./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba7f1c9a-4670-4229-96ab-1c6feeff61d4/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba7f1c9a-4670-4229-96ab-1c6feeff61d4/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_ba7f1c9a-4670-4229-96ab-1c6feeff61d4/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba7f1c9a-4670-4229-96ab-1c6feeff61d4/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba7f1c9a-4670-4229-96ab-1c6feeff61d4/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_ba7f1c9a-4670-4229-96ab-1c6feeff61d4/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 5de8a6e48c671522e021c00f8053da339f3153b1fcc0b54263671efa3814086b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:44:20,783 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:44:20,886 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba7f1c9a-4670-4229-96ab-1c6feeff61d4/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 22:44:20,895 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:44:20,896 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:44:20,935 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:44:20,938 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:44:20,939 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:44:20,940 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:44:20,945 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:44:20,946 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:44:20,947 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:44:20,947 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:44:20,949 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:44:20,949 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:44:20,950 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:44:20,950 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:44:20,951 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:44:20,951 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:44:20,951 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:44:20,952 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:44:20,952 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:44:20,953 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:44:20,953 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:44:20,954 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:44:20,955 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:44:20,955 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:44:20,955 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:44:20,956 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:44:20,956 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:44:20,958 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:44:20,958 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:44:20,958 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:44:20,958 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:44:20,959 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:44:20,959 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:44:20,959 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:44:20,959 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:44:20,960 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:44:20,960 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_ba7f1c9a-4670-4229-96ab-1c6feeff61d4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba7f1c9a-4670-4229-96ab-1c6feeff61d4/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5de8a6e48c671522e021c00f8053da339f3153b1fcc0b54263671efa3814086b [2023-11-06 22:44:21,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:44:21,323 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:44:21,326 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:44:21,328 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:44:21,328 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:44:21,330 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba7f1c9a-4670-4229-96ab-1c6feeff61d4/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c [2023-11-06 22:44:24,362 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:44:24,884 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:44:24,885 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba7f1c9a-4670-4229-96ab-1c6feeff61d4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c [2023-11-06 22:44:24,919 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba7f1c9a-4670-4229-96ab-1c6feeff61d4/bin/uautomizer-verify-WvqO1wxjHP/data/4a1b8bcdc/f3d70a1c2c8441b5b581458cdbd2eec6/FLAGd9870d429 [2023-11-06 22:44:24,937 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba7f1c9a-4670-4229-96ab-1c6feeff61d4/bin/uautomizer-verify-WvqO1wxjHP/data/4a1b8bcdc/f3d70a1c2c8441b5b581458cdbd2eec6 [2023-11-06 22:44:24,945 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:44:24,947 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:44:24,952 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:44:24,953 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:44:24,959 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:44:24,960 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:44:24" (1/1) ... [2023-11-06 22:44:24,961 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8272005 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:24, skipping insertion in model container [2023-11-06 22:44:24,961 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:44:24" (1/1) ... [2023-11-06 22:44:25,121 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:44:25,431 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_ba7f1c9a-4670-4229-96ab-1c6feeff61d4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[8424,8437] [2023-11-06 22:44:25,466 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_ba7f1c9a-4670-4229-96ab-1c6feeff61d4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[12951,12964] [2023-11-06 22:44:25,513 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_ba7f1c9a-4670-4229-96ab-1c6feeff61d4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[20701,20714] [2023-11-06 22:44:25,570 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_ba7f1c9a-4670-4229-96ab-1c6feeff61d4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[27792,27805] [2023-11-06 22:44:25,692 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_ba7f1c9a-4670-4229-96ab-1c6feeff61d4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[49016,49029] [2023-11-06 22:44:25,834 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_ba7f1c9a-4670-4229-96ab-1c6feeff61d4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[80107,80120] [2023-11-06 22:44:26,092 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:44:26,116 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:44:26,177 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_ba7f1c9a-4670-4229-96ab-1c6feeff61d4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[8424,8437] [2023-11-06 22:44:26,192 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_ba7f1c9a-4670-4229-96ab-1c6feeff61d4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[12951,12964] [2023-11-06 22:44:26,225 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_ba7f1c9a-4670-4229-96ab-1c6feeff61d4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[20701,20714] [2023-11-06 22:44:26,256 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_ba7f1c9a-4670-4229-96ab-1c6feeff61d4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[27792,27805] [2023-11-06 22:44:26,319 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_ba7f1c9a-4670-4229-96ab-1c6feeff61d4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[49016,49029] [2023-11-06 22:44:26,399 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_ba7f1c9a-4670-4229-96ab-1c6feeff61d4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[80107,80120] [2023-11-06 22:44:26,525 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:44:26,565 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:44:26,566 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:26 WrapperNode [2023-11-06 22:44:26,566 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:44:26,568 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:44:26,568 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:44:26,568 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:44:26,577 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:26" (1/1) ... [2023-11-06 22:44:26,650 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:26" (1/1) ... [2023-11-06 22:44:26,797 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 6418 [2023-11-06 22:44:26,798 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:44:26,798 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:44:26,799 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:44:26,799 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:44:26,809 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:26" (1/1) ... [2023-11-06 22:44:26,809 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:26" (1/1) ... [2023-11-06 22:44:26,832 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:26" (1/1) ... [2023-11-06 22:44:26,833 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:26" (1/1) ... [2023-11-06 22:44:26,910 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:26" (1/1) ... [2023-11-06 22:44:26,941 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:26" (1/1) ... [2023-11-06 22:44:27,027 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:26" (1/1) ... [2023-11-06 22:44:27,038 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:26" (1/1) ... [2023-11-06 22:44:27,066 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:44:27,067 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:44:27,068 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:44:27,068 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:44:27,069 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:26" (1/1) ... [2023-11-06 22:44:27,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:44:27,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba7f1c9a-4670-4229-96ab-1c6feeff61d4/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:44:27,107 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba7f1c9a-4670-4229-96ab-1c6feeff61d4/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:44:27,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba7f1c9a-4670-4229-96ab-1c6feeff61d4/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:44:27,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:44:27,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:44:27,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:44:27,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:44:27,436 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:44:27,439 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:44:30,858 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:44:30,875 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:44:30,876 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:44:30,879 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:44:30 BoogieIcfgContainer [2023-11-06 22:44:30,880 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:44:30,882 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:44:30,882 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:44:30,886 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:44:30,886 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:44:24" (1/3) ... [2023-11-06 22:44:30,887 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63254ac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:44:30, skipping insertion in model container [2023-11-06 22:44:30,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:26" (2/3) ... [2023-11-06 22:44:30,888 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63254ac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:44:30, skipping insertion in model container [2023-11-06 22:44:30,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:44:30" (3/3) ... [2023-11-06 22:44:30,889 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c [2023-11-06 22:44:30,914 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:44:30,914 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-06 22:44:31,012 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:44:31,019 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;@4b406c45, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:44:31,019 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-06 22:44:31,032 INFO L276 IsEmpty]: Start isEmpty. Operand has 1290 states, 1283 states have (on average 1.7716289945440373) internal successors, (2273), 1289 states have internal predecessors, (2273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:31,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-06 22:44:31,057 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:44:31,058 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] [2023-11-06 22:44:31,058 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:44:31,064 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:31,064 INFO L85 PathProgramCache]: Analyzing trace with hash 692081489, now seen corresponding path program 1 times [2023-11-06 22:44:31,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:31,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36964779] [2023-11-06 