./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 16f1bfcdafcb30da29b0067c09066abcd5ae81f862f6e318335df039804ff932 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:31:29,223 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:31:29,287 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 03:31:29,291 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:31:29,291 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:31:29,316 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:31:29,317 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:31:29,317 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:31:29,318 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 03:31:29,318 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 03:31:29,319 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:31:29,319 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:31:29,320 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:31:29,321 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:31:29,321 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:31:29,322 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:31:29,322 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:31:29,323 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 03:31:29,323 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 03:31:29,323 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 03:31:29,324 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:31:29,325 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:31:29,325 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:31:29,326 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:31:29,326 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 03:31:29,327 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:31:29,327 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:31:29,327 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:31:29,328 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:31:29,328 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 03:31:29,329 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:31:29,329 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:31:29,329 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:31:29,330 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:31:29,330 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 03:31:29,330 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 03:31:29,330 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 03:31:29,330 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:31:29,330 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:31:29,331 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 03:31:29,331 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:31:29,331 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:31:29,331 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_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16f1bfcdafcb30da29b0067c09066abcd5ae81f862f6e318335df039804ff932 [2023-11-29 03:31:29,566 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:31:29,587 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:31:29,589 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:31:29,590 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:31:29,591 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:31:29,592 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-11-29 03:31:32,310 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:31:32,590 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:31:32,590 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-11-29 03:31:32,607 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/bin/uautomizer-verify-BQ2R08f2Ya/data/185b899a4/c84297b8be554e0ca5c6dd465b1ca5e5/FLAG7c30a049e [2023-11-29 03:31:32,622 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/bin/uautomizer-verify-BQ2R08f2Ya/data/185b899a4/c84297b8be554e0ca5c6dd465b1ca5e5 [2023-11-29 03:31:32,625 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:31:32,626 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:31:32,628 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:31:32,628 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:31:32,633 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:31:32,633 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:31:32" (1/1) ... [2023-11-29 03:31:32,635 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@471ca01f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:31:32, skipping insertion in model container [2023-11-29 03:31:32,635 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:31:32" (1/1) ... [2023-11-29 03:31:32,730 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:31:32,958 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_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[8112,8125] [2023-11-29 03:31:32,999 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_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14224,14237] [2023-11-29 03:31:33,013 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_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[16311,16324] [2023-11-29 03:31:33,020 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_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[17335,17348] [2023-11-29 03:31:33,157 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:31:33,174 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:31:33,228 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_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[8112,8125] [2023-11-29 03:31:33,246 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_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14224,14237] [2023-11-29 03:31:33,254 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_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[16311,16324] [2023-11-29 03:31:33,259 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_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[17335,17348] [2023-11-29 03:31:33,348 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:31:33,368 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:31:33,368 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:31:33 WrapperNode [2023-11-29 03:31:33,369 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:31:33,370 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:31:33,370 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:31:33,370 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:31:33,378 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:31:33" (1/1) ... [2023-11-29 03:31:33,406 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:31:33" (1/1) ... [2023-11-29 03:31:33,482 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2570 [2023-11-29 03:31:33,482 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:31:33,483 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:31:33,483 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:31:33,483 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:31:33,494 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:31:33" (1/1) ... [2023-11-29 03:31:33,495 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:31:33" (1/1) ... [2023-11-29 03:31:33,503 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:31:33" (1/1) ... [2023-11-29 03:31:33,541 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 03:31:33,541 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:31:33" (1/1) ... [2023-11-29 03:31:33,541 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:31:33" (1/1) ... [2023-11-29 03:31:33,569 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:31:33" (1/1) ... [2023-11-29 03:31:33,583 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:31:33" (1/1) ... [2023-11-29 03:31:33,598 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:31:33" (1/1) ... [2023-11-29 03:31:33,614 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:31:33" (1/1) ... [2023-11-29 03:31:33,626 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:31:33,627 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:31:33,628 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:31:33,628 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:31:33,628 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:31:33" (1/1) ... [2023-11-29 03:31:33,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:31:33,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:31:33,657 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 03:31:33,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 03:31:33,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 03:31:33,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 03:31:33,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:31:33,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:31:33,927 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:31:33,929 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:31:35,165 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:31:35,215 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:31:35,215 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 03:31:35,216 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:31:35 BoogieIcfgContainer [2023-11-29 03:31:35,216 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:31:35,218 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 03:31:35,218 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 03:31:35,222 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 03:31:35,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:31:32" (1/3) ... [2023-11-29 03:31:35,223 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cb8b2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:31:35, skipping insertion in model container [2023-11-29 03:31:35,223 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:31:33" (2/3) ... [2023-11-29 03:31:35,223 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cb8b2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:31:35, skipping insertion in model container [2023-11-29 03:31:35,223 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:31:35" (3/3) ... [2023-11-29 03:31:35,225 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-11-29 03:31:35,243 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 03:31:35,243 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-29 03:31:35,298 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:31:35,305 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6f2670e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:31:35,305 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-29 03:31:35,312 INFO L276 IsEmpty]: Start isEmpty. Operand has 439 states, 434 states have (on average 1.8617511520737327) internal successors, (808), 438 states have internal predecessors, (808), 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) [2023-11-29 03:31:35,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-29 03:31:35,328 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:35,329 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] [2023-11-29 03:31:35,330 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:31:35,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:35,335 INFO L85 PathProgramCache]: Analyzing trace with hash 296688961, now seen corresponding path program 1 times [2023-11-29 03:31:35,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:35,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403205022] [2023-11-29 03:31:35,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:35,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:35,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:35,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:35,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:35,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403205022] [2023-11-29 03:31:35,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403205022] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:35,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:35,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:31:35,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993791381] [2023-11-29 03:31:35,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:35,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:31:35,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:35,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:31:35,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:31:35,710 INFO L87 Difference]: Start difference. First operand has 439 states, 434 states have (on average 1.8617511520737327) internal successors, (808), 438 states have internal predecessors, (808), 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 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2023-11-29 03:31:35,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:35,836 INFO L93 Difference]: Finished difference Result 685 states and 1209 transitions. [2023-11-29 03:31:35,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:31:35,838 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 48 [2023-11-29 03:31:35,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:35,855 INFO L225 Difference]: With dead ends: 685 [2023-11-29 03:31:35,855 INFO L226 Difference]: Without dead ends: 544 [2023-11-29 03:31:35,858 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 [2023-11-29 03:31:35,862 INFO L413 NwaCegarLoop]: 825 mSDtfsCounter, 421 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 1348 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:35,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 1348 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:31:35,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2023-11-29 03:31:35,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 538. [2023-11-29 03:31:35,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 534 states have (on average 1.3426966292134832) internal successors, (717), 537 states have internal predecessors, (717), 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) [2023-11-29 03:31:35,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 717 transitions. [2023-11-29 03:31:35,928 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 717 transitions. Word has length 48 [2023-11-29 03:31:35,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:35,928 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 717 transitions. [2023-11-29 03:31:35,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2023-11-29 03:31:35,929 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 717 transitions. [2023-11-29 03:31:35,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-29 03:31:35,933 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:35,934 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] [2023-11-29 03:31:35,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 03:31:35,934 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:31:35,935 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:35,935 INFO L85 PathProgramCache]: Analyzing trace with hash 152491643, now seen corresponding path program 1 times [2023-11-29 03:31:35,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:35,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990722282] [2023-11-29 03:31:35,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:35,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:35,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:36,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:36,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:36,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990722282] [2023-11-29 03:31:36,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990722282] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:36,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:36,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:31:36,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374244107] [2023-11-29 03:31:36,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:36,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:31:36,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:36,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:31:36,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:31:36,068 INFO L87 Difference]: Start difference. First operand 538 states and 717 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2023-11-29 03:31:36,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:36,132 INFO L93 Difference]: Finished difference Result 953 states and 1327 transitions. [2023-11-29 03:31:36,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:31:36,132 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 48 [2023-11-29 03:31:36,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:36,137 INFO L225 Difference]: With dead ends: 953 [2023-11-29 03:31:36,137 INFO L226 Difference]: Without dead ends: 712 [2023-11-29 03:31:36,139 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 [2023-11-29 03:31:36,140 INFO L413 NwaCegarLoop]: 575 mSDtfsCounter, 238 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 1020 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:36,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 1020 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:31:36,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2023-11-29 03:31:36,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 706. [2023-11-29 03:31:36,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 702 states have (on average 1.3660968660968662) internal successors, (959), 705 states have internal predecessors, (959), 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) [2023-11-29 03:31:36,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 959 transitions. [2023-11-29 03:31:36,171 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 959 transitions. Word has length 48 [2023-11-29 03:31:36,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:36,172 INFO L495 AbstractCegarLoop]: Abstraction has 706 states and 959 transitions. [2023-11-29 03:31:36,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2023-11-29 03:31:36,172 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 959 transitions. [2023-11-29 03:31:36,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-29 03:31:36,176 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:36,176 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] [2023-11-29 03:31:36,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 03:31:36,176 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:31:36,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:36,177 INFO L85 PathProgramCache]: Analyzing trace with hash -283473766, now seen corresponding path program 1 times [2023-11-29 03:31:36,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:36,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456743831] [2023-11-29 03:31:36,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:36,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:36,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:36,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:36,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:36,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456743831] [2023-11-29 03:31:36,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456743831] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:36,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:36,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:31:36,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580799318] [2023-11-29 03:31:36,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:36,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:31:36,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:36,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:31:36,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:31:36,291 INFO L87 Difference]: Start difference. First operand 706 states and 959 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2023-11-29 03:31:36,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:36,377 INFO L93 Difference]: Finished difference Result 1362 states and 1910 transitions. [2023-11-29 03:31:36,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:31:36,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 48 [2023-11-29 03:31:36,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:36,384 INFO L225 Difference]: With dead ends: 1362 [2023-11-29 03:31:36,384 INFO L226 Difference]: Without dead ends: 1033 [2023-11-29 03:31:36,385 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 [2023-11-29 03:31:36,387 INFO L413 NwaCegarLoop]: 618 mSDtfsCounter, 299 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:36,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 995 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:31:36,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1033 states. [2023-11-29 03:31:36,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1033 to 1026. [2023-11-29 03:31:36,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1026 states, 1022 states have (on average 1.3806262230919766) internal successors, (1411), 1025 states have internal predecessors, (1411), 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) [2023-11-29 03:31:36,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1026 states to 1026 states and 1411 transitions. [2023-11-29 03:31:36,416 INFO L78 Accepts]: Start accepts. Automaton has 1026 states and 1411 transitions. Word has length 48 [2023-11-29 03:31:36,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:36,416 INFO L495 AbstractCegarLoop]: Abstraction has 1026 states and 1411 transitions. [2023-11-29 03:31:36,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2023-11-29 03:31:36,417 INFO L276 IsEmpty]: Start isEmpty. Operand 1026 states and 1411 transitions. [2023-11-29 03:31:36,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-29 03:31:36,419 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:36,420 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] [2023-11-29 03:31:36,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 03:31:36,420 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:31:36,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:36,421 INFO L85 PathProgramCache]: Analyzing trace with hash -427757648, now seen corresponding path program 1 times [2023-11-29 03:31:36,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:36,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347386824] [2023-11-29 03:31:36,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:36,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:36,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:36,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:36,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:36,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347386824] [2023-11-29 03:31:36,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347386824] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:36,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:36,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:31:36,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080898732] [2023-11-29 03:31:36,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:36,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:31:36,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:36,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:31:36,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:31:36,561 INFO L87 Difference]: Start difference. First operand 1026 states and 1411 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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) [2023-11-29 03:31:36,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:36,923 INFO L93 Difference]: Finished difference Result 2115 states and 2958 transitions. [2023-11-29 03:31:36,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:31:36,924 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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 48 [2023-11-29 03:31:36,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:36,930 INFO L225 Difference]: With dead ends: 2115 [2023-11-29 03:31:36,930 INFO L226 Difference]: Without dead ends: 1253 [2023-11-29 03:31:36,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:31:36,932 INFO L413 NwaCegarLoop]: 298 mSDtfsCounter, 1698 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1698 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:36,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1698 Valid, 401 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:31:36,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1253 states. [2023-11-29 03:31:36,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1253 to 1243. [2023-11-29 03:31:36,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1243 states, 1239 states have (on average 1.393866020984665) internal successors, (1727), 1242 states have internal predecessors, (1727), 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) [2023-11-29 03:31:36,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1243 states to 1243 states and 1727 transitions. [2023-11-29 03:31:36,959 INFO L78 Accepts]: Start accepts. Automaton has 1243 states and 1727 transitions. Word has length 48 [2023-11-29 03:31:36,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:36,959 INFO L495 AbstractCegarLoop]: Abstraction has 1243 states and 1727 transitions. [2023-11-29 03:31:36,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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) [2023-11-29 03:31:36,960 INFO L276 IsEmpty]: Start isEmpty. Operand 1243 states and 1727 transitions. [2023-11-29 03:31:36,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-29 03:31:36,961 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:36,961 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] [2023-11-29 03:31:36,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 03:31:36,961 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:31:36,962 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:36,962 INFO L85 PathProgramCache]: Analyzing trace with hash 2032962725, now seen corresponding path