763584489] [2023-11-06 22:52:51,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:52:51,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:52:51,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:51,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:52:51,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:51,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:52:51,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:51,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-06 22:52:51,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:51,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-06 22:52:51,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:51,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:52:51,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:51,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:52:51,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:51,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-06 22:52:51,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:51,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:52:51,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:51,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:52:51,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:52:51,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763584489] [2023-11-06 22:52:51,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763584489] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:52:51,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:52:51,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:52:51,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380699431] [2023-11-06 22:52:51,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:52:51,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:52:51,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:52:51,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:52:51,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:52:51,826 INFO L87 Difference]: Start difference. First operand 835 states and 1325 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-06 22:52:58,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:52:58,419 INFO L93 Difference]: Finished difference Result 1848 states and 2972 transitions. [2023-11-06 22:52:58,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:52:58,420 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 79 [2023-11-06 22:52:58,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:52:58,426 INFO L225 Difference]: With dead ends: 1848 [2023-11-06 22:52:58,426 INFO L226 Difference]: Without dead ends: 1011 [2023-11-06 22:52:58,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:52:58,429 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 1143 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 2516 mSolverCounterSat, 251 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1226 SdHoareTripleChecker+Valid, 1094 SdHoareTripleChecker+Invalid, 2767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 251 IncrementalHoareTripleChecker+Valid, 2516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:52:58,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1226 Valid, 1094 Invalid, 2767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [251 Valid, 2516 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-11-06 22:52:58,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1011 states. [2023-11-06 22:52:58,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1011 to 816. [2023-11-06 22:52:58,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 816 states, 640 states have (on average 1.603125) internal successors, (1026), 661 states have internal predecessors, (1026), 135 states have call successors, (135), 39 states have call predecessors, (135), 40 states have return successors, (138), 129 states have call predecessors, (138), 130 states have call successors, (138) [2023-11-06 22:52:58,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 1299 transitions. [2023-11-06 22:52:58,826 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 1299 transitions. Word has length 79 [2023-11-06 22:52:58,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:52:58,827 INFO L495 AbstractCegarLoop]: Abstraction has 816 states and 1299 transitions. [2023-11-06 22:52:58,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-06 22:52:58,827 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 1299 transitions. [2023-11-06 22:52:58,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-06 22:52:58,828 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:52:58,828 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] [2023-11-06 22:52:58,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-06 22:52:58,829 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:52:58,829 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:52:58,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1601120289, now seen corresponding path program 1 times [2023-11-06 22:52:58,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:52:58,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272695725] [2023-11-06 22:52:58,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:52:58,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:52:58,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:59,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:52:59,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:59,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:52:59,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:59,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-06 22:52:59,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:59,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:52:59,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:59,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:52:59,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:59,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:52:59,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:59,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-06 22:52:59,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:59,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:52:59,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:59,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:52:59,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:52:59,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272695725] [2023-11-06 22:52:59,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272695725] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:52:59,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:52:59,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 22:52:59,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622754931] [2023-11-06 22:52:59,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:52:59,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:52:59,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:52:59,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:52:59,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:52:59,676 INFO L87 Difference]: Start difference. First operand 816 states and 1299 transitions. Second operand has 9 states, 8 states have (on average 7.875) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-06 22:53:09,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:53:09,064 INFO L93 Difference]: Finished difference Result 1781 states and 2885 transitions. [2023-11-06 22:53:09,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-06 22:53:09,065 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.875) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 80 [2023-11-06 22:53:09,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:53:09,073 INFO L225 Difference]: With dead ends: 1781 [2023-11-06 22:53:09,073 INFO L226 Difference]: Without dead ends: 1030 [2023-11-06 22:53:09,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2023-11-06 22:53:09,077 INFO L413 NwaCegarLoop]: 321 mSDtfsCounter, 735 mSDsluCounter, 1650 mSDsCounter, 0 mSdLazyCounter, 4790 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 818 SdHoareTripleChecker+Valid, 1971 SdHoareTripleChecker+Invalid, 4911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 4790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:53:09,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [818 Valid, 1971 Invalid, 4911 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [121 Valid, 4790 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2023-11-06 22:53:09,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2023-11-06 22:53:09,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 821. [2023-11-06 22:53:09,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 821 states, 645 states have (on average 1.5984496124031007) internal successors, (1031), 666 states have internal predecessors, (1031), 135 states have call successors, (135), 39 states have call predecessors, (135), 40 states have return successors, (138), 129 states have call predecessors, (138), 130 states have call successors, (138) [2023-11-06 22:53:09,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1304 transitions. [2023-11-06 22:53:09,376 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1304 transitions. Word has length 80 [2023-11-06 