22:44:31,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:31,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:31,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:31,761 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 22:44:31,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:31,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36964779] [2023-11-06 22:44:31,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36964779] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:44:31,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:44:31,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:44:31,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246656702] [2023-11-06 22:44:31,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:44:31,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:44:31,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:31,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:44:31,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:44:31,836 INFO L87 Difference]: Start difference. First operand has 1290 states, 1283 states have (on average 1.7716289945440373) internal successors, (2273), 1289 states have internal predecessors, (2273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:33,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:44:33,907 INFO L93 Difference]: Finished difference Result 2514 states and 4326 transitions. [2023-11-06 22:44:33,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:44:33,910 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2023-11-06 22:44:33,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:44:33,945 INFO L225 Difference]: With dead ends: 2514 [2023-11-06 22:44:33,945 INFO L226 Difference]: Without dead ends: 1590 [2023-11-06 22:44:33,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:44:33,961 INFO L413 NwaCegarLoop]: 1054 mSDtfsCounter, 7092 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7092 SdHoareTripleChecker+Valid, 1556 SdHoareTripleChecker+Invalid, 1274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-06 22:44:33,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7092 Valid, 1556 Invalid, 1274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1206 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-06 22:44:33,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1590 states. [2023-11-06 22:44:34,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1590 to 1584. [2023-11-06 22:44:34,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 1578 states have (on average 1.309252217997465) internal successors, (2066), 1583 states have internal predecessors, (2066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:34,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 2066 transitions. [2023-11-06 22:44:34,198 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 2066 transitions. Word has length 52 [2023-11-06 22:44:34,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:44:34,198 INFO L495 AbstractCegarLoop]: Abstraction has 1584 states and 2066 transitions. [2023-11-06 22:44:34,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:34,199 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 2066 transitions. [2023-11-06 22:44:34,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-06 22:44:34,204 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:44:34,204 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] [2023-11-06 22:44:34,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:44:34,205 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:44:34,206 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:34,206 INFO L85 PathProgramCache]: Analyzing trace with hash -736362272, now seen corresponding path program 1 times [2023-11-06 22:44:34,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:34,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69926799] [2023-11-06 22:44:34,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:34,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:34,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:34,514 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 22:44:34,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:34,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69926799] [2023-11-06 22:44:34,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69926799] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:44:34,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:44:34,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:44:34,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936638169] [2023-11-06 22:44:34,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:44:34,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:44:34,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:34,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:44:34,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:44:34,519 INFO L87 Difference]: Start difference. First operand 1584 states and 2066 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:35,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:44:35,969 INFO L93 Difference]: Finished difference Result 3198 states and 4201 transitions. [2023-11-06 22:44:35,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:44:35,970 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2023-11-06 22:44:35,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:44:35,985 INFO L225 Difference]: With dead ends: 3198 [2023-11-06 22:44:35,985 INFO L226 Difference]: Without dead ends: 2208 [2023-11-06 22:44:35,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:44:35,989 INFO L413 NwaCegarLoop]: 698 mSDtfsCounter, 4976 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 860 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4976 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:44:35,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4976 Valid, 1044 Invalid, 890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 860 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-06 22:44:35,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2208 states. [2023-11-06 22:44:36,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2208 to 2194. [2023-11-06 22:44:36,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2194 states, 2188 states have (on average 1.3194698354661791) internal successors, (2887), 2193 states have internal predecessors, (2887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:36,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2194 states to 2194 states and 2887 transitions. [2023-11-06 22:44:36,188 INFO L78 Accepts]: Start accepts. Automaton has 2194 states and 2887 transitions. Word has length 53 [2023-11-06 22:44:36,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:44:36,189 INFO L495 AbstractCegarLoop]: Abstraction has 2194 states and 2887 transitions. [2023-11-06 22:44:36,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:36,189 INFO L276 IsEmpty]: Start isEmpty. Operand 2194 states and 2887 transitions. [2023-11-06 22:44:36,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-06 22:44:36,196 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:44:36,196 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] [2023-11-06 22:44:36,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:44:36,197 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:44:36,207 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:36,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1386389066, now seen corresponding path program 1 times [2023-11-06 22:44:36,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:36,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007377768] [2023-11-06 22:44:36,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:36,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:36,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:36,446 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 22:44:36,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:36,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007377768] [2023-11-06 22:44:36,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007377768] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:44:36,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:44:36,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:44:36,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853899945] [2023-11-06 22:44:36,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:44:36,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:44:36,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:36,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:44:36,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:44:36,455 INFO L87 Difference]: Start difference. First operand 2194 states and 2887 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:37,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:44:37,742 INFO L93 Difference]: Finished difference Result 4499 states and 5989 transitions. [2023-11-06 22:44:37,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:44:37,743 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2023-11-06 22:44:37,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:44:37,764 INFO L225 Difference]: With dead ends: 4499 [2023-11-06 22:44:37,764 INFO L226 Difference]: Without dead ends: 3072 [2023-11-06 22:44:37,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:44:37,768 INFO L413 NwaCegarLoop]: 624 mSDtfsCounter, 4462 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 782 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4462 SdHoareTripleChecker+Valid, 932 SdHoareTripleChecker+Invalid, 813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:44:37,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4462 Valid, 932 Invalid, 813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 782 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-06 22:44:37,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3072 states. [2023-11-06 22:44:38,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3072 to 3062. [2023-11-06 22:44:38,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3062 states, 3056 states have (on average 1.3236256544502618) internal successors, (4045), 3061 states have internal predecessors, (4045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:38,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3062 states to 3062 states and 4045 transitions. [2023-11-06 22:44:38,074 INFO L78 Accepts]: Start accepts. Automaton has 3062 states and 4045 transitions. Word has length 53 [2023-11-06 22:44:38,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:44:38,075 INFO L495 AbstractCegarLoop]: Abstraction has 3062 states and 4045 transitions. [2023-11-06 22:44:38,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:38,075 INFO L276 IsEmpty]: Start isEmpty. Operand 3062 states and 4045 transitions. [2023-11-06 22:44:38,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-06 22:44:38,080 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:44:38,080 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] [2023-11-06 22:44:38,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:44:38,081 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:44:38,081 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:38,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1763239895, now seen corresponding path program 1 times [2023-11-06 22:44:38,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:38,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655012316] [2023-11-06 22:44:38,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:38,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:38,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:38,560 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 22:44:38,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:38,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655012316] [2023-11-06 22:44:38,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655012316] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:44:38,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:44:38,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:44:38,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646236192] [2023-11-06 22:44:38,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:44:38,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:44:38,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:38,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:44:38,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:44:38,570 INFO L87 Difference]: Start difference. First operand 3062 states and 4045 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:41,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:44:41,283 INFO L93 Difference]: Finished difference Result 6211 states and 8701 transitions. [2023-11-06 22:44:41,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 22:44:41,284 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2023-11-06 22:44:41,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:44:41,317 INFO L225 Difference]: With dead ends: 6211 [2023-11-06 22:44:41,317 INFO L226 Difference]: Without dead ends: 5507 [2023-11-06 22:44:41,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2023-11-06 22:44:41,321 INFO L413 NwaCegarLoop]: 668 mSDtfsCounter, 4668 mSDsluCounter, 