program 1 times [2023-11-29 03:31:36,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:36,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063502231] [2023-11-29 03:31:36,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:36,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:37,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:37,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:37,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:37,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063502231] [2023-11-29 03:31:37,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063502231] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:37,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:37,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:31:37,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960799934] [2023-11-29 03:31:37,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:37,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:31:37,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:37,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:31:37,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:31:37,106 INFO L87 Difference]: Start difference. First operand 1243 states and 1727 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 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) [2023-11-29 03:31:37,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:37,395 INFO L93 Difference]: Finished difference Result 2641 states and 3720 transitions. [2023-11-29 03:31:37,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:31:37,396 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 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 49 [2023-11-29 03:31:37,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:37,404 INFO L225 Difference]: With dead ends: 2641 [2023-11-29 03:31:37,405 INFO L226 Difference]: Without dead ends: 1577 [2023-11-29 03:31:37,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:31:37,407 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 1450 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1450 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:37,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1450 Valid, 344 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:31:37,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1577 states. [2023-11-29 03:31:37,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1577 to 1175. [2023-11-29 03:31:37,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1175 states, 1171 states have (on average 1.3936806148590948) internal successors, (1632), 1174 states have internal predecessors, (1632), 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) [2023-11-29 03:31:37,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1175 states to 1175 states and 1632 transitions. [2023-11-29 03:31:37,446 INFO L78 Accepts]: Start accepts. Automaton has 1175 states and 1632 transitions. Word has length 49 [2023-11-29 03:31:37,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:37,446 INFO L495 AbstractCegarLoop]: Abstraction has 1175 states and 1632 transitions. [2023-11-29 03:31:37,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 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) [2023-11-29 03:31:37,447 INFO L276 IsEmpty]: Start isEmpty. Operand 1175 states and 1632 transitions. [2023-11-29 03:31:37,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-29 03:31:37,448 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:37,449 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] [2023-11-29 03:31:37,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 03:31:37,449 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:31:37,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:37,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1695508102, now seen corresponding path program 1 times [2023-11-29 03:31:37,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:37,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093075125] [2023-11-29 03:31:37,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:37,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:37,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:37,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:37,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:37,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093075125] [2023-11-29 03:31:37,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093075125] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:37,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:37,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:31:37,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530732240] [2023-11-29 03:31:37,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:37,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:31:37,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:37,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:31:37,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:31:37,567 INFO L87 Difference]: Start difference. First operand 1175 states and 1632 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 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) [2023-11-29 03:31:37,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:37,834 INFO L93 Difference]: Finished difference Result 2590 states and 3625 transitions. [2023-11-29 03:31:37,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:31:37,835 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 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 49 [2023-11-29 03:31:37,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:37,843 INFO L225 Difference]: With dead ends: 2590 [2023-11-29 03:31:37,843 INFO L226 Difference]: Without dead ends: 1532 [2023-11-29 03:31:37,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:31:37,845 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 1288 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1288 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:37,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1288 Valid, 318 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:31:37,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1532 states. [2023-11-29 03:31:37,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1532 to 1519. [2023-11-29 03:31:37,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 1515 states have (on average 1.3887788778877888) internal successors, (2104), 1518 states have internal predecessors, (2104), 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) [2023-11-29 03:31:37,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 2104 transitions. [2023-11-29 03:31:37,887 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 2104 transitions. Word has length 49 [2023-11-29 03:31:37,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:37,887 INFO L495 AbstractCegarLoop]: Abstraction has 1519 states and 2104 transitions. [2023-11-29 03:31:37,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 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) [2023-11-29 03:31:37,888 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 2104 transitions. [2023-11-29 03:31:37,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-29 03:31:37,889 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:37,890 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] [2023-11-29 03:31:37,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 03:31:37,890 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:31:37,890 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:37,890 INFO L85 PathProgramCache]: Analyzing trace with hash -949513779, now seen corresponding path program 1 times [2023-11-29 03:31:37,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:37,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949055668] [2023-11-29 03:31:37,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:37,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:37,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:38,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:38,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:38,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949055668] [2023-11-29 03:31:38,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949055668] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:38,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:38,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:31:38,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783816182] [2023-11-29 03:31:38,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:38,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:31:38,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:38,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:31:38,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:31:38,070 INFO L87 Difference]: Start difference. First operand 1519 states and 2104 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 6 states have internal predecessors, (50), 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) [2023-11-29 03:31:38,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:38,607 INFO L93 Difference]: Finished difference Result 4980 states and 7068 transitions. [2023-11-29 03:31:38,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:31:38,608 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 6 states have internal predecessors, (50), 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 50 [2023-11-29 03:31:38,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:38,632 INFO L225 Difference]: With dead ends: 4980 [2023-11-29 03:31:38,632 INFO L226 Difference]: Without dead ends: 4547 [2023-11-29 03:31:38,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-11-29 03:31:38,635 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 3094 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3094 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:38,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3094 Valid, 631 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:31:38,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4547 states. [2023-11-29 03:31:38,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4547 to 1531. [2023-11-29 03:31:38,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1531 states, 1527 states have (on average 1.3883431565160445) internal successors, (2120), 1530 states have internal predecessors, (2120), 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) [2023-11-29 03:31:38,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1531 states to 1531 states and 2120 transitions. [2023-11-29 03:31:38,715 INFO L78 Accepts]: Start accepts. Automaton has 1531 states and 2120 transitions. Word has length 50 [2023-11-29 03:31:38,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:38,716 INFO L495 AbstractCegarLoop]: Abstraction has 1531 states and 2120 transitions. [2023-11-29 03:31:38,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 6 states have internal predecessors, (50), 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) [2023-11-29 03:31:38,716 INFO L276 IsEmpty]: Start isEmpty. Operand 1531 states and 2120 transitions. [2023-11-29 03:31:38,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-29 03:31:38,718 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:38,718 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] [2023-11-29 03:31:38,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 03:31:38,718 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:31:38,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:38,719 INFO L85 PathProgramCache]: Analyzing trace with hash 780000725, now seen corresponding path program 1 times [2023-11-29 03:31:38,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:38,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896196252] [2023-11-29 03:31:38,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:38,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:38,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:38,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:38,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:38,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896196252] [2023-11-29 03:31:38,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896196252] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:38,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:38,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:31:38,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125972165] [2023-11-29 03:31:38,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:38,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:31:38,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:38,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:31:38,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:31:38,865 INFO L87 Difference]: Start difference. First operand 1531 states and 2120 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 6 states have internal predecessors, (51), 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) [2023-11-29 03:31:39,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:39,483 INFO L93 Difference]: Finished difference Result 5315 states and 7566 transitions. [2023-11-29 03:31:39,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:31:39,484 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 6 states have internal predecessors, (51), 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 51 [2023-11-29 03:31:39,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:39,508 INFO L225 Difference]: With dead ends: 5315 [2023-11-29 03:31:39,508 INFO L226 Difference]: Without dead ends: 4767 [2023-11-29 03:31:39,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-11-29 03:31:39,511 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 1997 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1997 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:39,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1997 Valid, 724 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 03:31:39,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4767 states. [2023-11-29 03:31:39,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4767 to 1553. [2023-11-29 03:31:39,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1553 states, 1549 states have (on average 1.3886378308586185) internal successors, (2151), 1552 states have internal predecessors, (2151), 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) [2023-11-29 03:31:39,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1553 states to 1553 states and 2151 transitions. [2023-11-29 03:31:39,594 INFO L78 Accepts]: Start accepts. Automaton has 1553 states and 2151 transitions. Word has length 51 [2023-11-29 03:31:39,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:39,594 INFO L495 AbstractCegarLoop]: Abstraction has 1553 states and 2151 transitions. [2023-11-29 03:31:39,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 6 states have internal predecessors, (51), 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) [2023-11-29 03:31:39,595 INFO L276 IsEmpty]: Start isEmpty. Operand 1553 states and 2151 transitions. [2023-11-29 03:31:39,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-29 03:31:39,597 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:39,597 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] [2023-11-29 03:31:39,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 03:31:39,597 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:31:39,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:39,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1979826028, now seen corresponding path program 1 times [2023-11-29 03:31:39,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:39,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218162904] [2023-11-29 03:31:39,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:39,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:39,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:39,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:39,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:39,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218162904] [2023-11-29 03:31:39,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218162904] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:39,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:39,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:31:39,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609460184] [2023-11-29 03:31:39,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:39,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:31:39,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:39,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:31:39,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:31:39,727 INFO L87 Difference]: Start difference. First operand 1553 states and 2151 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 6 states have internal predecessors, (51), 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) [2023-11-29 03:31:40,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:40,193 INFO L93 Difference]: Finished difference Result 4978 states and 7032 transitions. [2023-11-29 03:31:40,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:31:40,194 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 6 states have internal predecessors, (51), 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 51 [2023-11-29 03:31:40,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:40,214 INFO L225 Difference]: With dead ends: 4978 [2023-11-29 03:31:40,214 INFO L226 Difference]: Without dead ends: 4263 [2023-11-29 03:31:40,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-11-29 03:31:40,217 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 2619 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2619 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:40,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2619 Valid, 589 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:31:40,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4263 states. [2023-11-29 03:31:40,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4263 to 1567. [2023-11-29 03:31:40,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1563 states have (on average 1.3877159309021114) internal successors, (2169), 1566 states have internal predecessors, (2169), 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) [2023-11-29 03:31:40,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 2169 transitions. [2023-11-29 03:31:40,303 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 2169 transitions. Word has length 51 [2023-11-29 03:31:40,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:40,304 INFO L495 AbstractCegarLoop]: Abstraction has 1567 states and 2169 transitions. [2023-11-29 03:31:40,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 6 states have internal predecessors, (51), 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) [2023-11-29 03:31:40,304 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 2169 transitions. [2023-11-29 03:31:40,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-29 03:31:40,307 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:40,307 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] [2023-11-29 03:31:40,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 03:31:40,307 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:31:40,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:40,308 INFO L85 PathProgramCache]: Analyzing trace with hash 256982160, now seen corresponding path program 1 times [2023-11-29 03:31:40,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:40,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660212808] [2023-11-29 03:31:40,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:40,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:40,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:40,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:40,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:40,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660212808] [2023-11-29 03:31:40,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660212808] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:40,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:40,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:31:40,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448463449] [2023-11-29 03:31:40,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:40,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:31:40,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:40,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:31:40,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:31:40,622 INFO L87 Difference]: Start difference. First operand 1567 states and 2169 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 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) [2023-11-29 03:31:41,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:41,166 INFO L93 Difference]: Finished difference Result 4019 states and 5670 transitions. [2023-11-29 03:31:41,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:31:41,167 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 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 [2023-11-29 03:31:41,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:41,181 INFO L225 Difference]: With dead ends: 4019 [2023-11-29 03:31:41,181 INFO L226 Difference]: Without dead ends: 2969 [2023-11-29 03:31:41,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:31:41,183 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 1757 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1757 SdHoareTripleChecker+Valid, 880 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:41,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1757 Valid, 880 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:31:41,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2969 states. [2023-11-29 03:31:41,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2969 to 1567. [2023-11-29 03:31:41,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1563 states have (on average 1.3845169545745362) internal successors, (2164), 1566 states have internal predecessors, (2164), 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) [2023-11-29 03:31:41,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 2164 transitions. [2023-11-29 03:31:41,230 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 2164 transitions. Word has length 52 [2023-11-29 03:31:41,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:41,230 INFO L495 AbstractCegarLoop]: Abstraction has 1567 states and 2164 transitions. [2023-11-29 03:31:41,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 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) [2023-11-29 03:31:41,230 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 2164 transitions. [2023-11-29 03:31:41,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-29 03:31:41,232 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:41,232 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] [2023-11-29 03:31:41,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 03:31:41,233 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:31:41,233 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:41,233 INFO L85 PathProgramCache]: Analyzing trace with hash 112784842, now seen corresponding path program 1 times [2023-11-29 03:31:41,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:41,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727830712] [2023-11-29 03:31:41,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:41,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:41,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:41,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:41,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:41,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727830712] [2023-11-29 03:31:41,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727830712] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:41,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:41,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 03:31:41,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365668868] [2023-11-29 03:31:41,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:41,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:31:41,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:41,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:31:41,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:31:41,520 INFO L87 Difference]: Start difference. First operand 1567 states and 2164 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 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) [2023-11-29 03:31:42,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:42,177 INFO L93 Difference]: Finished difference Result 5268 states and 7538 transitions. [2023-11-29 03:31:42,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 03:31:42,178 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 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 [2023-11-29 03:31:42,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:42,198 INFO L225 Difference]: With dead ends: 5268 [2023-11-29 03:31:42,198 INFO L226 Difference]: Without dead ends: 4352 [2023-11-29 03:31:42,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:31:42,201 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 1112 mSDsluCounter, 1077 mSDsCounter, 0 mSdLazyCounter, 851 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1112 SdHoareTripleChecker+Valid, 1382 SdHoareTripleChecker+Invalid, 866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:42,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1112 Valid, 1382 Invalid, 866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 851 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 03:31:42,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4352 states. [2023-11-29 03:31:42,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4352 to 1538. [2023-11-29 