22:53:09,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:53:09,376 INFO L495 AbstractCegarLoop]: Abstraction has 821 states and 1304 transitions. [2023-11-06 22:53:09,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.875) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-06 22:53:09,377 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1304 transitions. [2023-11-06 22:53:09,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-06 22:53:09,379 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:53:09,379 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] [2023-11-06 22:53:09,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-06 22:53:09,379 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:53:09,380 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:53:09,380 INFO L85 PathProgramCache]: Analyzing trace with hash 923663657, now seen corresponding path program 1 times [2023-11-06 22:53:09,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:53:09,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040913871] [2023-11-06 22:53:09,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:53:09,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:53:09,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:09,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:53:09,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:09,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:53:09,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:09,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-06 22:53:09,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:10,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-06 22:53:10,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:10,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:53:10,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:10,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:53:10,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:10,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-06 22:53:10,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:10,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:53:10,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:10,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:53:10,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:53:10,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040913871] [2023-11-06 22:53:10,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040913871] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:53:10,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:53:10,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:53:10,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062642975] [2023-11-06 22:53:10,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:53:10,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:53:10,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:53:10,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:53:10,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:53:10,468 INFO L87 Difference]: Start difference. First operand 821 states and 1304 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 6 states have internal predecessors, (64), 5 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-06 22:53:23,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:53:23,087 INFO L93 Difference]: Finished difference Result 2859 states and 4725 transitions. [2023-11-06 22:53:23,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:53:23,088 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 6 states have internal predecessors, (64), 5 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) Word has length 81 [2023-11-06 22:53:23,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:53:23,103 INFO L225 Difference]: With dead ends: 2859 [2023-11-06 22:53:23,103 INFO L226 Difference]: Without dead ends: 2117 [2023-11-06 22:53:23,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:53:23,109 INFO L413 NwaCegarLoop]: 322 mSDtfsCounter, 4331 mSDsluCounter, 1092 mSDsCounter, 0 mSdLazyCounter, 2997 mSolverCounterSat, 1085 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4417 SdHoareTripleChecker+Valid, 1414 SdHoareTripleChecker+Invalid, 4082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1085 IncrementalHoareTripleChecker+Valid, 2997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2023-11-06 22:53:23,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4417 Valid, 1414 Invalid, 4082 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1085 Valid, 2997 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2023-11-06 22:53:23,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2117 states. [2023-11-06 22:53:23,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2117 to 1572. [2023-11-06 22:53:23,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1236 states have (on average 1.6189320388349515) internal successors, (2001), 1266 states have internal predecessors, (2001), 257 states have call successors, (257), 72 states have call predecessors, (257), 78 states have return successors, (277), 246 states have call predecessors, (277), 252 states have call successors, (277) [2023-11-06 22:53:23,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 2535 transitions. [2023-11-06 22:53:23,688 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 2535 transitions. Word has length 81 [2023-11-06 22:53:23,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:53:23,688 INFO L495 AbstractCegarLoop]: Abstraction has 1572 states and 2535 transitions. [2023-11-06 22:53:23,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 6 states have internal predecessors, (64), 5 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-06 22:53:23,688 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 2535 transitions. [2023-11-06 22:53:23,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-06 22:53:23,696 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:53:23,696 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:53:23,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-06 22:53:23,697 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:53:23,697 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:53:23,698 INFO L85 PathProgramCache]: Analyzing trace with hash -824116019, now seen corresponding path program 1 times [2023-11-06 22:53:23,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:53:23,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270305778] [2023-11-06 22:53:23,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:53:23,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:53:23,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:24,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:53:24,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:24,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:53:24,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:24,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-06 22:53:24,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:24,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-06 22:53:24,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:24,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:53:24,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:24,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:53:24,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:25,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:53:25,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:25,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:53:25,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:25,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:53:25,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:25,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-06 22:53:25,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:25,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-06 22:53:25,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:25,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:53:25,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:25,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:53:25,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:25,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:53:25,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:25,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-06 22:53:25,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:25,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-06 22:53:25,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:25,475 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-06 22:53:25,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:53:25,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270305778] [2023-11-06 22:53:25,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270305778] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:53:25,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:53:25,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-11-06 22:53:25,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514930333] [2023-11-06 22:53:25,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:53:25,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-06 22:53:25,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:53:25,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-06 