2181 mSDsCounter, 0 mSdLazyCounter, 2303 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4668 SdHoareTripleChecker+Valid, 2849 SdHoareTripleChecker+Invalid, 2313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-06 22:44:41,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4668 Valid, 2849 Invalid, 2313 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 2303 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-06 22:44:41,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5507 states. [2023-11-06 22:44:41,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5507 to 3062. [2023-11-06 22:44:41,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3062 states, 3056 states have (on average 1.3232984293193717) internal successors, (4044), 3061 states have internal predecessors, (4044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:41,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3062 states to 3062 states and 4044 transitions. [2023-11-06 22:44:41,699 INFO L78 Accepts]: Start accepts. Automaton has 3062 states and 4044 transitions. Word has length 55 [2023-11-06 22:44:41,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:44:41,699 INFO L495 AbstractCegarLoop]: Abstraction has 3062 states and 4044 transitions. [2023-11-06 22:44:41,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:41,700 INFO L276 IsEmpty]: Start isEmpty. Operand 3062 states and 4044 transitions. [2023-11-06 22:44:41,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-06 22:44:41,703 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:44:41,704 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] [2023-11-06 22:44:41,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:44:41,704 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:44:41,705 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:41,705 INFO L85 PathProgramCache]: Analyzing trace with hash 622296368, now seen corresponding path program 1 times [2023-11-06 22:44:41,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:41,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259641471] [2023-11-06 22:44:41,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:41,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:41,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:42,134 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 22:44:42,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:42,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259641471] [2023-11-06 22:44:42,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259641471] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:44:42,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:44:42,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:44:42,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346656852] [2023-11-06 22:44:42,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:44:42,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:44:42,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:42,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:44:42,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:44:42,138 INFO L87 Difference]: Start difference. First operand 3062 states and 4044 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:46,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:44:46,139 INFO L93 Difference]: Finished difference Result 6227 states and 8541 transitions. [2023-11-06 22:44:46,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-06 22:44:46,139 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2023-11-06 22:44:46,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:44:46,171 INFO L225 Difference]: With dead ends: 6227 [2023-11-06 22:44:46,171 INFO L226 Difference]: Without dead ends: 5657 [2023-11-06 22:44:46,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2023-11-06 22:44:46,175 INFO L413 NwaCegarLoop]: 756 mSDtfsCounter, 6067 mSDsluCounter, 3328 mSDsCounter, 0 mSdLazyCounter, 4024 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6067 SdHoareTripleChecker+Valid, 4084 SdHoareTripleChecker+Invalid, 4082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 4024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-06 22:44:46,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6067 Valid, 4084 Invalid, 4082 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [58 Valid, 4024 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-06 22:44:46,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5657 states. [2023-11-06 22:44:46,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5657 to 3062. [2023-11-06 22:44:46,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3062 states, 3056 states have (on average 1.3229712041884816) internal successors, (4043), 3061 states have internal predecessors, (4043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:46,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3062 states to 3062 states and 4043 transitions. [2023-11-06 22:44:46,676 INFO L78 Accepts]: Start accepts. Automaton has 3062 states and 4043 transitions. Word has length 55 [2023-11-06 22:44:46,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:44:46,679 INFO L495 AbstractCegarLoop]: Abstraction has 3062 states and 4043 transitions. [2023-11-06 22:44:46,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:46,679 INFO L276 IsEmpty]: Start isEmpty. Operand 3062 states and 4043 transitions. [2023-11-06 22:44:46,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-06 22:44:46,683 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:44:46,683 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] [2023-11-06 22:44:46,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:44:46,684 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:44:46,684 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:46,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1268497001, now seen corresponding path program 1 times [2023-11-06 22:44:46,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:46,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105399248] [2023-11-06 22:44:46,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:46,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:46,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:47,070 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 22:44:47,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:47,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105399248] [2023-11-06 22:44:47,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105399248] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:44:47,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:44:47,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:44:47,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815591905] [2023-11-06 22:44:47,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:44:47,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:44:47,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:47,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:44:47,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:44:47,074 INFO L87 Difference]: Start difference. First operand 3062 states and 4043 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:50,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:44:50,778 INFO L93 Difference]: Finished difference Result 5701 states and 7865 transitions. [2023-11-06 22:44:50,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-06 22:44:50,779 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2023-11-06 22:44:50,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:44:50,812 INFO L225 Difference]: With dead ends: 5701 [2023-11-06 22:44:50,812 INFO L226 Difference]: Without dead ends: 5695 [2023-11-06 22:44:50,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2023-11-06 22:44:50,815 INFO L413 NwaCegarLoop]: 692 mSDtfsCounter, 4473 mSDsluCounter, 2920 mSDsCounter, 0 mSdLazyCounter, 3088 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4473 SdHoareTripleChecker+Valid, 3612 SdHoareTripleChecker+Invalid, 3124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 3088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:44:50,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4473 Valid, 3612 Invalid, 3124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 3088 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-06 22:44:50,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5695 states. [2023-11-06 22:44:51,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5695 to 3062. [2023-11-06 22:44:51,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3062 states, 3056 states have (on average 1.3226439790575917) internal successors, (4042), 3061 states have internal predecessors, (4042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:51,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3062 states to 3062 states and 4042 transitions. [2023-11-06 22:44:51,340 INFO L78 Accepts]: Start accepts. Automaton has 3062 states and 4042 transitions. Word has length 55 [2023-11-06 22:44:51,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:44:51,341 INFO L495 AbstractCegarLoop]: Abstraction has 3062 states and 4042 transitions. [2023-11-06 22:44:51,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:51,341 INFO L276 IsEmpty]: Start isEmpty. Operand 3062 states and 4042 transitions. [2023-11-06 22:44:51,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-06 22:44:51,345 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:44:51,345 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] [2023-11-06 22:44:51,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:44:51,346 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:44:51,346 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:51,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1662572980, now seen corresponding path program 1 times [2023-11-06 22:44:51,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:51,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840834456] [2023-11-06 22:44:51,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:51,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:51,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:51,449 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 22:44:51,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:51,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840834456] [2023-11-06 22:44:51,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840834456] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:44:51,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:44:51,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:44:51,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109668307] [2023-11-06 22:44:51,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:44:51,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:44:51,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:51,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:44:51,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:44:51,455 INFO L87 Difference]: Start difference. First operand 3062 states and 4042 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:52,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:44:52,172 INFO L93 Difference]: Finished difference Result 4018 states and 5491 transitions. [2023-11-06 22:44:52,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:44:52,173 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2023-11-06 22:44:52,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:44:52,205 INFO L225 Difference]: With dead ends: 4018 [2023-11-06 22:44:52,212 INFO L226 Difference]: Without dead ends: 3081 [2023-11-06 22:44:52,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:44:52,216 INFO L413 NwaCegarLoop]: 1186 mSDtfsCounter, 579 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:44:52,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 1790 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:44:52,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3081 states. [2023-11-06 22:44:52,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3081 to 3079. [2023-11-06 22:44:52,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3079 states, 3073 states have (on average 1.33875691506671) internal successors, (4114), 3078 states have internal predecessors, (4114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:52,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3079 states to 3079 states and 4114 transitions. [2023-11-06 22:44:52,786 INFO L78 Accepts]: Start accepts. Automaton has 3079 states and 4114 transitions. Word has length 56 [2023-11-06 22:44:52,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:44:52,786 INFO L495 AbstractCegarLoop]: Abstraction has 3079 states and 4114 transitions. [2023-11-06 22:44:52,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:52,787 INFO L276 IsEmpty]: Start isEmpty. Operand 3079 states and 4114 transitions. [2023-11-06 22:44:52,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-06 22:44:52,790 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:44:52,790 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] [2023-11-06 22:44:52,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:44:52,791 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:44:52,791 