03:31:42,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1538 states, 1534 states have (on average 1.3839634941329857) internal successors, (2123), 1537 states have internal predecessors, (2123), 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) [2023-11-29 03:31:42,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1538 states to 1538 states and 2123 transitions. [2023-11-29 03:31:42,250 INFO L78 Accepts]: Start accepts. Automaton has 1538 states and 2123 transitions. Word has length 52 [2023-11-29 03:31:42,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:42,251 INFO L495 AbstractCegarLoop]: Abstraction has 1538 states and 2123 transitions. [2023-11-29 03:31:42,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 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) [2023-11-29 03:31:42,251 INFO L276 IsEmpty]: Start isEmpty. Operand 1538 states and 2123 transitions. [2023-11-29 03:31:42,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-29 03:31:42,253 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:42,253 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] [2023-11-29 03:31:42,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 03:31:42,253 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:31:42,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:42,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1437836689, now seen corresponding path program 1 times [2023-11-29 03:31:42,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:42,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653027007] [2023-11-29 03:31:42,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:42,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:42,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:42,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:42,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:42,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653027007] [2023-11-29 03:31:42,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653027007] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:42,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:42,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 03:31:42,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207516743] [2023-11-29 03:31:42,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:42,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:31:42,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:42,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:31:42,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:31:42,485 INFO L87 Difference]: Start difference. First operand 1538 states and 2123 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 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) [2023-11-29 03:31:43,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:43,115 INFO L93 Difference]: Finished difference Result 3566 states and 5045 transitions. [2023-11-29 03:31:43,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 03:31:43,117 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 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 [2023-11-29 03:31:43,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:43,127 INFO L225 Difference]: With dead ends: 3566 [2023-11-29 03:31:43,128 INFO L226 Difference]: Without dead ends: 3561 [2023-11-29 03:31:43,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-11-29 03:31:43,129 INFO L413 NwaCegarLoop]: 281 mSDtfsCounter, 1679 mSDsluCounter, 891 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1679 SdHoareTripleChecker+Valid, 1172 SdHoareTripleChecker+Invalid, 838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:43,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1679 Valid, 1172 Invalid, 838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 03:31:43,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3561 states. [2023-11-29 03:31:43,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3561 to 1538. [2023-11-29 03:31:43,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1538 states, 1534 states have (on average 1.3826597131681877) internal successors, (2121), 1537 states have internal predecessors, (2121), 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) [2023-11-29 03:31:43,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1538 states to 1538 states and 2121 transitions. [2023-11-29 03:31:43,175 INFO L78 Accepts]: Start accepts. Automaton has 1538 states and 2121 transitions. Word has length 52 [2023-11-29 03:31:43,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:43,175 INFO L495 AbstractCegarLoop]: Abstraction has 1538 states and 2121 transitions. [2023-11-29 03:31:43,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 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) [2023-11-29 03:31:43,175 INFO L276 IsEmpty]: Start isEmpty. Operand 1538 states and 2121 transitions. [2023-11-29 03:31:43,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-29 03:31:43,177 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:43,178 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] [2023-11-29 03:31:43,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 03:31:43,178 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:31:43,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:43,178 INFO L85 PathProgramCache]: Analyzing trace with hash -563527398, now seen corresponding path program 1 times [2023-11-29 03:31:43,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:43,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118152285] [2023-11-29 03:31:43,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:43,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:43,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:43,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:43,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:43,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118152285] [2023-11-29 03:31:43,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118152285] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:43,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:43,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:31:43,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233747516] [2023-11-29 03:31:43,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:43,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:31:43,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:43,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:31:43,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:31:43,236 INFO L87 Difference]: Start difference. First operand 1538 states and 2121 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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) [2023-11-29 03:31:43,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:43,267 INFO L93 Difference]: Finished difference Result 2066 states and 2849 transitions. [2023-11-29 03:31:43,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:31:43,268 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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 [2023-11-29 03:31:43,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:43,271 INFO L225 Difference]: With dead ends: 2066 [2023-11-29 03:31:43,271 INFO L226 Difference]: Without dead ends: 1507 [2023-11-29 03:31:43,272 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 [2023-11-29 03:31:43,272 INFO L413 NwaCegarLoop]: 470 mSDtfsCounter, 259 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:43,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 674 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:31:43,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1507 states. [2023-11-29 03:31:43,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1507 to 1505. [2023-11-29 03:31:43,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 1501 states have (on average 1.3537641572285144) internal successors, (2032), 1504 states have internal predecessors, (2032), 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) [2023-11-29 03:31:43,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 2032 transitions. [2023-11-29 03:31:43,298 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 2032 transitions. Word has length 53 [2023-11-29 03:31:43,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:43,298 INFO L495 AbstractCegarLoop]: Abstraction has 1505 states and 2032 transitions. [2023-11-29 03:31:43,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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) [2023-11-29 03:31:43,298 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 2032 transitions. [2023-11-29 03:31:43,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-29 03:31:43,300 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:43,300 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] [2023-11-29 03:31:43,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-29 03:31:43,301 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:31:43,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:43,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1607655498, now seen corresponding path program 1 times [2023-11-29 03:31:43,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:43,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425228228] [2023-11-29 03:31:43,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:43,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:43,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:43,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:43,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:43,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425228228] [2023-11-29 03:31:43,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425228228] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:43,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:43,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:31:43,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194306831] [2023-11-29 03:31:43,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:43,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:31:43,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:43,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:31:43,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:31:43,363 INFO L87 Difference]: Start difference. First operand 1505 states and 2032 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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) [2023-11-29 03:31:43,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:43,408 INFO L93 Difference]: Finished difference Result 2125 states and 2895 transitions. [2023-11-29 03:31:43,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:31:43,408 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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 [2023-11-29 03:31:43,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:43,411 INFO L225 Difference]: With dead ends: 2125 [2023-11-29 03:31:43,411 INFO L226 Difference]: Without dead ends: 1512 [2023-11-29 03:31:43,412 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 [2023-11-29 03:31:43,413 INFO L413 NwaCegarLoop]: 469 mSDtfsCounter, 208 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:43,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 744 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:31:43,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2023-11-29 03:31:43,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1505. [2023-11-29 03:31:43,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 1501 states have (on average 1.3384410393071287) internal successors, (2009), 1504 states have internal predecessors, (2009), 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) [2023-11-29 03:31:43,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 2009 transitions. [2023-11-29 03:31:43,439 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 2009 transitions. Word has length 53 [2023-11-29 03:31:43,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:43,439 INFO L495 AbstractCegarLoop]: Abstraction has 1505 states and 2009 transitions. [2023-11-29 03:31:43,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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) [2023-11-29 03:31:43,440 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 2009 transitions. [2023-11-29 03:31:43,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-29 03:31:43,442 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:43,442 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] [2023-11-29 03:31:43,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 03:31:43,442 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:31:43,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:43,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1981252494, now seen corresponding path program 1 times [2023-11-29 03:31:43,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:43,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471395949] [2023-11-29 03:31:43,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:43,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:43,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:43,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:43,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:43,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471395949] [2023-11-29 03:31:43,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471395949] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:43,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:43,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:31:43,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868287405] [2023-11-29 03:31:43,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:43,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:31:43,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:43,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:31:43,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:31:43,499 INFO L87 Difference]: Start difference. First operand 1505 states and 2009 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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) [2023-11-29 03:31:43,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:43,530 INFO L93 Difference]: Finished difference Result 2162 states and 2913 transitions. [2023-11-29 03:31:43,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:31:43,531 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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 [2023-11-29 03:31:43,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:43,533 INFO L225 Difference]: With dead ends: 2162 [2023-11-29 03:31:43,533 INFO L226 Difference]: Without dead ends: 1511 [2023-11-29 03:31:43,534 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 [2023-11-29 03:31:43,535 INFO L413 NwaCegarLoop]: 487 mSDtfsCounter, 224 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:43,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 751 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:31:43,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1511 states. [2023-11-29 03:31:43,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1511 to 1505. [2023-11-29 03:31:43,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 1501 states have (on average 1.3264490339773485) internal successors, (1991), 1504 states have internal predecessors, (1991), 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) [2023-11-29 03:31:43,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 1991 transitions. [2023-11-29 03:31:43,560 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 1991 transitions. Word has length 53 [2023-11-29 03:31:43,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:43,560 INFO L495 AbstractCegarLoop]: Abstraction has 1505 states and 1991 transitions. [2023-11-29 03:31:43,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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) [2023-11-29 03:31:43,561 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 1991 transitions. [2023-11-29 03:31:43,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-29 03:31:43,563 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:43,563 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] [2023-11-29 03:31:43,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 03:31:43,564 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:31:43,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:43,564 INFO L85 PathProgramCache]: Analyzing trace with hash 468606955, now seen corresponding path program 1 times [2023-11-29 03:31:43,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:43,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594944788] [2023-11-29 03:31:43,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:43,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:43,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:43,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:43,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:43,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594944788] [2023-11-29 03:31:43,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594944788] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:43,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:43,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:31:43,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102349501] [2023-11-29 03:31:43,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:43,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:31:43,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:43,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:31:43,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:31:43,626 INFO L87 Difference]: Start difference. First operand 1505 states and 1991 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 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) [2023-11-29 03:31:43,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:43,677 INFO L93 Difference]: Finished difference Result 2663 states and 3566 transitions. [2023-11-29 03:31:43,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:31:43,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 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 [2023-11-29 03:31:43,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:43,681 INFO L225 Difference]: With dead ends: 2663 [2023-11-29 03:31:43,681 INFO L226 Difference]: Without dead ends: 1793 [2023-11-29 03:31:43,682 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 [2023-11-29 03:31:43,683 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 286 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:43,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 465 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:31:43,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1793 states. [2023-11-29 03:31:43,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1793 to 1425. [2023-11-29 03:31:43,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1425 states, 1421 states have (on average 1.3286418015482055) internal successors, (1888), 1424 states have internal predecessors, (1888), 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) [2023-11-29 03:31:43,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 1888 transitions. [2023-11-29 03:31:43,708 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 1888 transitions. Word has length 55 [2023-11-29 03:31:43,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:43,708 INFO L495 AbstractCegarLoop]: Abstraction has 1425 states and 1888 transitions. [2023-11-29 03:31:43,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 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) [2023-11-29 03:31:43,709 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 1888 transitions. [2023-11-29 03:31:43,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-29 03:31:43,711 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:43,711 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] [2023-11-29 03:31:43,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-29 03:31:43,711 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:31:43,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:43,712 INFO L85 PathProgramCache]: Analyzing trace with hash -2013051481, now seen corresponding path program 1 times [2023-11-29 03:31:43,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:43,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383628651] [2023-11-29 03:31:43,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:43,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:43,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:43,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:43,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:43,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383628651] [2023-11-29 03:31:43,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383628651] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:43,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:43,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:31:43,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972469379] [2023-11-29 03:31:43,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:43,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:31:43,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:43,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:31:43,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:31:43,761 INFO L87 Difference]: Start difference. First operand 1425 states and 1888 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 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) [2023-11-29 03:31:43,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:43,826 INFO L93 Difference]: Finished difference Result 2527 states and 3385 transitions. [2023-11-29 03:31:43,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:31:43,827 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 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 [2023-11-29 03:31:43,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:43,830 INFO L225 Difference]: With dead ends: 2527 [2023-11-29 03:31:43,830 INFO L226 Difference]: Without dead ends: 1703 [2023-11-29 03:31:43,831 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 [2023-11-29 03:31:43,832 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 250 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:43,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 395 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:31:43,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2023-11-29 03:31:43,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 1327. [2023-11-29 03:31:43,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1327 states, 1323 states have (on average 1.3333333333333333) internal successors, (1764), 1326 states have internal predecessors, (1764), 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) [2023-11-29 03:31:43,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1327 states to 1327 states and 1764 transitions. [2023-11-29 03:31:43,854 INFO L78 Accepts]: Start accepts. Automaton has 1327 states and 1764 transitions. Word has length 55 [2023-11-29 03:31:43,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:43,855 INFO L495 AbstractCegarLoop]: Abstraction has 1327 states and 1764 transitions. [2023-11-29 03:31:43,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 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) [2023-11-29 03:31:43,855 INFO L276 IsEmpty]: Start isEmpty. Operand 1327 states and 1764 transitions. [2023-11-29 03:31:43,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-29 03:31:43,857 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:43,857 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] [2023-11-29 03:31:43,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-29 03:31:43,857 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:31:43,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:43,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1441162398, now seen corresponding path program 1 times [2023-11-29 03:31:43,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:43,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483557459] [2023-11-29 03:31:43,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:43,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:43,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:44,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:44,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:44,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483557459] [2023-11-29 03:31:44,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483557459] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:44,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:44,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-11-29 03:31:44,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210230652] [2023-11-29 03:31:44,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:44,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-29 03:31:44,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:44,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 03:31:44,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2023-11-29 03:31:44,995 INFO L87 Difference]: Start difference. First operand 1327 states and 1764 transitions. Second operand has 19 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 18 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) [2023-11-29 03:31:46,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:46,978 INFO L93 Difference]: Finished difference Result 2920 states and 3941 transitions. [2023-11-29 03:31:46,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 03:31:46,978 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 18 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 [2023-11-29 03:31:46,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:46,983 INFO L225 Difference]: With dead ends: 2920 [2023-11-29 03:31:46,983 INFO L226 Difference]: Without dead ends: 2916 [2023-11-29 03:31:46,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=204, Invalid=986, Unknown=0, NotChecked=0, Total=1190 [2023-11-29 03:31:46,985 INFO L413 NwaCegarLoop]: 427 mSDtfsCounter, 3383 mSDsluCounter, 4242 mSDsCounter, 0 mSdLazyCounter, 2146 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3383 SdHoareTripleChecker+Valid, 4669 SdHoareTripleChecker+Invalid, 2148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:46,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3383 Valid, 4669 Invalid, 2148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2146 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 03:31:46,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2916 states. [2023-11-29 03:31:47,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2916 to 1339. [2023-11-29 03:31:47,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1339 states, 1335 states have (on average 1.3340823970037454) internal successors, (1781), 1338 states have internal predecessors, (1781), 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) [2023-11-29 03:31:47,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 1781 transitions. [2023-11-29 03:31:47,013 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 1781 transitions. Word has length 55 [2023-11-29 03:31:47,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:47,013 INFO L495 AbstractCegarLoop]: Abstraction has 1339 states and 1781 transitions. [2023-11-29 03:31:47,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 18 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) [2023-11-29 03:31:47,014 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 1781 transitions. [2023-11-29 03:31:47,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-29 03:31:47,016 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:47,016 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] [2023-11-29 03:31:47,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-29 03:31:47,017 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:31:47,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:47,017 INFO L85 PathProgramCache]: Analyzing trace with hash -575345653, now seen corresponding path program 1 times [2023-11-29 03:31:47,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:47,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101112186] [2023-11-29 03:31:47,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:47,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:47,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:47,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:47,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:47,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101112186] [2023-11-29 03:31:47,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101112186] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:47,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:47,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 03:31:47,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661588890] [2023-11-29 03:31:47,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:47,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:31:47,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:47,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:31:47,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:31:47,487 INFO L87 Difference]: Start difference. First operand 1339 states and 1781 transitions. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 9 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) [2023-11-29 03:31:48,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:48,102 INFO L93 Difference]: Finished difference Result 2531 states and 3414 transitions. [2023-11-29 03:31:48,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 03:31:48,102 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 9 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 [2023-11-29 03:31:48,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:48,107 INFO L225 Difference]: With dead ends: 2531 [2023-11-29 03:31:48,107 INFO L226 Difference]: Without dead ends: 2318 [2023-11-29 03:31:48,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2023-11-29 03:31:48,108 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 1654 mSDsluCounter, 1587 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1654 SdHoareTripleChecker+Valid, 2030 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:48,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1654 Valid, 2030 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:31:48,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2023-11-29 03:31:48,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 1292. [2023-11-29 03:31:48,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1292 states, 1290 states have (on average 1.337984496124031) internal successors, (1726), 1291 states have internal predecessors, (1726), 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) [2023-11-29 03:31:48,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1292 states to 1292 states and 1726 transitions. [2023-11-29 03:31:48,132 INFO L78 Accepts]: Start accepts. Automaton has 1292 states and 1726 transitions. Word has length 55 [2023-11-29 03:31:48,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:48,132 INFO L495 AbstractCegarLoop]: Abstraction has 1292 states and 1726 transitions. [2023-11-29 03:31:48,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 9 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) [2023-11-29 03:31:48,133 INFO L276 IsEmpty]: Start isEmpty. Operand 1292 states and 1726 transitions. [2023-11-29 03:31:48,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-29 03:31:48,135 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:48,135 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] [2023-11-29 03:31:48,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-29 03:31:48,136 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:31:48,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:48,136 INFO L85 PathProgramCache]: Analyzing trace with hash 847285262, now seen corresponding path program 1 times [2023-11-29 03:31:48,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:48,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181092723] [2023-11-29 03:31:48,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:48,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:48,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:48,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:48,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:48,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181092723] [2023-11-29 03:31:48,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181092723] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:48,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:48,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-29 03:31:48,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793797767] [2023-11-29 03:31:48,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:48,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 03:31:48,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:48,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 03:31:48,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2023-11-29 03:31:48,976 INFO L87 Difference]: Start difference. First operand 1292 states and 1726 transitions. Second operand has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 14 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) [2023-11-29 03:31:50,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:50,576 INFO L93 Difference]: Finished difference Result 3522 states and 4791 transitions. [2023-11-29 03:31:50,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 03:31:50,577 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 14 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 [2023-11-29 03:31:50,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:50,581 INFO L225 Difference]: With dead ends: 3522 [2023-11-29 03:31:50,581 INFO L226 Difference]: Without dead ends: 3444 [2023-11-29 03:31:50,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=207, Invalid=723, Unknown=0, NotChecked=0, Total=930 [2023-11-29 03:31:50,583 INFO L413 NwaCegarLoop]: 385 mSDtfsCounter, 2193 mSDsluCounter, 3022 mSDsCounter, 0 mSdLazyCounter, 1298 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2193 SdHoareTripleChecker+Valid, 3407 SdHoareTripleChecker+Invalid, 1304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:50,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2193 Valid, 3407 Invalid, 1304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1298 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 03:31:50,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3444 states. [2023-11-29 03:31:50,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3444 to 1283. [2023-11-29 03:31:50,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1283 states, 1282 states have (on average 1.3369734789391576) internal successors, (1714), 1282 states have internal predecessors, (1714), 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) [2023-11-29 03:31:50,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 1714 transitions. [2023-11-29 03:31:50,604 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 1714 transitions. Word has length 56 [2023-11-29 03:31:50,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:50,604 INFO L495 AbstractCegarLoop]: Abstraction has 1283 states and 1714 transitions. [2023-11-29 03:31:50,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 14 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) [2023-11-29 03:31:50,604 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 1714 transitions. [2023-11-29 03:31:50,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-29 03:31:50,606 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:50,606 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:31:50,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-29 03:31:50,606 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:31:50,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:50,607 INFO L85 PathProgramCache]: Analyzing trace with hash 769774794, now seen corresponding path program 1 times [2023-11-29 03:31:50,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:50,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519685582] [2023-11-29 03:31:50,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:50,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:50,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:50,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:50,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:50,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519685582] [2023-11-29 03:31:50,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519685582] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:50,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:50,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:31:50,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627183032] [2023-11-29 03:31:50,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:50,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:31:50,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:50,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:31:50,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:31:50,717 INFO L87 Difference]: Start difference. First operand 1283 states and 1714 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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) [2023-11-29 03:31:50,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:50,792 INFO L93 Difference]: Finished difference Result 3006 states and 4147 transitions. [2023-11-29 03:31:50,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:31:50,793 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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 62 [2023-11-29 03:31:50,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:50,797 INFO L225 Difference]: With dead ends: 3006 [2023-11-29 03:31:50,797 INFO L226 Difference]: Without dead ends: 2296 [2023-11-29 03:31:50,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:31:50,799 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 905 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 905 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:50,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [905 Valid, 619 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:31:50,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2296 states. [2023-11-29 03:31:50,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2296 to 1961. [2023-11-29 03:31:50,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1961 states, 1960 states have (on average 1.3448979591836734) internal successors, (2636), 1960 states have internal predecessors, (2636), 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) [2023-11-29 03:31:50,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1961 states to 1961 states and 2636 transitions. [2023-11-29 03:31:50,839 INFO L78 Accepts]: Start accepts. Automaton has 1961 states and 2636 transitions. Word has length 62 [2023-11-29 03:31:50,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:50,839 INFO L495 AbstractCegarLoop]: Abstraction has 1961 states and 2636 transitions. [2023-11-29 03:31:50,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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) [2023-11-29 03:31:50,839 INFO L276 IsEmpty]: Start isEmpty. Operand 1961 states and 2636 transitions. [2023-11-29 03:31:50,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-29 03:31:50,843 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:50,844 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] [2023-11-29 03:31:50,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-29 03:31:50,844 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:31:50,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:50,845 INFO L85 PathProgramCache]: Analyzing trace with hash 124569911, now seen corresponding path program 1 times [2023-11-29 03:31:50,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:50,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305613345] [2023-11-29 03:31:50,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:50,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:50,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:50,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:50,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:50,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305613345] [2023-11-29 03:31:50,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305613345] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:50,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:50,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:31:50,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276755523] [2023-11-29 03:31:50,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:50,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:31:50,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:50,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:31:50,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:31:50,952 INFO L87 Difference]: Start difference. First operand 1961 states and 2636 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 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) [2023-11-29 03:31:51,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:51,026 INFO L93 Difference]: Finished difference Result 1967 states and 2639 transitions. [2023-11-29 03:31:51,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:31:51,028 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 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 63 [2023-11-29 03:31:51,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:51,031 INFO L225 Difference]: With dead ends: 1967 [2023-11-29 03:31:51,031 INFO L226 Difference]: Without dead ends: 1756 [2023-11-29 03:31:51,031 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 [2023-11-29 03:31:51,032 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 442 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:51,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [442 Valid, 664 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:31:51,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1756 states. [2023-11-29 03:31:51,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1756 to 1752. [2023-11-29 03:31:51,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1752 states, 1751 states have (on average 1.3489434608794975) internal successors, (2362), 1751 states have internal predecessors, (2362), 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) [2023-11-29 03:31:51,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1752 states to 1752 states and 2362 transitions. [2023-11-29 03:31:51,057 INFO L78 Accepts]: Start accepts. Automaton has 1752 states and 2362 transitions. Word has length 63 [2023-11-29 03:31:51,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:51,057 INFO L495 AbstractCegarLoop]: Abstraction has 1752 states and 2362 transitions. [2023-11-29 03:31:51,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 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) [2023-11-29 03:31:51,057 INFO L276 IsEmpty]: Start isEmpty. Operand 1752 states and 2362 transitions. [2023-11-29 03:31:51,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-29 03:31:51,060 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:51,061 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] [2023-11-29 03:31:51,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-29 03:31:51,061 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:31:51,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:51,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1241146152, now seen corresponding path program 1 times [2023-11-29 03:31:51,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:51,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290883894] [2023-11-29 03:31:51,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:51,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:51,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:51,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:51,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:51,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290883894] [2023-11-29 03:31:51,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290883894] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:51,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:51,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:31:51,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807113083] [2023-11-29 03:31:51,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:51,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:31:51,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:51,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:31:51,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:31:51,162 INFO L87 Difference]: Start difference. First operand 1752 states and 2362 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2023-11-29 03:31:51,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:51,192 INFO L93 Difference]: Finished difference Result 3944 states and 5408 transitions. [2023-11-29 03:31:51,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:31:51,193 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 64 [2023-11-29 03:31:51,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:51,198 INFO L225 Difference]: With dead ends: 3944 [2023-11-29 03:31:51,198 INFO L226 Difference]: Without dead ends: 2798 [2023-11-29 03:31:51,199 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 [2023-11-29 03:31:51,200 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 121 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:51,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 479 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:31:51,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2798 states. [2023-11-29 03:31:51,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2798 to 2644. [2023-11-29 03:31:51,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2644 states, 2643 states have (on average 1.3590616723420357) internal successors, (3592), 2643 states have internal predecessors, (3592), 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) [2023-11-29 03:31:51,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2644 states to 2644 states and 3592 transitions. [2023-11-29 03:31:51,235 INFO L78 Accepts]: Start accepts. Automaton has 2644 states and 3592 transitions. Word has length 64 [2023-11-29 03:31:51,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:51,235 INFO L495 AbstractCegarLoop]: Abstraction has 2644 states and 3592 transitions. [2023-11-29 03:31:51,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2023-11-29 03:31:51,235 INFO L276 IsEmpty]: Start isEmpty. Operand 2644 states and 3592 transitions. [2023-11-29 03:31:51,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-29 03:31:51,238 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:51,238 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] [2023-11-29 03:31:51,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-29 03:31:51,239 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:31:51,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:51,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1501667987, now seen corresponding path program 1 times [2023-11-29 03:31:51,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:51,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874080994] [2023-11-29 03:31:51,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:51,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:51,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:51,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:51,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:51,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874080994] [2023-11-29 03:31:51,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874080994] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:51,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:51,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:31:51,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115795045] [2023-11-29 03:31:51,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:51,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:31:51,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:51,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:31:51,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:31:51,338 INFO L87 Difference]: Start difference. First operand 2644 states and 3592 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 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) [2023-11-29 03:31:51,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:51,384 INFO L93 Difference]: Finished difference Result 6520 states and 8946 transitions. [2023-11-29 03:31:51,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:31:51,384 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 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 [2023-11-29 03:31:51,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:51,393 INFO L225 Difference]: With dead ends: 6520 [2023-11-29 03:31:51,393 INFO L226 Difference]: Without dead ends: 4482 [2023-11-29 03:31:51,396 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 [2023-11-29 03:31:51,397 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 99 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:51,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 472 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:31:51,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4482 states. [2023-11-29 03:31:51,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4482 to 4176. [2023-11-29 03:31:51,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4176 states, 4175 states have (on average 1.361437125748503) internal successors, (5684), 4175 states have internal predecessors, (5684), 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) [2023-11-29 03:31:51,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4176 states to 4176 states and 5684 transitions. [2023-11-29 03:31:51,484 INFO L78 Accepts]: Start accepts. Automaton has 4176 states and 5684 transitions. Word has length 66 [2023-11-29 03:31:51,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:51,485 INFO L495 AbstractCegarLoop]: Abstraction has 4176 states and 5684 transitions. [2023-11-29 03:31:51,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 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) [2023-11-29 03:31:51,485 INFO L276 IsEmpty]: Start isEmpty. Operand 4176 states and 5684 transitions. [2023-11-29 03:31:51,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-29 03:31:51,488 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:51,488 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:31:51,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-29 03:31:51,488 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:31:51,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:51,489 INFO L85 PathProgramCache]: Analyzing trace with hash -478130679, now seen corresponding path program 1 times [2023-11-29 03:31:51,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:51,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794187898] [2023-11-29 03:31:51,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:51,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:51,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:51,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:51,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:51,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794187898] [2023-11-29 03:31:51,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794187898] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:51,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:51,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:31:51,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36303180] [2023-11-29 