22:53:25,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-11-06 22:53:25,479 INFO L87 Difference]: Start difference. First operand 1572 states and 2535 transitions. Second operand has 16 states, 16 states have (on average 5.8125) internal successors, (93), 9 states have internal predecessors, (93), 4 states have call successors, (16), 6 states have call predecessors, (16), 5 states have return successors, (15), 7 states have call predecessors, (15), 4 states have call successors, (15) [2023-11-06 22:53:40,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:53:40,927 INFO L93 Difference]: Finished difference Result 3669 states and 6190 transitions. [2023-11-06 22:53:40,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-06 22:53:40,928 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.8125) internal successors, (93), 9 states have internal predecessors, (93), 4 states have call successors, (16), 6 states have call predecessors, (16), 5 states have return successors, (15), 7 states have call predecessors, (15), 4 states have call successors, (15) Word has length 134 [2023-11-06 22:53:40,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:53:40,940 INFO L225 Difference]: With dead ends: 3669 [2023-11-06 22:53:40,940 INFO L226 Difference]: Without dead ends: 2175 [2023-11-06 22:53:40,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=188, Invalid=624, Unknown=0, NotChecked=0, Total=812 [2023-11-06 22:53:40,948 INFO L413 NwaCegarLoop]: 352 mSDtfsCounter, 2865 mSDsluCounter, 2462 mSDsCounter, 0 mSdLazyCounter, 8560 mSolverCounterSat, 945 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2865 SdHoareTripleChecker+Valid, 2814 SdHoareTripleChecker+Invalid, 9505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 945 IncrementalHoareTripleChecker+Valid, 8560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:53:40,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2865 Valid, 2814 Invalid, 9505 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [945 Valid, 8560 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time] [2023-11-06 22:53:40,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2175 states. [2023-11-06 22:53:41,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2175 to 1612. [2023-11-06 22:53:41,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1612 states, 1266 states have (on average 1.6042654028436019) internal successors, (2031), 1292 states have internal predecessors, (2031), 257 states have call successors, (257), 72 states have call predecessors, (257), 88 states have return successors, (355), 258 states have call predecessors, (355), 252 states have call successors, (355) [2023-11-06 22:53:41,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1612 states to 1612 states and 2643 transitions. [2023-11-06 22:53:41,635 INFO L78 Accepts]: Start accepts. Automaton has 1612 states and 2643 transitions. Word has length 134 [2023-11-06 22:53:41,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:53:41,636 INFO L495 AbstractCegarLoop]: Abstraction has 1612 states and 2643 transitions. [2023-11-06 22:53:41,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.8125) internal successors, (93), 9 states have internal predecessors, (93), 4 states have call successors, (16), 6 states have call predecessors, (16), 5 states have return successors, (15), 7 states have call predecessors, (15), 4 states have call successors, (15) [2023-11-06 22:53:41,636 INFO L276 IsEmpty]: Start isEmpty. Operand 1612 states and 2643 transitions. [2023-11-06 22:53:41,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-06 22:53:41,645 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:53:41,646 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:53:41,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-06 22:53:41,646 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:53:41,647 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:53:41,647 INFO L85 PathProgramCache]: Analyzing trace with hash 696513703, now seen corresponding path program 1 times [2023-11-06 22:53:41,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:53:41,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286106187] [2023-11-06 22:53:41,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:53:41,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:53:41,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:42,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:53:42,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:42,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:53:42,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:42,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-06 22:53:42,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:42,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-06 22:53:42,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:42,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:53:42,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:42,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:53:42,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:43,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:53:43,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:43,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:53:43,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:43,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:53:43,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:43,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:53:43,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:43,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-06 22:53:43,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:43,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:53:43,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:43,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:53:43,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:43,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-06 22:53:43,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:43,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-06 22:53:43,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:43,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-06 22:53:43,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:43,369 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-06 22:53:43,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:53:43,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286106187] [2023-11-06 22:53:43,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286106187] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:53:43,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:53:43,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-11-06 22:53:43,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077563443] [2023-11-06 22:53:43,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:53:43,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-06 22:53:43,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:53:43,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-06 22:53:43,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-11-06 22:53:43,374 INFO L87 Difference]: Start difference. First operand 1612 states and 2643 transitions. Second operand has 16 states, 16 states have (on average 5.875) internal successors, (94), 9 states have internal predecessors, (94), 4 states have call successors, (16), 6 states have call predecessors, (16), 5 states have return successors, (15), 7 states have call predecessors, (15), 4 states have call successors, (15) [2023-11-06 22:54:13,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:13,521 INFO L93 Difference]: Finished difference Result 5927 states and 10479 transitions. [2023-11-06 22:54:13,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-06 22:54:13,522 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.875) internal successors, (94), 9 states have internal predecessors, (94), 4 states have call successors, (16), 6 states have call predecessors, (16), 5 states have return successors, (15), 7 states have call predecessors, (15), 4 states have call successors, (15) Word has length 136 [2023-11-06 22:54:13,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:13,557 INFO L225 Difference]: With dead ends: 5927 [2023-11-06 22:54:13,557 INFO L226 Difference]: Without dead ends: 4393 [2023-11-06 22:54:13,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=342, Invalid=1380, Unknown=0, NotChecked=0, Total=1722 [2023-11-06 22:54:13,571 INFO L413 NwaCegarLoop]: 826 mSDtfsCounter, 5942 mSDsluCounter, 5709 mSDsCounter, 0 mSdLazyCounter, 17514 mSolverCounterSat, 1961 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5942 SdHoareTripleChecker+Valid, 6535 SdHoareTripleChecker+Invalid, 19475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1961 IncrementalHoareTripleChecker+Valid, 17514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.9s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:13,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5942 Valid, 6535 Invalid, 19475 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1961 Valid, 17514 Invalid, 0 Unknown, 0 Unchecked, 18.9s Time] [2023-11-06 22:54:13,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4393 states.