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:52,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1775531576, now seen corresponding path program 1 times [2023-11-06 22:44:52,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:52,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153645379] [2023-11-06 22:44:52,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:52,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:52,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:52,900 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 22:44:52,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:52,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153645379] [2023-11-06 22:44:52,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153645379] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:44:52,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:44:52,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:44:52,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009508571] [2023-11-06 22:44:52,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:44:52,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:44:52,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:52,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:44:52,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:44:52,905 INFO L87 Difference]: Start difference. First operand 3079 states and 4114 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:53,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:44:53,762 INFO L93 Difference]: Finished difference Result 4753 states and 6649 transitions. [2023-11-06 22:44:53,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:44:53,762 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2023-11-06 22:44:53,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:44:53,771 INFO L225 Difference]: With dead ends: 4753 [2023-11-06 22:44:53,771 INFO L226 Difference]: Without dead ends: 3509 [2023-11-06 22:44:53,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:44:53,776 INFO L413 NwaCegarLoop]: 1145 mSDtfsCounter, 587 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 1728 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:44:53,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [587 Valid, 1728 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:44:53,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3509 states. [2023-11-06 22:44:54,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3509 to 3507. [2023-11-06 22:44:54,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3507 states, 3501 states have (on average 1.3701799485861184) internal successors, (4797), 3506 states have internal predecessors, (4797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:54,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3507 states to 3507 states and 4797 transitions. [2023-11-06 22:44:54,473 INFO L78 Accepts]: Start accepts. Automaton has 3507 states and 4797 transitions. Word has length 56 [2023-11-06 22:44:54,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:44:54,474 INFO L495 AbstractCegarLoop]: Abstraction has 3507 states and 4797 transitions. [2023-11-06 22:44:54,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:54,474 INFO L276 IsEmpty]: Start isEmpty. Operand 3507 states and 4797 transitions. [2023-11-06 22:44:54,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-06 22:44:54,478 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:44:54,478 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] [2023-11-06 22:44:54,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 22:44:54,478 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:44:54,479 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:54,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1498951000, now seen corresponding path program 1 times [2023-11-06 22:44:54,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:54,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670323308] [2023-11-06 22:44:54,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:54,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:54,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:54,578 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 22:44:54,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:54,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670323308] [2023-11-06 22:44:54,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670323308] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:44:54,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:44:54,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:44:54,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779919864] [2023-11-06 22:44:54,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:44:54,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:44:54,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:54,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:44:54,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:44:54,581 INFO L87 Difference]: Start difference. First operand 3507 states and 4797 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:55,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:44:55,636 INFO L93 Difference]: Finished difference Result 7489 states and 10501 transitions. [2023-11-06 22:44:55,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:44:55,636 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2023-11-06 22:44:55,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:44:55,647 INFO L225 Difference]: With dead ends: 7489 [2023-11-06 22:44:55,647 INFO L226 Difference]: Without dead ends: 5080 [2023-11-06 22:44:55,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:44:55,653 INFO L413 NwaCegarLoop]: 1215 mSDtfsCounter, 657 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 1963 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:44:55,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [657 Valid, 1963 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:44:55,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5080 states. [2023-11-06 22:44:56,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5080 to 5074. [2023-11-06 22:44:56,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5074 states, 5068 states have (on average 1.3681925808997633) internal successors, (6934), 5073 states have internal predecessors, (6934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:56,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5074 states to 5074 states and 6934 transitions. [2023-11-06 22:44:56,527 INFO L78 Accepts]: Start accepts. Automaton has 5074 states and 6934 transitions. Word has length 56 [2023-11-06 22:44:56,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:44:56,527 INFO L495 AbstractCegarLoop]: Abstraction has 5074 states and 6934 transitions. [2023-11-06 22:44:56,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:56,528 INFO L276 IsEmpty]: Start isEmpty. Operand 5074 states and 6934 transitions. [2023-11-06 22:44:56,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-06 22:44:56,532 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:44:56,532 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] [2023-11-06 22:44:56,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 22:44:56,533 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:44:56,533 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:56,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1118792296, now seen corresponding path program 1 times [2023-11-06 22:44:56,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:56,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501274311] [2023-11-06 22:44:56,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:56,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:56,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:57,391 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 22:44:57,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:57,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501274311] [2023-11-06 22:44:57,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501274311] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:44:57,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:44:57,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-06 22:44:57,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945196986] [2023-11-06 22:44:57,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:44:57,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 22:44:57,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:57,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 22:44:57,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:44:57,395 INFO L87 Difference]: Start difference. First operand 5074 states and 6934 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:02,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:45:02,739 INFO L93 Difference]: Finished difference Result 10867 states and 15130 transitions. [2023-11-06 22:45:02,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-06 22:45:02,739 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2023-11-06 22:45:02,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:45:02,762 INFO L225 Difference]: With dead ends: 10867 [2023-11-06 22:45:02,763 INFO L226 Difference]: Without dead ends: 10804 [2023-11-06 22:45:02,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2023-11-06 22:45:02,766 INFO L413 NwaCegarLoop]: 1168 mSDtfsCounter, 7552 mSDsluCounter, 5428 mSDsCounter, 0 mSdLazyCounter, 1793 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7552 SdHoareTripleChecker+Valid, 6596 SdHoareTripleChecker+Invalid, 1833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-06 22:45:02,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7552 Valid, 6596 Invalid, 1833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1793 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-06 22:45:02,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10804 states. [2023-11-06 22:45:04,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10804 to 5061. [2023-11-06 22:45:04,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5061 states, 5056 states have (on average 1.3684731012658229) internal successors, (6919), 5060 states have internal predecessors, (6919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:04,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5061 states to 5061 states and 6919 transitions. [2023-11-06 22:45:04,219 INFO L78 Accepts]: Start accepts. Automaton has 5061 states and 6919 transitions. Word has length 57 [2023-11-06 22:45:04,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:45:04,220 INFO L495 AbstractCegarLoop]: Abstraction has 5061 states and 6919 transitions. [2023-11-06 22:45:04,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:04,220 INFO L276 IsEmpty]: Start isEmpty. Operand 5061 states and 6919 transitions. [2023-11-06 22:45:04,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-06 22:45:04,224 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:45:04,224 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] [2023-11-06 22:45:04,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 22:45:04,224 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:45:04,225 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:45:04,225 INFO L85 PathProgramCache]: Analyzing trace with hash -677466950, now seen corresponding path program 1 times [2023-11-06 22:45:04,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:45:04,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036562869] [2023-11-06 22:45:04,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:45:04,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:45:04,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:04,314 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 22:45:04,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:45:04,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036562869] [2023-11-06 22:45:04,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036562869] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:45:04,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:45:04,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:45:04,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864351291] [2023-11-06 22:45:04,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:45:04,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:45:04,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:45:04,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:45:04,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:45:04,317 INFO L87 Difference]: Start difference. First operand 5061 states and 6919 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:05,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:45:05,796 INFO L93 Difference]: Finished difference Result 9491 states and 13200 transitions. [2023-11-06 22:45:05,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:45:05,796 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2023-11-06 22:45:05,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:45:05,808 INFO L225 Difference]: With dead ends: 9491 [2023-11-06 22:45:05,809 INFO L226 Difference]: Without dead ends: 5440 [2023-11-06 22:45:05,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:45:05,815 INFO L413 NwaCegarLoop]: 826 mSDtfsCounter, 820 