03:31:51,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:51,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:31:51,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:51,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:31:51,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:31:51,683 INFO L87 Difference]: Start difference. First operand 4176 states and 5684 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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) [2023-11-29 03:31:51,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:51,775 INFO L93 Difference]: Finished difference Result 8736 states and 11712 transitions. [2023-11-29 03:31:51,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:31:51,776 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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 68 [2023-11-29 03:31:51,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:51,792 INFO L225 Difference]: With dead ends: 8736 [2023-11-29 03:31:51,792 INFO L226 Difference]: Without dead ends: 8734 [2023-11-29 03:31:51,794 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 [2023-11-29 03:31:51,795 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 337 mSDsluCounter, 912 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 1195 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:51,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 1195 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:31:51,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8734 states. [2023-11-29 03:31:51,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8734 to 4512. [2023-11-29 03:31:51,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4512 states, 4511 states have (on average 1.3345156284637552) internal successors, (6020), 4511 states have internal predecessors, (6020), 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) [2023-11-29 03:31:51,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4512 states to 4512 states and 6020 transitions. [2023-11-29 03:31:51,875 INFO L78 Accepts]: Start accepts. Automaton has 4512 states and 6020 transitions. Word has length 68 [2023-11-29 03:31:51,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:51,875 INFO L495 AbstractCegarLoop]: Abstraction has 4512 states and 6020 transitions. [2023-11-29 03:31:51,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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) [2023-11-29 03:31:51,876 INFO L276 IsEmpty]: Start isEmpty. Operand 4512 states and 6020 transitions. [2023-11-29 03:31:51,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-29 03:31:51,878 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:51,879 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] [2023-11-29 03:31:51,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-29 03:31:51,879 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:31:51,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:51,879 INFO L85 PathProgramCache]: Analyzing trace with hash 104693518, now seen corresponding path program 1 times [2023-11-29 03:31:51,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:51,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452477989] [2023-11-29 03:31:51,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:51,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:51,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:51,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:51,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:51,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452477989] [2023-11-29 03:31:51,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452477989] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:51,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:51,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:31:51,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534925274] [2023-11-29 03:31:51,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:51,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:31:51,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:51,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:31:51,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:31:51,937 INFO L87 Difference]: Start difference. First operand 4512 states and 6020 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) [2023-11-29 03:31:51,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:51,993 INFO L93 Difference]: Finished difference Result 11516 states and 15408 transitions. [2023-11-29 03:31:51,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:31:51,994 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 [2023-11-29 03:31:51,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:52,007 INFO L225 Difference]: With dead ends: 11516 [2023-11-29 03:31:52,007 INFO L226 Difference]: Without dead ends: 7490 [2023-11-29 03:31:52,012 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 [2023-11-29 03:31:52,012 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 151 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:52,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 370 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:31:52,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7490 states. [2023-11-29 03:31:52,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7490 to 7376. [2023-11-29 03:31:52,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7376 states, 7375 states have (on average 1.304677966101695) internal successors, (9622), 7375 states have internal predecessors, (9622), 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) [2023-11-29 03:31:52,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7376 states to 7376 states and 9622 transitions. [2023-11-29 03:31:52,139 INFO L78 Accepts]: Start accepts. Automaton has 7376 states and 9622 transitions. Word has length 69 [2023-11-29 03:31:52,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:52,140 INFO L495 AbstractCegarLoop]: Abstraction has 7376 states and 9622 transitions. [2023-11-29 03:31:52,140 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) [2023-11-29 03:31:52,140 INFO L276 IsEmpty]: Start isEmpty. Operand 7376 states and 9622 transitions. [2023-11-29 03:31:52,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-29 03:31:52,143 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:52,144 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] [2023-11-29 03:31:52,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-29 03:31:52,144 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:31:52,144 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:52,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1936865220, now seen corresponding path program 1 times [2023-11-29 03:31:52,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:52,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943860109] [2023-11-29 03:31:52,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:52,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:52,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:52,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:52,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:52,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943860109] [2023-11-29 03:31:52,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943860109] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:52,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:52,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:31:52,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548854152] [2023-11-29 03:31:52,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:52,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:31:52,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:52,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:31:52,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:31:52,242 INFO L87 Difference]: Start difference. First operand 7376 states and 9622 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2023-11-29 03:31:52,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:52,306 INFO L93 Difference]: Finished difference Result 18140 states and 23664 transitions. [2023-11-29 03:31:52,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:31:52,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 70 [2023-11-29 03:31:52,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:52,324 INFO L225 Difference]: With dead ends: 18140 [2023-11-29 03:31:52,325 INFO L226 Difference]: Without dead ends: 11228 [2023-11-29 03:31:52,332 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 [2023-11-29 03:31:52,333 INFO L413 NwaCegarLoop]: 303 mSDtfsCounter, 116 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:52,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 470 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:31:52,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11228 states. [2023-11-29 03:31:52,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11228 to 10202. [2023-11-29 03:31:52,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10202 states, 10201 states have (on average 1.291638074698559) internal successors, (13176), 10201 states have internal predecessors, (13176), 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) [2023-11-29 03:31:52,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10202 states to 10202 states and 13176 transitions. [2023-11-29 03:31:52,474 INFO L78 Accepts]: Start accepts. Automaton has 10202 states and 13176 transitions. Word has length 70 [2023-11-29 03:31:52,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:52,474 INFO L495 AbstractCegarLoop]: Abstraction has 10202 states and 13176 transitions. [2023-11-29 03:31:52,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2023-11-29 03:31:52,474 INFO L276 IsEmpty]: Start isEmpty. Operand 10202 states and 13176 transitions. [2023-11-29 03:31:52,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-29 03:31:52,477 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:52,477 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] [2023-11-29 03:31:52,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-29 03:31:52,477 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:31:52,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:52,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1277043299, now seen corresponding path program 1 times [2023-11-29 03:31:52,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:52,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622544442] [2023-11-29 03:31:52,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:52,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:52,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:52,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:52,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:52,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622544442] [2023-11-29 03:31:52,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622544442] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:52,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:52,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:31:52,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116110465] [2023-11-29 03:31:52,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:52,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:31:52,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:52,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:31:52,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:31:52,605 INFO L87 Difference]: Start difference. First operand 10202 states and 13176 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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) [2023-11-29 03:31:52,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:52,704 INFO L93 Difference]: Finished difference Result 15070 states and 19597 transitions. [2023-11-29 03:31:52,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:31:52,705 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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 70 [2023-11-29 03:31:52,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:52,727 INFO L225 Difference]: With dead ends: 15070 [2023-11-29 03:31:52,727 INFO L226 Difference]: Without dead ends: 12848 [2023-11-29 03:31:52,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:31:52,733 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 541 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:52,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [541 Valid, 717 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:31:52,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12848 states. [2023-11-29 03:31:52,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12848 to 11672. [2023-11-29 03:31:52,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11672 states, 11671 states have (on average 1.2890926227401251) internal successors, (15045), 11671 states have internal predecessors, (15045), 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) [2023-11-29 03:31:52,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11672 states to 11672 states and 15045 transitions. [2023-11-29 03:31:52,884 INFO L78 Accepts]: Start accepts. Automaton has 11672 states and 15045 transitions. Word has length 70 [2023-11-29 03:31:52,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:52,884 INFO L495 AbstractCegarLoop]: Abstraction has 11672 states and 15045 transitions. [2023-11-29 03:31:52,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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) [2023-11-29 03:31:52,884 INFO L276 IsEmpty]: Start isEmpty. Operand 11672 states and 15045 transitions. [2023-11-29 03:31:52,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-29 03:31:52,887 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:52,887 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] [2023-11-29 03:31:52,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-29 03:31:52,887 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:31:52,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:52,888 INFO L85 PathProgramCache]: Analyzing trace with hash 2119562081, now seen corresponding path program 1 times [2023-11-29 03:31:52,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:52,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764510360] [2023-11-29 03:31:52,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:52,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:52,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:52,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:52,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:52,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764510360] [2023-11-29 03:31:52,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764510360] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:52,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:52,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:31:52,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071990237] [2023-11-29 03:31:52,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:52,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:31:52,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:52,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:31:52,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:31:52,991 INFO L87 Difference]: Start difference. First operand 11672 states and 15045 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 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) [2023-11-29 03:31:53,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:53,085 INFO L93 Difference]: Finished difference Result 15766 states and 20445 transitions. [2023-11-29 03:31:53,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:31:53,086 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 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 74 [2023-11-29 03:31:53,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:53,111 INFO L225 Difference]: With dead ends: 15766 [2023-11-29 03:31:53,111 INFO L226 Difference]: Without dead ends: 13544 [2023-11-29 03:31:53,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:31:53,117 INFO L413 NwaCegarLoop]: 303 mSDtfsCounter, 554 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:53,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [554 Valid, 684 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:31:53,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13544 states. [2023-11-29 03:31:53,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13544 to 13134. [2023-11-29 03:31:53,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13134 states, 13133 states have (on average 1.287215411558669) internal successors, (16905), 13133 states have internal predecessors, (16905), 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) [2023-11-29 03:31:53,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13134 states to 13134 states and 16905 transitions. [2023-11-29 03:31:53,323 INFO L78 Accepts]: Start accepts. Automaton has 13134 states and 16905 transitions. Word has length 74 [2023-11-29 03:31:53,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:53,323 INFO L495 AbstractCegarLoop]: Abstraction has 13134 states and 16905 transitions. [2023-11-29 03:31:53,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 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) [2023-11-29 03:31:53,323 INFO L276 IsEmpty]: Start isEmpty. Operand 13134 states and 16905 transitions. [2023-11-29 03:31:53,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-29 03:31:53,329 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:53,329 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:31:53,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-11-29 03:31:53,329 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:31:53,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:53,330 INFO L85 PathProgramCache]: Analyzing trace with hash -702336876, now seen corresponding path program 1 times [2023-11-29 03:31:53,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:53,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102630710] [2023-11-29 03:31:53,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:53,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:53,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:53,589 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 03:31:53,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:53,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102630710] [2023-11-29 03:31:53,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102630710] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:53,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:53,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 03:31:53,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791842774] [2023-11-29 03:31:53,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:53,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:31:53,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:53,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:31:53,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:31:53,591 INFO L87 Difference]: Start difference. First operand 13134 states and 16905 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 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) [2023-11-29 03:31:54,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:54,208 INFO L93 Difference]: Finished difference Result 37560 states and 48347 transitions. [2023-11-29 03:31:54,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 03:31:54,208 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 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 88 [2023-11-29 03:31:54,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:54,273 INFO L225 Difference]: With dead ends: 37560 [2023-11-29 03:31:54,274 INFO L226 Difference]: Without dead ends: 31088 [2023-11-29 03:31:54,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-11-29 03:31:54,287 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 1289 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1289 SdHoareTripleChecker+Valid, 821 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:54,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1289 Valid, 821 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:31:54,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31088 states. [2023-11-29 03:31:54,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31088 to 13114. [2023-11-29 03:31:54,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13114 states, 13113 states have (on average 1.2872721726530925) internal successors, (16880), 13113 states have internal predecessors, (16880), 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) [2023-11-29 03:31:54,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13114 states to 13114 states and 16880 transitions. [2023-11-29 03:31:54,551 INFO L78 Accepts]: Start accepts. Automaton has 13114 states and 16880 transitions. Word has length 88 [2023-11-29 03:31:54,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:54,551 INFO L495 AbstractCegarLoop]: Abstraction has 13114 states and 16880 transitions. [2023-11-29 03:31:54,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 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) [2023-11-29 03:31:54,551 INFO L276 IsEmpty]: Start isEmpty. Operand 13114 states and 16880 transitions. [2023-11-29 03:31:54,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-29 03:31:54,555 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:54,555 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:31:54,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-11-29 03:31:54,555 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:31:54,556 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:54,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1448961012, now seen corresponding path program 1 times [2023-11-29 03:31:54,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:54,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76139979] [2023-11-29 03:31:54,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:54,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:54,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:54,796 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:54,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:54,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76139979] [2023-11-29 03:31:54,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76139979] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:31:54,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:31:54,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 03:31:54,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501060868] [2023-11-29 03:31:54,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:54,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:31:54,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:54,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:31:54,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:31:54,798 INFO L87 Difference]: Start difference. First operand 13114 states and 16880 transitions. Second operand has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 8 states have internal predecessors, (89), 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) [2023-11-29 03:31:55,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:55,716 INFO L93 Difference]: Finished difference Result 43060 states and 54935 transitions. [2023-11-29 03:31:55,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-29 03:31:55,716 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 8 states have internal predecessors, (89), 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 89 [2023-11-29 03:31:55,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:55,764 INFO L225 Difference]: With dead ends: 43060 [2023-11-29 03:31:55,764 INFO L226 Difference]: Without dead ends: 36628 [2023-11-29 03:31:55,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=224, Invalid=646, Unknown=0, NotChecked=0, Total=870 [2023-11-29 03:31:55,776 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 1086 mSDsluCounter, 927 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1086 SdHoareTripleChecker+Valid, 1159 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:55,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1086 Valid, 1159 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 852 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 03:31:55,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36628 states. [2023-11-29 03:31:56,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36628 to 20547. [2023-11-29 03:31:56,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20547 states, 20546 states have (on average 1.2864304487491482) internal successors, (26431), 20546 states have internal predecessors, (26431), 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) [2023-11-29 03:31:56,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20547 states to 20547 states and 26431 transitions. [2023-11-29 03:31:56,133 INFO L78 Accepts]: Start accepts. Automaton has 20547 states and 26431 transitions. Word has length 89 [2023-11-29 03:31:56,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:56,134 INFO L495 AbstractCegarLoop]: Abstraction has 20547 states and 26431 transitions. [2023-11-29 03:31:56,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 8 states have internal predecessors, (89), 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) [2023-11-29 03:31:56,134 INFO L276 IsEmpty]: Start isEmpty. Operand 20547 states and 26431 transitions. [2023-11-29 03:31:56,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-29 03:31:56,138 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:56,138 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:31:56,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-11-29 03:31:56,139 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:31:56,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:56,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1539291594, now