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 820 SdHoareTripleChecker+Valid, 1221 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:45:05,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [820 Valid, 1221 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:45:05,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5440 states. [2023-11-06 22:45:07,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5440 to 4347. [2023-11-06 22:45:07,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4347 states, 4343 states have (on average 1.3845268247755007) internal successors, (6013), 4346 states have internal predecessors, (6013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:07,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4347 states to 4347 states and 6013 transitions. [2023-11-06 22:45:07,104 INFO L78 Accepts]: Start accepts. Automaton has 4347 states and 6013 transitions. Word has length 57 [2023-11-06 22:45:07,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:45:07,105 INFO L495 AbstractCegarLoop]: Abstraction has 4347 states and 6013 transitions. [2023-11-06 22:45:07,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:07,106 INFO L276 IsEmpty]: Start isEmpty. Operand 4347 states and 6013 transitions. [2023-11-06 22:45:07,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-06 22:45:07,114 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:45:07,114 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] [2023-11-06 22:45:07,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-06 22:45:07,115 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:45:07,115 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:45:07,115 INFO L85 PathProgramCache]: Analyzing trace with hash -611117000, now seen corresponding path program 1 times [2023-11-06 22:45:07,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:45:07,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714944070] [2023-11-06 22:45:07,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:45:07,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:45:07,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:07,184 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 22:45:07,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:45:07,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714944070] [2023-11-06 22:45:07,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714944070] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:45:07,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:45:07,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:45:07,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979955685] [2023-11-06 22:45:07,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:45:07,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:45:07,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:45:07,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:45:07,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:45:07,187 INFO L87 Difference]: Start difference. First operand 4347 states and 6013 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:09,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:45:09,093 INFO L93 Difference]: Finished difference Result 8377 states and 11806 transitions. [2023-11-06 22:45:09,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:45:09,094 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2023-11-06 22:45:09,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:45:09,104 INFO L225 Difference]: With dead ends: 8377 [2023-11-06 22:45:09,104 INFO L226 Difference]: Without dead ends: 4765 [2023-11-06 22:45:09,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:45:09,111 INFO L413 NwaCegarLoop]: 697 mSDtfsCounter, 638 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:45:09,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [638 Valid, 1002 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:45:09,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4765 states. [2023-11-06 22:45:10,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4765 to 3818. [2023-11-06 22:45:10,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3818 states, 3815 states have (on average 1.397640891218873) internal successors, (5332), 3817 states have internal predecessors, (5332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:10,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3818 states to 3818 states and 5332 transitions. [2023-11-06 22:45:10,247 INFO L78 Accepts]: Start accepts. Automaton has 3818 states and 5332 transitions. Word has length 57 [2023-11-06 22:45:10,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:45:10,248 INFO L495 AbstractCegarLoop]: Abstraction has 3818 states and 5332 transitions. [2023-11-06 22:45:10,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:10,248 INFO L276 IsEmpty]: Start isEmpty. Operand 3818 states and 5332 transitions. [2023-11-06 22:45:10,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-06 22:45:10,250 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:45:10,251 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] [2023-11-06 22:45:10,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-06 22:45:10,251 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:45:10,252 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:45:10,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1274837938, now seen corresponding path program 1 times [2023-11-06 22:45:10,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:45:10,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751617784] [2023-11-06 22:45:10,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:45:10,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:45:10,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:10,313 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 22:45:10,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:45:10,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751617784] [2023-11-06 22:45:10,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751617784] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:45:10,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:45:10,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:45:10,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167844682] [2023-11-06 22:45:10,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:45:10,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:45:10,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:45:10,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:45:10,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:45:10,316 INFO L87 Difference]: Start difference. First operand 3818 states and 5332 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:12,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:45:12,095 INFO L93 Difference]: Finished difference Result 7682 states and 10899 transitions. [2023-11-06 22:45:12,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:45:12,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2023-11-06 22:45:12,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:45:12,104 INFO L225 Difference]: With dead ends: 7682 [2023-11-06 22:45:12,104 INFO L226 Difference]: Without dead ends: 4206 [2023-11-06 22:45:12,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:45:12,110 INFO L413 NwaCegarLoop]: 643 mSDtfsCounter, 549 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:45:12,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [549 Valid, 904 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:45:12,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4206 states. [2023-11-06 22:45:13,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4206 to 3371. [2023-11-06 22:45:13,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3371 states, 3368 states have (on average 1.4133016627078385) internal successors, (4760), 3370 states have internal predecessors, (4760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:13,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3371 states to 3371 states and 4760 transitions. [2023-11-06 22:45:13,122 INFO L78 Accepts]: Start accepts. Automaton has 3371 states and 4760 transitions. Word has length 57 [2023-11-06 22:45:13,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:45:13,122 INFO L495 AbstractCegarLoop]: Abstraction has 3371 states and 4760 transitions. [2023-11-06 22:45:13,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:13,123 INFO L276 IsEmpty]: Start isEmpty. Operand 3371 states and 4760 transitions. [2023-11-06 22:45:13,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-06 22:45:13,124 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:45:13,125 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] [2023-11-06 22:45:13,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-06 22:45:13,125 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:45:13,125 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:45:13,126 INFO L85 PathProgramCache]: Analyzing trace with hash -410378211, now seen corresponding path program 1 times [2023-11-06 22:45:13,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:45:13,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858342290] [2023-11-06 22:45:13,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:45:13,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:45:13,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:13,829 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 22:45:13,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:45:13,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858342290] [2023-11-06 22:45:13,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858342290] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:45:13,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:45:13,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-06 22:45:13,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330082155] [2023-11-06 22:45:13,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:45:13,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 22:45:13,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:45:13,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 22:45:13,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:45:13,831 INFO L87 Difference]: Start difference. First operand 3371 states and 4760 transitions. Second operand has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:18,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:45:18,442 INFO L93 Difference]: Finished difference Result 7181 states and 10145 transitions. [2023-11-06 22:45:18,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-06 22:45:18,443 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2023-11-06 22:45:18,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:45:18,452 INFO L225 Difference]: With dead ends: 7181 [2023-11-06 22:45:18,452 INFO L226 Difference]: Without dead ends: 7102 [2023-11-06 22:45:18,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=230, Invalid=582, Unknown=0, NotChecked=0, Total=812 [2023-11-06 22:45:18,455 INFO L413 NwaCegarLoop]: 1109 mSDtfsCounter, 3350 mSDsluCounter, 4949 mSDsCounter, 0 mSdLazyCounter, 1324 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3350 SdHoareTripleChecker+Valid, 6058 SdHoareTripleChecker+Invalid, 1340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:45:18,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3350 Valid, 6058 Invalid, 1340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1324 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-06 22:45:18,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7102 states. [2023-11-06 22:45:19,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7102 to 3342. [2023-11-06 22:45:19,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3342 states, 3340 states have (on average 1.414071856287425) internal successors, (4723), 3341 states have internal predecessors, (4723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:19,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3342 states to 3342 states and 4723 transitions. [2023-11-06 22:45:19,378 INFO L78 Accepts]: Start accepts. Automaton has 3342 states and 4723 transitions. Word has length 58 [2023-11-06 22:45:19,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:45:19,378 INFO L495 AbstractCegarLoop]: Abstraction has 3342 states and 4723 transitions. [2023-11-06 22:45:19,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:19,379 INFO L276 IsEmpty]: Start isEmpty. Operand 3342 states and 4723 transitions. [2023-11-06 22:45:19,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-06 22:45:19,381 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:45:19,381 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] [2023-11-06 22:45:19,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-06 22:45:19,381 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:45:19,382 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:45:19,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1645651769, now seen corresponding path program 1 times [2023-11-06 22:45:19,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:45:19,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419210389] [2023-11-06 22:45:19,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:45:19,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:45:19,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:20,526 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 22:45:20,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:45:20,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419210389] [2023-11-06 22:45:20,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419210389] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:45:20,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:45:20,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-11-06 22:45:20,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63513117] [2023-11-06 22:45:20,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:45:20,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-06 22:45:20,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:45:20,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-06 22:45:20,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2023-11-06 22:45:20,529 INFO L87 Difference]: Start difference. First operand 3342 states and 4723 transitions. Second operand has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:26,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:45:26,081 INFO L93 Difference]: Finished difference Result 6478 states and 9154 transitions. [2023-11-06 22:45:26,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-06 22:45:26,081 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2023-11-06 22:45:26,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:45:26,088 INFO L225 Difference]: With dead ends: 6478 [2023-11-06 22:45:26,089 INFO L226 Difference]: Without dead ends: 6474 [2023-11-06 22:45:26,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=234, Invalid=888, Unknown=0, NotChecked=0, Total=1122 [2023-11-06 22:45:26,091 INFO L413 NwaCegarLoop]: 667 mSDtfsCounter, 3479 mSDsluCounter, 8238 mSDsCounter, 0 mSdLazyCounter, 3186 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3479 SdHoareTripleChecker+Valid, 8905 SdHoareTripleChecker+Invalid, 3200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 3186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:45:26,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3479 Valid, 8905 Invalid, 3200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 3186 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-06 22:45:26,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6474 states. [2023-11-06 22:45:27,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6474 to 3350. [2023-11-06 22:45:27,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3350 states, 3348 states have (on average 1.4136798088410991) internal successors, (4733), 3349 states have internal predecessors, (4733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:27,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3350 states to 3350 states and 4733 transitions. [2023-11-06 22:45:27,134 INFO L78 Accepts]: Start accepts. Automaton has 3350 states and 4733 transitions. Word has length 58 [2023-11-06 22:45:27,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:45:27,135 INFO L495 AbstractCegarLoop]: Abstraction has 3350 states and 4733 transitions. [2023-11-06 22:45:27,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:27,135 INFO L276 IsEmpty]: Start isEmpty. Operand 3350 states and 4733 transitions. [2023-11-06 22:45:27,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-06 22:45:27,136 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:45:27,136 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] [2023-11-06 22:45:27,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-06 22:45:27,137 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:45:27,137 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:45:27,137 INFO L85 PathProgramCache]: Analyzing trace with hash 3906094, now seen corresponding path program 1 times [2023-11-06 22:45:27,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:45:27,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206801030] [2023-11-06 22:45:27,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:45:27,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:45:27,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:28,077 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 22:45:28,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:45:28,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206801030] [2023-11-06 22:45:28,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206801030] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:45:28,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:45:28,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-11-06 22:45:28,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651285072] [2023-11-06 22:45:28,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:45:28,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-06 22:45:28,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:45:28,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-06 22:45:28,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-11-06 22:45:28,080 INFO L87 Difference]: Start difference. First operand 3350 states and 4733 transitions. Second operand has 16 states, 16 states have (on average 3.6875) internal successors, (59), 16 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:33,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:45:33,438 INFO L93 Difference]: Finished difference Result 6400 states and 9052 transitions. [2023-11-06 22:45:33,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-06 22:45:33,438 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.6875) internal successors, (59), 16 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2023-11-06 22:45:33,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:45:33,446 INFO L225 Difference]: With dead ends: 6400 [2023-11-06 22:45:33,447 INFO L226 Difference]: Without dead ends: 6396 [2023-11-06 22:45:33,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=192, Invalid=678, Unknown=0, NotChecked=0, Total=870 [2023-11-06 22:45:33,449 INFO L413 NwaCegarLoop]: 673 mSDtfsCounter, 4285 mSDsluCounter, 6208 mSDsCounter, 0 mSdLazyCounter, 2332 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4285 SdHoareTripleChecker+Valid, 6881 SdHoareTripleChecker+Invalid, 2345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-06 22:45:33,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4285 Valid, 6881 Invalid, 2345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2332 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-06 22:45:33,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6396 states. [2023-11-06 22:45:34,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6396 to 3338. [2023-11-06 22:45:34,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3338 states, 3337 states have (on average 1.4141444411147737) internal successors, (4719), 3337 states have internal predecessors, (4719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:34,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3338 states to 3338 states and 4719 transitions. [2023-11-06 22:45:34,669 INFO L78 Accepts]: Start accepts. Automaton has 3338 states and 4719 transitions. Word has length 59 [2023-11-06 22:45:34,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:45:34,669 INFO L495 AbstractCegarLoop]: Abstraction has 3338 states and 4719 transitions. [2023-11-06 22:45:34,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.6875) internal successors, (59), 16 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:34,670 INFO L276 IsEmpty]: Start isEmpty. Operand 3338 states and 4719 transitions. [2023-11-06 22:45:34,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-06 22:45:34,673 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:45:34,673 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 22:45:34,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-06 22:45:34,673 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:45:34,674 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:45:34,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1327663405, now seen corresponding path program 1 times [2023-11-06 22:45:34,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:45:34,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498853877] [2023-11-06 22:45:34,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:45:34,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:45:34,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:34,818 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 22:45:34,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:45:34,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498853877] [2023-11-06 22:45:34,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498853877] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:45:34,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:45:34,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:45:34,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628332892] [2023-11-06 22:45:34,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:45:34,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:45:34,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:45:34,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:45:34,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:45:34,821 INFO L87 Difference]: Start difference. First operand 3338 states and 4719 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:37,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:45:37,625 INFO L93 Difference]: Finished difference Result 10456 states and 15113 transitions. [2023-11-06 22:45:37,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:45:37,625 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-11-06 22:45:37,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:45:37,633 INFO L225 Difference]: With dead ends: 10456 [2023-11-06 22:45:37,633 INFO L226 Difference]: Without dead ends: 7670 [2023-11-06 22:45:37,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:45:37,639 INFO L413 NwaCegarLoop]: 540 mSDtfsCounter, 1582 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1582 SdHoareTripleChecker+Valid, 1111 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:45:37,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1582 Valid, 1111 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:45:37,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7670 states. [2023-11-06 22:45:39,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7670 to 5814. [2023-11-06 22:45:39,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5814 states, 5813 states have (on average 1.4132117667297437) internal successors, (8215), 5813 states have internal predecessors, (8215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:39,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5814 states to 5814 states and 8215 transitions. [2023-11-06 22:45:39,776 INFO L78 Accepts]: Start accepts. Automaton has 5814 states and 8215 transitions. Word has length 66 [2023-11-06 22:45:39,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:45:39,777 INFO L495 AbstractCegarLoop]: Abstraction has 5814 states and 8215 transitions. [2023-11-06 22:45:39,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:39,777 INFO L276 IsEmpty]: Start isEmpty. Operand 5814 states and 8215 transitions. [2023-11-06 22:45:39,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-06 22:45:39,780 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:45:39,780 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 22:45:39,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-06 22:45:39,781 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:45:39,781 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:45:39,781 INFO L85 PathProgramCache]: Analyzing trace with hash -2106166862, now seen corresponding path program 1 times [2023-11-06 22:45:39,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:45:39,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979165153] [2023-11-06 22:45:39,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:45:39,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:45:39,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:39,910 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 22:45:39,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:45:39,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979165153] [2023-11-06 22:45:39,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979165153] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:45:39,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:45:39,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:45:39,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235999294] [2023-11-06 22:45:39,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:45:39,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:45:39,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:45:39,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:45:39,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:45:39,913 INFO L87 Difference]: Start difference. First operand 5814 states and 8215 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:42,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:45:42,187 INFO L93 Difference]: Finished difference Result 9120 states and 12934 transitions. [2023-11-06 22:45:42,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:45:42,187 