seen corresponding path program 1 times [2023-11-29 03:31:56,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:56,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321832391] [2023-11-29 03:31:56,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:56,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:56,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:56,442 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:56,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:56,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321832391] [2023-11-29 03:31:56,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321832391] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:31:56,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956345965] [2023-11-29 03:31:56,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:56,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:56,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:31:56,447 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:31:56,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 03:31:56,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:56,642 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 03:31:56,651 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:31:57,701 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:57,702 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:31:58,714 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:31:58,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1956345965] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:31:58,714 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 03:31:58,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12, 12] total 29 [2023-11-29 03:31:58,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558848516] [2023-11-29 03:31:58,715 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 03:31:58,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-11-29 03:31:58,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:58,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-11-29 03:31:58,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=772, Unknown=0, NotChecked=0, Total=870 [2023-11-29 03:31:58,718 INFO L87 Difference]: Start difference. First operand 20547 states and 26431 transitions. Second operand has 30 states, 30 states have (on average 7.933333333333334) internal successors, (238), 29 states have internal predecessors, (238), 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) [2023-11-29 03:32:53,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:32:53,713 INFO L93 Difference]: Finished difference Result 225211 states and 284076 transitions. [2023-11-29 03:32:53,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 529 states. [2023-11-29 03:32:53,713 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 7.933333333333334) internal successors, (238), 29 states have internal predecessors, (238), 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 89 [2023-11-29 03:32:53,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:32:53,928 INFO L225 Difference]: With dead ends: 225211 [2023-11-29 03:32:53,928 INFO L226 Difference]: Without dead ends: 215411 [2023-11-29 03:32:53,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 711 GetRequests, 155 SyntacticMatches, 1 SemanticMatches, 555 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147151 ImplicationChecksByTransitivity, 45.9s TimeCoverageRelationStatistics Valid=38153, Invalid=271539, Unknown=0, NotChecked=0, Total=309692 [2023-11-29 03:32:53,985 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 9381 mSDsluCounter, 9476 mSDsCounter, 0 mSdLazyCounter, 8610 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9381 SdHoareTripleChecker+Valid, 10073 SdHoareTripleChecker+Invalid, 8769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 8610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:32:53,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9381 Valid, 10073 Invalid, 8769 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [159 Valid, 8610 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2023-11-29 03:32:54,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215411 states. [2023-11-29 03:32:54,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215411 to 39294. [2023-11-29 03:32:55,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39294 states, 39293 states have (on average 1.2861323899931285) internal successors, (50536), 39293 states have internal predecessors, (50536), 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) [2023-11-29 03:32:55,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39294 states to 39294 states and 50536 transitions. [2023-11-29 03:32:55,060 INFO L78 Accepts]: Start accepts. Automaton has 39294 states and 50536 transitions. Word has length 89 [2023-11-29 03:32:55,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:32:55,060 INFO L495 AbstractCegarLoop]: Abstraction has 39294 states and 50536 transitions. [2023-11-29 03:32:55,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 7.933333333333334) internal successors, (238), 29 states have internal predecessors, (238), 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) [2023-11-29 03:32:55,061 INFO L276 IsEmpty]: Start isEmpty. Operand 39294 states and 50536 transitions. [2023-11-29 03:32:55,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-29 03:32:55,067 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:32:55,067 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:32:55,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 03:32:55,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2023-11-29 03:32:55,268 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:32:55,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:32:55,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1137780821, now seen corresponding path program 1 times [2023-11-29 03:32:55,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:32:55,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862427678] [2023-11-29 03:32:55,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:32:55,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:32:55,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:32:55,454 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 03:32:55,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:32:55,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862427678] [2023-11-29 03:32:55,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862427678] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:32:55,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:32:55,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 03:32:55,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238079575] [2023-11-29 03:32:55,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:32:55,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:32:55,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:32:55,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:32:55,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:32:55,456 INFO L87 Difference]: Start difference. First operand 39294 states and 50536 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 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) [2023-11-29 03:32:56,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:32:56,216 INFO L93 Difference]: Finished difference Result 112531 states and 144595 transitions. [2023-11-29 03:32:56,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 03:32:56,217 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 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 90 [2023-11-29 03:32:56,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:32:56,301 INFO L225 Difference]: With dead ends: 112531 [2023-11-29 03:32:56,301 INFO L226 Difference]: Without dead ends: 88649 [2023-11-29 03:32:56,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:32:56,325 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 690 mSDsluCounter, 952 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:32:56,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 1247 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:32:56,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88649 states. [2023-11-29 03:32:56,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88649 to 39223. [2023-11-29 03:32:56,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39223 states, 39222 states have (on average 1.2862934067615115) internal successors, (50451), 39222 states have internal predecessors, (50451), 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) [2023-11-29 03:32:57,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39223 states to 39223 states and 50451 transitions. [2023-11-29 03:32:57,043 INFO L78 Accepts]: Start accepts. Automaton has 39223 states and 50451 transitions. Word has length 90 [2023-11-29 03:32:57,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:32:57,043 INFO L495 AbstractCegarLoop]: Abstraction has 39223 states and 50451 transitions. [2023-11-29 03:32:57,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 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) [2023-11-29 03:32:57,043 INFO L276 IsEmpty]: Start isEmpty. Operand 39223 states and 50451 transitions. [2023-11-29 03:32:57,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-29 03:32:57,052 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:32:57,052 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:32:57,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-11-29 03:32:57,053 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:32:57,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:32:57,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1519510842, now seen corresponding path program 1 times [2023-11-29 03:32:57,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:32:57,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953260203] [2023-11-29 03:32:57,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:32:57,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:32:57,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:32:57,119 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 03:32:57,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:32:57,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953260203] [2023-11-29 03:32:57,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953260203] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:32:57,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:32:57,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:32:57,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649959175] [2023-11-29 03:32:57,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:32:57,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:32:57,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:32:57,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:32:57,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:32:57,122 INFO L87 Difference]: Start difference. First operand 39223 states and 50451 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2023-11-29 03:32:57,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:32:57,398 INFO L93 Difference]: Finished difference Result 75987 states and 97944 transitions. [2023-11-29 03:32:57,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:32:57,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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 90 [2023-11-29 03:32:57,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:32:57,433 INFO L225 Difference]: With dead ends: 75987 [2023-11-29 03:32:57,433 INFO L226 Difference]: Without dead ends: 37285 [2023-11-29 03:32:57,454 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 [2023-11-29 03:32:57,455 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 181 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:32:57,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 176 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:32:57,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37285 states. [2023-11-29 03:32:57,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37285 to 37285. [2023-11-29 03:32:57,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37285 states, 37284 states have (on average 1.2761506276150627) internal successors, (47580), 37284 states have internal predecessors, (47580), 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) [2023-11-29 03:32:57,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37285 states to 37285 states and 47580 transitions. [2023-11-29 03:32:57,911 INFO L78 Accepts]: Start accepts. Automaton has 37285 states and 47580 transitions. Word has length 90 [2023-11-29 03:32:57,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:32:57,911 INFO L495 AbstractCegarLoop]: Abstraction has 37285 states and 47580 transitions. [2023-11-29 03:32:57,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2023-11-29 03:32:57,911 INFO L276 IsEmpty]: Start isEmpty. Operand 37285 states and 47580 transitions. [2023-11-29 03:32:57,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-29 03:32:57,916 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:32:57,917 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:32:57,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-11-29 03:32:57,917 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:32:57,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:32:57,917 INFO L85 PathProgramCache]: Analyzing trace with hash -433616044, now seen corresponding path program 1 times [2023-11-29 03:32:57,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:32:57,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294410633] [2023-11-29 03:32:57,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:32:57,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:32:57,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:32:58,027 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:32:58,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:32:58,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294410633] [2023-11-29 03:32:58,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294410633] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:32:58,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278993077] [2023-11-29 03:32:58,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:32:58,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:32:58,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:32:58,029 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:32:58,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 03:32:58,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:32:58,202 INFO L262 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 03:32:58,207 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:32:58,346 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:32:58,347 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:32:58,707 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:32:58,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [278993077] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:32:58,707 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 03:32:58,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 7] total 11 [2023-11-29 03:32:58,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206467276] [2023-11-29 03:32:58,708 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 03:32:58,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 03:32:58,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:32:58,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 03:32:58,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:32:58,710 INFO L87 Difference]: Start difference. First operand 37285 states and 47580 transitions. Second operand has 11 states, 11 states have (on average 16.09090909090909) internal successors, (177), 11 states have internal predecessors, (177), 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) [2023-11-29 03:32:59,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:32:59,396 INFO L93 Difference]: Finished difference Result 186938 states and 238562 transitions. [2023-11-29 03:32:59,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 03:32:59,397 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 16.09090909090909) internal successors, (177), 11 states have internal predecessors, (177), 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 90 [2023-11-29 03:32:59,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:32:59,554 INFO L225 Difference]: With dead ends: 186938 [2023-11-29 03:32:59,554 INFO L226 Difference]: Without dead ends: 150174 [2023-11-29 03:32:59,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 172 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:32:59,581 INFO L413 NwaCegarLoop]: 435 mSDtfsCounter, 837 mSDsluCounter, 1545 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 837 SdHoareTripleChecker+Valid, 1980 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:32:59,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [837 Valid, 1980 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:32:59,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150174 states. [2023-11-29 03:33:01,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150174 to 141478. [2023-11-29 03:33:01,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141478 states, 141477 states have (on average 1.2628907879019204) internal successors, (178670), 141477 states have internal predecessors, (178670), 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) [2023-11-29 03:33:01,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141478 states to 141478 states and 178670 transitions. [2023-11-29 03:33:01,492 INFO L78 Accepts]: Start accepts. Automaton has 141478 states and 178670 transitions. Word has length 90 [2023-11-29 03:33:01,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:01,492 INFO L495 AbstractCegarLoop]: Abstraction has 141478 states and 178670 transitions. [2023-11-29 03:33:01,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 16.09090909090909) internal successors, (177), 11 states have internal predecessors, (177), 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) [2023-11-29 03:33:01,492 INFO L276 IsEmpty]: Start isEmpty. Operand 141478 states and 178670 transitions. [2023-11-29 03:33:01,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-29 03:33:01,501 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:01,501 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:33:01,505 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 03:33:01,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2023-11-29 03:33:01,702 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:33:01,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:01,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1315088287, now seen corresponding path program 1 times [2023-11-29 03:33:01,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:01,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639091397] [2023-11-29 03:33:01,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:01,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:01,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:01,924 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:33:01,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:01,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639091397] [2023-11-29 03:33:01,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639091397] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:33:01,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:33:01,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:33:01,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031924244] [2023-11-29 03:33:01,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:33:01,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:33:01,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:01,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:33:01,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:33:01,926 INFO L87 Difference]: Start difference. First operand 141478 states and 178670 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 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) [2023-11-29 03:33:02,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:02,845 INFO L93 Difference]: Finished difference Result 317117 states and 396899 transitions. [2023-11-29 03:33:02,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:33:02,845 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 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 92 [2023-11-29 03:33:02,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:03,111 INFO L225 Difference]: With dead ends: 317117 [2023-11-29 03:33:03,111 INFO L226 Difference]: Without dead ends: 176160 [2023-11-29 03:33:03,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:33:03,150 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 560 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:03,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [560 Valid, 469 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:33:03,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176160 states. [2023-11-29 03:33:04,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176160 to 138430. [2023-11-29 03:33:04,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138430 states, 138429 states have (on average 1.246660743052395) internal successors, (172574), 138429 states have internal predecessors, (172574), 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) [2023-11-29 03:33:04,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138430 states to 138430 states and 172574 transitions. [2023-11-29 03:33:04,980 INFO L78 Accepts]: Start accepts. Automaton has 138430 states and 172574 transitions. Word has length 92 [2023-11-29 03:33:04,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:04,980 INFO L495 AbstractCegarLoop]: Abstraction has 138430 states and 172574 transitions. [2023-11-29 03:33:04,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 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) [2023-11-29 03:33:04,980 INFO L276 IsEmpty]: Start isEmpty. Operand 138430 states and 172574 transitions. [2023-11-29 03:33:04,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-29 03:33:04,988 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:04,988 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:33:04,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-11-29 03:33:04,988 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:33:04,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:04,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1353834030, now seen corresponding path program 1 times [2023-11-29 03:33:04,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:04,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663669098] [2023-11-29 03:33:04,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:04,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:05,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:05,038 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-29 03:33:05,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:05,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663669098] [2023-11-29 03:33:05,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663669098] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:33:05,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:33:05,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:33:05,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968809678] [2023-11-29 03:33:05,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:33:05,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:33:05,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:05,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:33:05,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:33:05,040 INFO L87 Difference]: Start difference. First operand 138430 states and 172574 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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) [2023-11-29 03:33:05,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:05,715 INFO L93 Difference]: Finished difference Result 256632 states and 320301 transitions. [2023-11-29 03:33:05,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:33:05,716 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 94 [2023-11-29 03:33:05,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:05,836 INFO L225 Difference]: With dead ends: 256632 [2023-11-29 03:33:05,836 INFO L226 Difference]: Without dead ends: 118723 [2023-11-29 03:33:05,886 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 [2023-11-29 03:33:05,887 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 173 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:05,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 209 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:33:05,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118723 states. [2023-11-29 03:33:07,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118723 to 118723. [2023-11-29 03:33:07,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118723 states, 118722 states have (on average 1.2299405333468103) internal successors, (146021), 118722 states have internal predecessors, (146021), 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) [2023-11-29 03:33:07,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118723 states to 118723 states and 146021 transitions. [2023-11-29 03:33:07,627 INFO L78 Accepts]: Start accepts. Automaton has 118723 states and 146021 transitions. Word has length 94 [2023-11-29 03:33:07,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:07,629 INFO L495 AbstractCegarLoop]: Abstraction has 118723 states and 146021 transitions. [2023-11-29 03:33:07,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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) [2023-11-29 03:33:07,630 INFO L276 IsEmpty]: Start isEmpty. Operand 118723 states and 146021 transitions. [2023-11-29 03:33:07,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-29 03:33:07,636 