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2023-11-06 22:45:42,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:45:42,191 INFO L225 Difference]: With dead ends: 9120 [2023-11-06 22:45:42,191 INFO L226 Difference]: Without dead ends: 3836 [2023-11-06 22:45:42,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:45:42,199 INFO L413 NwaCegarLoop]: 537 mSDtfsCounter, 1455 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1455 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:45:42,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1455 Valid, 811 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:45:42,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3836 states. [2023-11-06 22:45:43,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3836 to 3832. [2023-11-06 22:45:43,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3832 states, 3831 states have (on average 1.3876272513703993) internal successors, (5316), 3831 states have internal predecessors, (5316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:43,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3832 states to 3832 states and 5316 transitions. [2023-11-06 22:45:43,890 INFO L78 Accepts]: Start accepts. Automaton has 3832 states and 5316 transitions. Word has length 67 [2023-11-06 22:45:43,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:45:43,891 INFO L495 AbstractCegarLoop]: Abstraction has 3832 states and 5316 transitions. [2023-11-06 22:45:43,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:43,892 INFO L276 IsEmpty]: Start isEmpty. Operand 3832 states and 5316 transitions. [2023-11-06 22:45:43,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-06 22:45:43,895 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:45:43,895 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] [2023-11-06 22:45:43,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-06 22:45:43,896 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:45:43,896 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:45:43,896 INFO L85 PathProgramCache]: Analyzing trace with hash -565252104, now seen corresponding path program 1 times [2023-11-06 22:45:43,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:45:43,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815578798] [2023-11-06 22:45:43,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:45:43,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:45:43,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:44,055 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 22:45:44,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:45:44,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815578798] [2023-11-06 22:45:44,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815578798] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:45:44,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:45:44,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:45:44,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5604821] [2023-11-06 22:45:44,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:45:44,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:45:44,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:45:44,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:45:44,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:45:44,059 INFO L87 Difference]: Start difference. First operand 3832 states and 5316 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:47,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:45:47,154 INFO L93 Difference]: Finished difference Result 10122 states and 14242 transitions. [2023-11-06 22:45:47,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:45:47,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2023-11-06 22:45:47,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:45:47,162 INFO L225 Difference]: With dead ends: 10122 [2023-11-06 22:45:47,163 INFO L226 Difference]: Without dead ends: 6820 [2023-11-06 22:45:47,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:45:47,167 INFO L413 NwaCegarLoop]: 577 mSDtfsCounter, 277 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 865 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:45:47,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 865 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:45:47,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6820 states. [2023-11-06 22:45:50,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6820 to 6402. [2023-11-06 22:45:50,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6402 states, 6401 states have (on average 1.391032651148258) internal successors, (8904), 6401 states have internal predecessors, (8904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:50,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6402 states to 6402 states and 8904 transitions. [2023-11-06 22:45:50,150 INFO L78 Accepts]: Start accepts. Automaton has 6402 states and 8904 transitions. Word has length 69 [2023-11-06 22:45:50,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:45:50,150 INFO L495 AbstractCegarLoop]: Abstraction has 6402 states and 8904 transitions. [2023-11-06 22:45:50,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:50,150 INFO L276 IsEmpty]: Start isEmpty. Operand 6402 states and 8904 transitions. [2023-11-06 22:45:50,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-06 22:45:50,153 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:45:50,154 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] [2023-11-06 22:45:50,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-06 22:45:50,154 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:45:50,154 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:45:50,155 INFO L85 PathProgramCache]: Analyzing trace with hash -195732182, now seen corresponding path program 1 times [2023-11-06 22:45:50,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:45:50,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794443503] [2023-11-06 22:45:50,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:45:50,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:45:50,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:50,302 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 22:45:50,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:45:50,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794443503] [2023-11-06 22:45:50,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794443503] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:45:50,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:45:50,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:45:50,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183329715] [2023-11-06 22:45:50,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:45:50,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:45:50,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:45:50,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:45:50,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:45:50,304 INFO L87 Difference]: Start difference. First operand 6402 states and 8904 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:56,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:45:56,314 INFO L93 Difference]: Finished difference Result 17520 states and 24500 transitions. [2023-11-06 22:45:56,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:45:56,316 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2023-11-06 22:45:56,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:45:56,328 INFO L225 Difference]: With dead ends: 17520 [2023-11-06 22:45:56,328 INFO L226 Difference]: Without dead ends: 11632 [2023-11-06 22:45:56,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:45:56,335 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 322 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:45:56,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 825 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:45:56,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11632 states. [2023-11-06 22:46:01,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11632 to 10798. [2023-11-06 22:46:01,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10798 states, 10797 states have (on average 1.3827915161618969) internal successors, (14930), 10797 states have internal predecessors, (14930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:01,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10798 states to 10798 states and 14930 transitions. [2023-11-06 22:46:01,584 INFO L78 Accepts]: Start accepts. Automaton has 10798 states and 14930 transitions. Word has length 72 [2023-11-06 22:46:01,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:46:01,584 INFO L495 AbstractCegarLoop]: Abstraction has 10798 states and 14930 transitions. [2023-11-06 22:46:01,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:01,584 INFO L276 IsEmpty]: Start isEmpty. Operand 10798 states and 14930 transitions. [2023-11-06 22:46:01,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-06 22:46:01,587 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:46:01,587 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] [2023-11-06 22:46:01,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-06 22:46:01,588 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:46:01,588 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:01,588 INFO L85 PathProgramCache]: Analyzing trace with hash 950824169, now seen corresponding path program 1 times [2023-11-06 22:46:01,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:46:01,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126658253] [2023-11-06 22:46:01,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:01,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:46:01,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:01,859 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 22:46:01,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:46:01,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126658253] [2023-11-06 22:46:01,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126658253] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:46:01,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:46:01,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:46:01,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970835930] [2023-11-06 22:46:01,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:46:01,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:46:01,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:46:01,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:46:01,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:46:01,862 INFO L87 Difference]: Start difference. First operand 10798 states and 14930 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:14,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:46:14,038 INFO L93 Difference]: Finished difference Result 22757 states and 31073 transitions. [2023-11-06 22:46:14,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:46:14,039 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2023-11-06 22:46:14,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:46:14,069 INFO L225 Difference]: With dead ends: 22757 [2023-11-06 22:46:14,069 INFO L226 Difference]: Without dead ends: 22755 [2023-11-06 22:46:14,074 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:46:14,075 INFO L413 NwaCegarLoop]: 569 mSDtfsCounter, 627 mSDsluCounter, 1737 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 2306 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:46:14,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [627 Valid, 2306 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:46:14,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22755 states. [2023-11-06 22:46:20,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22755 to 11686. [2023-11-06 22:46:20,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11686 states, 11685 states have (on average 1.353701326486949) internal successors, (15818), 11685 states have internal predecessors, (15818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:20,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11686 states to 11686 states and 15818 transitions. [2023-11-06 22:46:20,477 INFO L78 Accepts]: Start accepts. Automaton has 11686 states and 15818 transitions. Word has length 72 [2023-11-06 22:46:20,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:46:20,478 INFO L495 AbstractCegarLoop]: Abstraction has 11686 states and 15818 transitions. [2023-11-06 22:46:20,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:20,478 INFO L276 IsEmpty]: Start isEmpty. Operand 11686 states and 15818 transitions. [2023-11-06 22:46:20,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-06 22:46:20,481 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:46:20,481 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] [2023-11-06 22:46:20,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-06 22:46:20,482 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:46:20,482 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:20,483 INFO L85 PathProgramCache]: Analyzing trace with hash -467379378, now seen corresponding path program 1 times [2023-11-06 22:46:20,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:46:20,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132476896] [2023-11-06 