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:07,637 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:33:07,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-11-29 03:33:07,637 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:33:07,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:07,637 INFO L85 PathProgramCache]: Analyzing trace with hash -634186171, now seen corresponding path program 1 times [2023-11-29 03:33:07,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:07,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522470648] [2023-11-29 03:33:07,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:07,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:07,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:07,715 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:33:07,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:07,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522470648] [2023-11-29 03:33:07,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522470648] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:33:07,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [643188612] [2023-11-29 03:33:07,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:07,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:33:07,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:33:07,717 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:33:07,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 03:33:07,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:07,910 INFO L262 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 03:33:07,914 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:33:08,137 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:33:08,137 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:33:08,251 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:33:08,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [643188612] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:33:08,252 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 03:33:08,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2023-11-29 03:33:08,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617298448] [2023-11-29 03:33:08,252 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 03:33:08,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 03:33:08,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:08,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 03:33:08,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:33:08,254 INFO L87 Difference]: Start difference. First operand 118723 states and 146021 transitions. Second operand has 14 states, 14 states have (on average 18.0) internal successors, (252), 14 states have internal predecessors, (252), 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) [2023-11-29 03:33:09,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:09,243 INFO L93 Difference]: Finished difference Result 254011 states and 311962 transitions. [2023-11-29 03:33:09,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:33:09,243 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 18.0) internal successors, (252), 14 states have internal predecessors, (252), 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 95 [2023-11-29 03:33:09,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:09,353 INFO L225 Difference]: With dead ends: 254011 [2023-11-29 03:33:09,353 INFO L226 Difference]: Without dead ends: 135758 [2023-11-29 03:33:09,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 182 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=307, Unknown=0, NotChecked=0, Total=420 [2023-11-29 03:33:09,378 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 2159 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2159 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:09,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2159 Valid, 923 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:33:09,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135758 states. [2023-11-29 03:33:10,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135758 to 95028. [2023-11-29 03:33:10,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95028 states, 95027 states have (on average 1.2090037568270071) internal successors, (114888), 95027 states have internal predecessors, (114888), 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) [2023-11-29 03:33:10,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95028 states to 95028 states and 114888 transitions. [2023-11-29 03:33:10,929 INFO L78 Accepts]: Start accepts. Automaton has 95028 states and 114888 transitions. Word has length 95 [2023-11-29 03:33:10,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:10,929 INFO L495 AbstractCegarLoop]: Abstraction has 95028 states and 114888 transitions. [2023-11-29 03:33:10,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 18.0) internal successors, (252), 14 states have internal predecessors, (252), 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) [2023-11-29 03:33:10,930 INFO L276 IsEmpty]: Start isEmpty. Operand 95028 states and 114888 transitions. [2023-11-29 03:33:10,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-29 03:33:10,933 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:10,933 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:33:10,938 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 03:33:11,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-11-29 03:33:11,134 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:33:11,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:11,134 INFO L85 PathProgramCache]: Analyzing trace with hash -563005699, now seen corresponding path program 1 times [2023-11-29 03:33:11,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:11,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475734662] [2023-11-29 03:33:11,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:11,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:11,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:11,233 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:33:11,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:11,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475734662] [2023-11-29 03:33:11,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475734662] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:33:11,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:33:11,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:33:11,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907774650] [2023-11-29 03:33:11,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:33:11,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:33:11,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:11,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:33:11,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:33:11,235 INFO L87 Difference]: Start difference. First operand 95028 states and 114888 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 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) [2023-11-29 03:33:11,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:11,546 INFO L93 Difference]: Finished difference Result 150362 states and 183628 transitions. [2023-11-29 03:33:11,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:33:11,547 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 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 96 [2023-11-29 03:33:11,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:11,653 INFO L225 Difference]: With dead ends: 150362 [2023-11-29 03:33:11,653 INFO L226 Difference]: Without dead ends: 119938 [2023-11-29 03:33:11,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:33:11,682 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 456 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:11,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 710 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:33:11,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119938 states. [2023-11-29 03:33:12,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119938 to 112556. [2023-11-29 03:33:12,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112556 states, 112555 states have (on average 1.2050108835680333) internal successors, (135630), 112555 states have internal predecessors, (135630), 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) [2023-11-29 03:33:13,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112556 states to 112556 states and 135630 transitions. [2023-11-29 03:33:13,017 INFO L78 Accepts]: Start accepts. Automaton has 112556 states and 135630 transitions. Word has length 96 [2023-11-29 03:33:13,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:13,017 INFO L495 AbstractCegarLoop]: Abstraction has 112556 states and 135630 transitions. [2023-11-29 03:33:13,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 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) [2023-11-29 03:33:13,018 INFO L276 IsEmpty]: Start isEmpty. Operand 112556 states and 135630 transitions. [2023-11-29 03:33:13,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-29 03:33:13,022 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:13,023 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:33:13,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-11-29 03:33:13,023 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:33:13,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:13,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1342178627, now seen corresponding path program 1 times [2023-11-29 03:33:13,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:13,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932357793] [2023-11-29 03:33:13,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:13,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:13,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:13,145 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-29 03:33:13,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:13,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932357793] [2023-11-29 03:33:13,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932357793] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:33:13,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:33:13,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:33:13,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988533463] [2023-11-29 03:33:13,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:33:13,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:33:13,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:13,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:33:13,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:33:13,147 INFO L87 Difference]: Start difference. First operand 112556 states and 135630 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 6 states have internal predecessors, (95), 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) [2023-11-29 03:33:13,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:13,659 INFO L93 Difference]: Finished difference Result 154875 states and 185139 transitions. [2023-11-29 03:33:13,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:33:13,660 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 6 states have internal predecessors, (95), 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 100 [2023-11-29 03:33:13,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:13,781 INFO L225 Difference]: With dead ends: 154875 [2023-11-29 03:33:13,781 INFO L226 Difference]: Without dead ends: 130787 [2023-11-29 03:33:13,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-11-29 03:33:13,812 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 1465 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1465 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:13,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1465 Valid, 459 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:33:14,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130787 states. [2023-11-29 03:33:15,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130787 to 112502. [2023-11-29 03:33:15,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112502 states, 112501 states have (on average 1.2050559550581772) internal successors, (135570), 112501 states have internal predecessors, (135570), 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) [2023-11-29 03:33:15,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112502 states to 112502 states and 135570 transitions. [2023-11-29 03:33:15,604 INFO L78 Accepts]: Start accepts. Automaton has 112502 states and 135570 transitions. Word has length 100 [2023-11-29 03:33:15,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:15,604 INFO L495 AbstractCegarLoop]: Abstraction has 112502 states and 135570 transitions. [2023-11-29 03:33:15,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 6 states have internal predecessors, (95), 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) [2023-11-29 03:33:15,604 INFO L276 IsEmpty]: Start isEmpty. Operand 112502 states and 135570 transitions. [2023-11-29 03:33:15,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-29 03:33:15,609 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:15,609 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:33:15,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-11-29 03:33:15,609 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:33:15,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:15,609 INFO L85 PathProgramCache]: Analyzing trace with hash -2032208473, now seen corresponding path program 1 times [2023-11-29 03:33:15,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:15,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175842560] [2023-11-29 03:33:15,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:15,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:15,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:15,689 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:33:15,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:15,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175842560] [2023-11-29 03:33:15,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175842560] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:33:15,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946187296] [2023-11-29 03:33:15,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:15,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:33:15,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:33:15,692 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:33:15,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 03:33:15,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:15,880 INFO L262 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 03:33:15,883 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:33:16,143 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:33:16,143 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:33:16,297 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:33:16,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [946187296] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:33:16,298 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 03:33:16,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2023-11-29 03:33:16,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510179557] [2023-11-29 03:33:16,298 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 03:33:16,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 03:33:16,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:16,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 03:33:16,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:33:16,300 INFO L87 Difference]: Start difference. First operand 112502 states and 135570 transitions. Second operand has 14 states, 14 states have (on average 19.857142857142858) internal successors, (278), 14 states have internal predecessors, (278), 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) [2023-11-29 03:33:17,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:17,356 INFO L93 Difference]: Finished difference Result 273408 states and 326881 transitions. [2023-11-29 03:33:17,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:33:17,357 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 19.857142857142858) internal successors, (278), 14 states have internal predecessors, (278), 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 101 [2023-11-29 03:33:17,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:17,504 INFO L225 Difference]: With dead ends: 273408 [2023-11-29 03:33:17,504 INFO L226 Difference]: Without dead ends: 161358 [2023-11-29 03:33:17,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 194 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=307, Unknown=0, NotChecked=0, Total=420 [2023-11-29 03:33:17,552 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 2605 mSDsluCounter, 703 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2605 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:17,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2605 Valid, 857 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:33:17,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161358 states. [2023-11-29 03:33:19,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161358 to 117710. [2023-11-29 03:33:19,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117710 states, 117709 states have (on average 1.1991096687593983) internal successors, (141146), 117709 states have internal predecessors, (141146), 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) [2023-11-29 03:33:19,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117710 states to 117710 states and 141146 transitions. [2023-11-29 03:33:19,236 INFO L78 Accepts]: Start accepts. Automaton has 117710 states and 141146 transitions. Word has length 101 [2023-11-29 03:33:19,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:19,236 INFO L495 AbstractCegarLoop]: Abstraction has 117710 states and 141146 transitions. [2023-11-29 03:33:19,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 19.857142857142858) internal successors, (278), 14 states have internal predecessors, (278), 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) [2023-11-29 03:33:19,237 INFO L276 IsEmpty]: Start isEmpty. Operand 117710 states and 141146 transitions. [2023-11-29 03:33:19,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-29 03:33:19,243 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:19,243 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:33:19,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-29 03:33:19,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:33:19,444 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:33:19,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:19,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1576626704, now seen corresponding path program 1 times [2023-11-29 03:33:19,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:19,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741749208] [2023-11-29 03:33:19,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:19,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:19,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:19,503 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:33:19,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:19,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741749208] [2023-11-29 03:33:19,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741749208] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:33:19,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:33:19,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:33:19,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459557158] [2023-11-29 03:33:19,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:33:19,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:33:19,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:19,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:33:19,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:33:19,505 INFO L87 Difference]: Start difference. First operand 117710 states and 141146 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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) [2023-11-29 03:33:19,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:19,901 INFO L93 Difference]: Finished difference Result 167450 states and 200636 transitions. [2023-11-29 03:33:19,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:33:19,901 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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 101 [2023-11-29 03:33:19,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:20,035 INFO L225 Difference]: With dead ends: 167450 [2023-11-29 03:33:20,035 INFO L226 Difference]: Without dead ends: 120280 [2023-11-29 03:33:20,072 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 [2023-11-29 03:33:20,072 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 71 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:20,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 482 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:33:20,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120280 states. [2023-11-29 03:33:21,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120280 to 113708. [2023-11-29 03:33:21,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113708 states, 113707 states have (on average 1.194904447395499) internal successors, (135869), 113707 states have internal predecessors, (135869), 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) [2023-11-29 03:33:21,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113708 states to 113708 states and 135869 transitions. [2023-11-29 03:33:21,716 INFO L78 Accepts]: Start accepts. Automaton has 113708 states and 135869 transitions. Word has length 101 [2023-11-29 03:33:21,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:21,716 INFO L495 AbstractCegarLoop]: Abstraction has 113708 states and 135869 transitions. [2023-11-29 03:33:21,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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) [2023-11-29 03:33:21,717 INFO L276 IsEmpty]: Start isEmpty. Operand 113708 states and 135869 transitions. [2023-11-29 03:33:21,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-29 03:33:21,721 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:21,721 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:33:21,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-11-29 03:33:21,721 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:33:21,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:21,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1079123396, now seen corresponding path program 1 times [2023-11-29 03:33:21,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:21,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294016781] [2023-11-29 03:33:21,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:21,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:21,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:22,662 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:33:22,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:22,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294016781] [2023-11-29 03:33:22,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294016781] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:33:22,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:33:22,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-11-29 03:33:22,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179903708] [2023-11-29 03:33:22,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:33:22,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 03:33:22,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:22,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 03:33:22,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:33:22,664 INFO L87 Difference]: Start difference. First operand 113708 states and 135869 transitions. Second operand has 17 states, 17 states have (on average 5.9411764705882355) internal successors, (101), 16 states have internal predecessors, (101), 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) [2023-11-29 03:33:27,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:27,320 INFO L93 Difference]: Finished difference Result 215934 states and 259524 transitions. [2023-11-29 03:33:27,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-11-29 03:33:27,321 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.9411764705882355) internal successors, (101), 16 states have internal predecessors, (101), 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 101 [2023-11-29 03:33:27,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:27,718 INFO L225 Difference]: With dead ends: 215934 [2023-11-29 03:33:27,718 INFO L226 Difference]: Without dead ends: 207604 [2023-11-29 03:33:27,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1082 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1028, Invalid=3394, Unknown=0, NotChecked=0, Total=4422 [2023-11-29 03:33:27,750 INFO L413 NwaCegarLoop]: 550 mSDtfsCounter, 2115 mSDsluCounter, 5073 mSDsCounter, 0 mSdLazyCounter, 1394 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2115 SdHoareTripleChecker+Valid, 5623 SdHoareTripleChecker+Invalid, 1404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:27,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2115 Valid, 5623 Invalid, 1404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1394 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 03:33:27,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207604 states. [2023-11-29 03:33:29,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207604 to 120814. [2023-11-29 03:33:29,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120814 states, 120813 states have (on average 1.1969986673619561) internal successors, (144613), 120813 states have internal predecessors, (144613), 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) [2023-11-29 03:33:29,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120814 states to 120814 states and 144613 transitions. [2023-11-29 03:33:29,570 INFO L78 Accepts]: Start accepts. Automaton has 120814 states and 144613 transitions. Word has length 101 [2023-11-29 03:33:29,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:29,571 INFO L495 AbstractCegarLoop]: Abstraction has 120814 states and 144613 transitions. [2023-11-29 03:33:29,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.9411764705882355) internal successors, (101), 16 states have internal predecessors, (101), 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) [2023-11-29 03:33:29,571 INFO L276 IsEmpty]: Start isEmpty. Operand 120814 states and 144613 transitions. [2023-11-29 03:33:29,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-29 03:33:29,576 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:29,576 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:33:29,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-11-29 03:33:29,576 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:33:29,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:29,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1494513025, now seen corresponding path program 1 times [2023-11-29 03:33:29,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:29,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504059401] [2023-11-29 03:33:29,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:29,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:29,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:29,625 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 03:33:29,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:29,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504059401] [2023-11-29 03:33:29,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504059401] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:33:29,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:33:29,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:33:29,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040116526] [2023-11-29 03:33:29,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:33:29,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:33:29,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:29,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:33:29,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:33:29,627 INFO L87 Difference]: Start difference. First operand 120814 states and 144613 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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) [2023-11-29 03:33:30,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:30,370 INFO L93 Difference]: Finished difference Result 238504 states and 284829 transitions. [2023-11-29 03:33:30,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:33:30,371 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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 101 [2023-11-29 03:33:30,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:30,534 INFO L225 Difference]: With dead ends: 238504 [2023-11-29 03:33:30,534 INFO L226 Difference]: Without dead ends: 188241 [2023-11-29 03:33:30,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:33:30,580 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 280 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:30,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 597 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:33:30,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188241 states. [2023-11-29 03:33:32,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188241 to 134060. [2023-11-29 03:33:32,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134060 states, 134059 states have (on average 1.1940041325088206) internal successors, (160067), 134059 states have internal predecessors, (160067), 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) [2023-11-29 03:33:32,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134060 states to 134060 states and 160067 transitions. [2023-11-29 03:33:32,484 INFO L78 Accepts]: Start accepts. Automaton has 134060 states and 160067 transitions. Word has length 101 [2023-11-29 03:33:32,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:32,484 INFO L495 AbstractCegarLoop]: Abstraction has 134060 states and 160067 transitions. [2023-11-29 03:33:32,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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) [2023-11-29 03:33:32,484 INFO L276 IsEmpty]: Start isEmpty. Operand 134060 states and 160067 transitions. [2023-11-29 03:33:32,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 03:33:32,495 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:32,495 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:33:32,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-11-29 03:33:32,495 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:33:32,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:32,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1818593712, now seen corresponding path program 1 times [2023-11-29 03:33:32,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:32,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355626081] [2023-11-29 03:33:32,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:32,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:32,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:32,604 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:33:32,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:32,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355626081] [2023-11-29 03:33:32,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355626081] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:33:32,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:33:32,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:33:32,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849420605] [2023-11-29 03:33:32,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:33:32,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:33:32,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:32,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:33:32,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:33:32,606 INFO L87 Difference]: Start difference. First operand 134060 states and 160067 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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) [2023-11-29 03:33:33,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:33,071 INFO L93 Difference]: Finished difference Result 256405 states and 304821 transitions. [2023-11-29 03:33:33,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:33:33,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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 103 [2023-11-29 03:33:33,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:33,182 INFO L225 Difference]: With dead ends: 256405 [2023-11-29 03:33:33,182 INFO L226 Difference]: Without dead ends: 122808 [2023-11-29 03:33:33,235 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 [2023-11-29 03:33:33,236 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 110 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:33,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 372 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:33:33,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122808 states. [2023-11-29 03:33:34,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122808 to 122578. [2023-11-29 03:33:34,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122578 states, 122577 states have (on average 1.1638888209044111) internal successors, (142666), 122577 states have internal predecessors, (142666), 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) [2023-11-29 03:33:34,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122578 states to 122578 states and 142666 transitions. [2023-11-29 03:33:34,778 INFO L78 Accepts]: Start accepts. Automaton has 122578 states and 142666 transitions. Word has length 103 [2023-11-29 03:33:34,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:34,779 INFO L495 AbstractCegarLoop]: Abstraction has 122578 states and 142666 transitions. [2023-11-29 03:33:34,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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) [2023-11-29 03:33:34,779 INFO L276 IsEmpty]: Start isEmpty. Operand 122578 states and 142666 transitions. [2023-11-29 03:33:34,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 03:33:34,782 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:34,782 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:33:34,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-11-29 03:33:34,782 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:33:34,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:34,783 INFO L85 PathProgramCache]: Analyzing trace with hash -954179453, now seen corresponding path program 1 times [2023-11-29 03:33:34,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:34,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875324806] [2023-11-29 03:33:34,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:34,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:34,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:34,829 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-29 03:33:34,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:34,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875324806] [2023-11-29 03:33:34,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875324806] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:33:34,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:33:34,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:33:34,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194483137] [2023-11-29 03:33:34,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:33:34,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:33:34,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:34,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:33:34,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:33:34,831 INFO L87 Difference]: Start difference. First operand 122578 states and 142666 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2023-11-29 03:33:35,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:35,301 INFO L93 Difference]: Finished difference Result 224631 states and 261526 transitions. [2023-11-29 03:33:35,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:33:35,301 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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 104 [2023-11-29 03:33:35,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:35,446 INFO L225 Difference]: With dead ends: 224631 [2023-11-29 03:33:35,446 INFO L226 Difference]: Without dead ends: 176471 [2023-11-29 03:33:35,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:33:35,488 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 364 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:35,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 525 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:33:35,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176471 states. [2023-11-29 03:33:37,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176471 to 142014. [2023-11-29 03:33:37,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142014 states, 142013 states have (on average 1.1654285171075887) internal successors, (165506), 142013 states have internal predecessors, (165506), 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) [2023-11-29 03:33:37,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142014 states to 142014 states and 165506 transitions. [2023-11-29 03:33:37,475 INFO L78 Accepts]: Start accepts. Automaton has 142014 states and 165506 transitions. Word has length 104 [2023-11-29 03:33:37,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:37,475 INFO L495 AbstractCegarLoop]: Abstraction has 142014 states and 165506 transitions. [2023-11-29 03:33:37,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2023-11-29 03:33:37,475 INFO L276 IsEmpty]: Start isEmpty. Operand 142014 states and 165506 transitions. [2023-11-29 03:33:37,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 03:33:37,481 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:37,481 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:33:37,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-11-29 03:33:37,481 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:33:37,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:37,481 INFO L85 PathProgramCache]: Analyzing trace with hash 705041960, now seen corresponding path program 1 times [2023-11-29 03:33:37,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:37,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598110346] [2023-11-29 03:33:37,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:37,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:37,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:37,924 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:33:37,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:37,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598110346] [2023-11-29 03:33:37,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598110346] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:33:37,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1823743499] [2023-11-29 03:33:37,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:37,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:33:37,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:33:37,926 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:33:37,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 03:33:38,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:38,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 03:33:38,107 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:33:38,562 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:33:38,563 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:33:38,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1823743499] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:33:38,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:33:38,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 21 [2023-11-29 03:33:38,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999446343] [2023-11-29 03:33:38,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:33:38,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:33:38,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:38,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:33:38,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2023-11-29 03:33:38,564 INFO L87 Difference]: Start difference. First operand 142014 states and 165506 transitions. Second operand has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 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) [2023-11-29 03:33:39,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:39,732 INFO L93 Difference]: Finished difference Result 233408 states and 272452 transitions. [2023-11-29 03:33:39,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 03:33:39,732 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 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 104 [2023-11-29 03:33:39,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:39,877 INFO L225 Difference]: With dead ends: 233408 [2023-11-29 03:33:39,877 INFO L226 Difference]: Without dead ends: 171666 [2023-11-29 03:33:39,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=163, Invalid=893, Unknown=0, NotChecked=0, Total=1056 [2023-11-29 03:33:39,920 INFO L413 NwaCegarLoop]: 414 mSDtfsCounter, 755 mSDsluCounter, 2293 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 755 SdHoareTripleChecker+Valid, 2707 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:39,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [755 Valid, 2707 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:33:40,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171666 states. [2023-11-29 03:33:41,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171666 to 161235. [2023-11-29 03:33:41,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161235 states, 161234 states have (on average 1.164469032586179) internal successors, (187752), 161234 states have internal predecessors, (187752), 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) [2023-11-29 03:33:41,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161235 states to 161235 states and 187752 transitions. [2023-11-29 03:33:41,800 INFO L78 Accepts]: Start accepts. Automaton has 161235 states and 187752 transitions. Word has length 104 [2023-11-29 03:33:41,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:41,800 INFO L495 AbstractCegarLoop]: Abstraction has 161235 states and 187752 transitions. [2023-11-29 03:33:41,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 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) [2023-11-29 03:33:41,801 INFO L276 IsEmpty]: Start isEmpty. Operand 161235 states and 187752 transitions. [2023-11-29 03:33:41,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 03:33:41,804 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:41,805 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:33:41,809 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 03:33:42,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2023-11-29 03:33:42,005 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:33:42,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:42,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1152869224, now seen corresponding path program 1 times [2023-11-29 03:33:42,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:42,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519157605] [2023-11-29 03:33:42,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:42,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:42,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:42,546 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:33:42,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:42,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519157605] [2023-11-29 03:33:42,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519157605] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:33:42,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1488758996] [2023-11-29 03:33:42,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:42,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:33:42,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:33:42,548 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:33:42,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 03:33:42,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:42,722 INFO L262 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 03:33:42,725 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:33:43,302 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:33:43,302 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:33:44,163 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:33:44,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1488758996] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:33:44,163 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 03:33:44,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 32 [2023-11-29 03:33:44,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776509169] [2023-11-29 03:33:44,164 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 03:33:44,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-11-29 03:33:44,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:44,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-11-29 03:33:44,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=905, Unknown=0, NotChecked=0, Total=992 [2023-11-29 03:33:44,166 INFO L87 Difference]: Start difference. First operand 161235 states and 187752 transitions. Second operand has 32 states, 32 states have (on average 8.96875) internal successors, (287), 32 states have internal predecessors, (287), 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) [2023-11-29 03:34:39,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:34:39,746 INFO L93 Difference]: Finished difference Result 861626 states and 992387 transitions. [2023-11-29 03:34:39,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 401 states. [2023-11-29 03:34:39,747 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 8.96875) internal successors, (287), 32 states have internal predecessors, (287), 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 104 [2023-11-29 03:34:39,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:34:40,669 INFO L225 Difference]: With dead ends: 861626 [2023-11-29 03:34:40,669 INFO L226 Difference]: Without dead ends: 823256 [2023-11-29 03:34:40,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 619 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 429 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80553 ImplicationChecksByTransitivity, 45.4s TimeCoverageRelationStatistics Valid=18542, Invalid=166788, Unknown=0, NotChecked=0, Total=185330 [2023-11-29 03:34:40,840 INFO L413 NwaCegarLoop]: 426 mSDtfsCounter, 11201 mSDsluCounter, 9116 mSDsCounter, 0 mSdLazyCounter, 8646 mSolverCounterSat, 216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11201 SdHoareTripleChecker+Valid, 9542 SdHoareTripleChecker+Invalid, 8862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 216 IncrementalHoareTripleChecker+Valid, 8646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:34:40,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11201 Valid, 9542 Invalid, 8862 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [216 Valid, 8646 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2023-11-29 03:34:41,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823256 states. [2023-11-29 03:34:45,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823256 to 161408. [2023-11-29 03:34:46,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161408 states, 161407 states have (on average 1.1644414430600902) internal successors, (187949), 161407 states have internal predecessors, (187949), 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) [2023-11-29 03:34:46,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161408 states to 161408 states and 187949 transitions. [2023-11-29 03:34:46,307 INFO L78 Accepts]: Start accepts. Automaton has 161408 states and 187949 transitions. Word has length 104 [2023-11-29 03:34:46,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:34:46,307 INFO L495 AbstractCegarLoop]: Abstraction has 161408 states and 187949 transitions. [2023-11-29 03:34:46,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 8.96875) internal successors, (287), 32 states have internal predecessors, (287), 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) [2023-11-29 03:34:46,308 INFO L276 IsEmpty]: Start isEmpty. Operand 161408 states and 187949 transitions. [2023-11-29 03:34:46,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 03:34:46,313 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:34:46,313 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:34:46,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-29 03:34:46,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd3d84-7a40-4468-bda6-6c636a3a4a99/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2023-11-29 03:34:46,514 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 03:34:46,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:34:46,514 INFO L85 PathProgramCache]: Analyzing trace with hash 815578692, now seen corresponding path program 1 times [2023-11-29 03:34:46,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:34:46,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776143590] [2023-11-29 03:34:46,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:34:46,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:34:46,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:34:46,705 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-29 03:34:46,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:34:46,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776143590] [2023-11-29 03:34:46,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776143590] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:34:46,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:34:46,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 03:34:46,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110038708] [2023-11-29 03:34:46,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:34:46,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:34:46,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:34:46,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:34:46,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:34:46,708 INFO L87 Difference]: Start difference. First operand 161408 states and 187949 transitions. Second operand has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 states have internal predecessors, (99), 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) [2023-11-29 03:34:47,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:34:47,655 INFO L93 Difference]: Finished difference Result 258767 states and 301778 transitions. [2023-11-29 03:34:47,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 03:34:47,656 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 states have internal predecessors, (99), 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 104 [2023-11-29 03:34:47,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:34:47,893 INFO L225 Difference]: With dead ends: 258767 [2023-11-29 03:34:47,893 INFO L226 Difference]: Without dead ends: 228058 [2023-11-29 03:34:47,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:34:47,949 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 1048 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1048 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:34:47,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1048 Valid, 806 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:34:48,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228058 states.