22:46:20,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:20,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:46:20,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:20,550 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 22:46:20,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:46:20,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132476896] [2023-11-06 22:46:20,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132476896] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:46:20,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:46:20,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:46:20,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910043464] [2023-11-06 22:46:20,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:46:20,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:46:20,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:46:20,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:46:20,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:46:20,553 INFO L87 Difference]: Start difference. First operand 11686 states and 15818 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:31,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:46:31,073 INFO L93 Difference]: Finished difference Result 31588 states and 42790 transitions. [2023-11-06 22:46:31,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:46:31,073 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2023-11-06 22:46:31,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:46:31,100 INFO L225 Difference]: With dead ends: 31588 [2023-11-06 22:46:31,100 INFO L226 Difference]: Without dead ends: 20418 [2023-11-06 22:46:31,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:46:31,112 INFO L413 NwaCegarLoop]: 532 mSDtfsCounter, 291 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:46:31,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 811 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:46:31,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20418 states. [2023-11-06 22:46:42,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20418 to 20416. [2023-11-06 22:46:42,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20416 states, 20415 states have (on average 1.3349008082292433) internal successors, (27252), 20415 states have internal predecessors, (27252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:42,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20416 states to 20416 states and 27252 transitions. [2023-11-06 22:46:42,237 INFO L78 Accepts]: Start accepts. Automaton has 20416 states and 27252 transitions. Word has length 73 [2023-11-06 22:46:42,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:46:42,237 INFO L495 AbstractCegarLoop]: Abstraction has 20416 states and 27252 transitions. [2023-11-06 22:46:42,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:42,237 INFO L276 IsEmpty]: Start isEmpty. Operand 20416 states and 27252 transitions. [2023-11-06 22:46:42,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-06 22:46:42,240 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:46:42,240 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 22:46:42,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-06 22:46:42,241 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:46:42,241 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:42,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1772479294, now seen corresponding path program 1 times [2023-11-06 22:46:42,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:46:42,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629345292] [2023-11-06 22:46:42,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:42,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:46:42,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:42,420 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 22:46:42,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:46:42,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629345292] [2023-11-06 22:46:42,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629345292] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:46:42,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:46:42,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:46:42,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145744799] [2023-11-06 22:46:42,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:46:42,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:46:42,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:46:42,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:46:42,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:46:42,423 INFO L87 Difference]: Start difference. First operand 20416 states and 27252 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:58,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:46:58,119 INFO L93 Difference]: Finished difference Result 35910 states and 48130 transitions. [2023-11-06 22:46:58,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:46:58,120 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2023-11-06 22:46:58,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:46:58,164 INFO L225 Difference]: With dead ends: 35910 [2023-11-06 22:46:58,165 INFO L226 Difference]: Without dead ends: 29380 [2023-11-06 22:46:58,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:46:58,175 INFO L413 NwaCegarLoop]: 592 mSDtfsCounter, 993 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 993 SdHoareTripleChecker+Valid, 1402 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:46:58,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [993 Valid, 1402 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:46:58,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29380 states. [2023-11-06 22:47:12,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29380 to 25598. [2023-11-06 22:47:12,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25598 states, 25597 states have (on average 1.3303902801109504) internal successors, (34054), 25597 states have internal predecessors, (34054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:47:12,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25598 states to 25598 states and 34054 transitions. [2023-11-06 22:47:12,053 INFO L78 Accepts]: Start accepts. Automaton has 25598 states and 34054 transitions. Word has length 77 [2023-11-06 22:47:12,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:47:12,053 INFO L495 AbstractCegarLoop]: Abstraction has 25598 states and 34054 transitions. [2023-11-06 22:47:12,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:47:12,053 INFO L276 IsEmpty]: Start isEmpty. Operand 25598 states and 34054 transitions. [2023-11-06 22:47:12,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-06 22:47:12,056 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:47:12,056 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 22:47:12,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-06 22:47:12,057 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:47:12,057 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:47:12,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1856799535, now seen corresponding path program 1 times [2023-11-06 22:47:12,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:47:12,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749340401] [2023-11-06 22:47:12,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:47:12,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:47:12,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:47:12,191 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 22:47:12,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:47:12,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749340401] [2023-11-06 22:47:12,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749340401] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:47:12,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:47:12,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:47:12,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310340287] [2023-11-06 22:47:12,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:47:12,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:47:12,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:47:12,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:47:12,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:47:12,194 INFO L87 Difference]: Start difference. First operand 25598 states and 34054 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:47:29,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:47:29,514 INFO L93 Difference]: Finished difference Result 39386 states and 52638 transitions. [2023-11-06 22:47:29,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:47:29,515 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2023-11-06 22:47:29,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:47:29,557 INFO L225 Difference]: With dead ends: 39386 [2023-11-06 22:47:29,558 INFO L226 Difference]: Without dead ends: 32856 [2023-11-06 22:47:29,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:47:29,568 INFO L413 NwaCegarLoop]: 599 mSDtfsCounter, 965 mSDsluCounter, 875 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 965 SdHoareTripleChecker+Valid, 1474 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:47:29,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [965 Valid, 1474 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:47:29,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32856 states. [2023-11-06 22:47:45,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32856 to 30778. [2023-11-06 22:47:45,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30778 states, 30777 states have (on average 1.3274198264938104) internal successors, (40854), 30777 states have internal predecessors, (40854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:47:45,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30778 states to 30778 states and 40854 transitions. [2023-11-06 22:47:45,740 INFO L78 Accepts]: Start accepts. Automaton has 30778 states and 40854 transitions. Word has length 78 [2023-11-06 22:47:45,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:47:45,741 INFO L495 AbstractCegarLoop]: Abstraction has 30778 states and 40854 transitions. [2023-11-06 22:47:45,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:47:45,741 INFO L276 IsEmpty]: Start isEmpty. Operand 30778 states and 40854 transitions. [2023-11-06 22:47:45,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-06 22:47:45,743 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:47:45,743 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 22:47:45,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-06 22:47:45,743 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:47:45,744 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:47:45,744 INFO L85 PathProgramCache]: Analyzing trace with hash 2010164398, now seen corresponding path program 1 times [2023-11-06 22:47:45,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:47:45,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743293825] [2023-11-06 22:47:45,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:47:45,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:47:45,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:47:45,898 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 22:47:45,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:47:45,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743293825] [2023-11-06 22:47:45,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743293825] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:47:45,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:47:45,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:47:45,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131962893] [2023-11-06 22:47:45,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:47:45,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:47:45,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:47:45,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:47:45,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:47:45,901 INFO L87 Difference]: Start difference. First operand 30778 states and 40854 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:48:08,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:48:08,126 INFO L93 Difference]: Finished difference Result 44630 states and 59422 transitions. [2023-11-06 22:48:08,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:48:08,127 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2023-11-06 22:48:08,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:48:08,186 INFO L225 Difference]: With dead ends: 44630 [2023-11-06 22:48:08,186 INFO L226 Difference]: Without dead ends: 38060 [2023-11-06 22:48:08,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:48:08,196 INFO L413 NwaCegarLoop]: 592 mSDtfsCounter, 1054 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1054 SdHoareTripleChecker+Valid, 1302 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:48:08,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1054 Valid, 1302 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:48:08,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38060 states.