./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_16bae8fd-cb7d-4a63-9596-b1140d2c7f6f/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16bae8fd-cb7d-4a63-9596-b1140d2c7f6f/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16bae8fd-cb7d-4a63-9596-b1140d2c7f6f/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16bae8fd-cb7d-4a63-9596-b1140d2c7f6f/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16bae8fd-cb7d-4a63-9596-b1140d2c7f6f/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16bae8fd-cb7d-4a63-9596-b1140d2c7f6f/bin/uautomizer-verify-jihMAELWvX --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 82b978acf3e870955535549d16879da8eac705f6c266c172b47775a3acd47fc6 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:29:37,414 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:29:37,478 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16bae8fd-cb7d-4a63-9596-b1140d2c7f6f/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 16:29:37,483 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:29:37,484 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:29:37,509 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:29:37,509 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:29:37,510 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:29:37,510 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:29:37,511 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:29:37,511 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:29:37,512 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:29:37,513 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:29:37,513 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:29:37,514 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:29:37,514 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:29:37,515 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:29:37,518 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:29:37,518 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:29:37,519 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:29:37,519 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:29:37,520 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:29:37,520 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:29:37,521 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:29:37,521 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:29:37,522 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:29:37,522 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:29:37,523 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:29:37,523 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:29:37,523 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:29:37,528 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:29:37,528 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:29:37,529 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:29:37,529 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:29:37,530 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:29:37,530 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:29:37,530 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:29:37,531 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:29:37,531 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:29:37,531 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:29:37,535 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:29:37,535 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:29:37,535 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_16bae8fd-cb7d-4a63-9596-b1140d2c7f6f/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16bae8fd-cb7d-4a63-9596-b1140d2c7f6f/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82b978acf3e870955535549d16879da8eac705f6c266c172b47775a3acd47fc6 [2024-11-08 16:29:37,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:29:37,824 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:29:37,827 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:29:37,828 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:29:37,829 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:29:37,830 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16bae8fd-cb7d-4a63-9596-b1140d2c7f6f/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c Unable to find full path for "g++" [2024-11-08 16:29:39,867 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:29:40,558 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:29:40,560 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16bae8fd-cb7d-4a63-9596-b1140d2c7f6f/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2024-11-08 16:29:40,640 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16bae8fd-cb7d-4a63-9596-b1140d2c7f6f/bin/uautomizer-verify-jihMAELWvX/data/b70205c35/4c77fbc2925b48c79f4830022ce0146c/FLAG24873625f [2024-11-08 16:29:40,663 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16bae8fd-cb7d-4a63-9596-b1140d2c7f6f/bin/uautomizer-verify-jihMAELWvX/data/b70205c35/4c77fbc2925b48c79f4830022ce0146c [2024-11-08 16:29:40,668 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:29:40,672 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:29:40,674 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:29:40,674 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:29:40,683 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:29:40,684 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:29:40" (1/1) ... [2024-11-08 16:29:40,687 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c2271d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:29:40, skipping insertion in model container [2024-11-08 16:29:40,687 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:29:40" (1/1) ... [2024-11-08 16:29:41,155 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:29:42,303 WARN L250 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_16bae8fd-cb7d-4a63-9596-b1140d2c7f6f/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[40132,40145] [2024-11-08 16:29:46,469 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:29:46,489 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:29:46,848 WARN L250 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_16bae8fd-cb7d-4a63-9596-b1140d2c7f6f/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[40132,40145] [2024-11-08 16:29:50,559 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:29:50,606 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:29:50,607 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:29:50 WrapperNode [2024-11-08 16:29:50,608 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:29:50,609 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:29:50,609 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:29:50,610 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:29:50,619 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:29:50" (1/1) ... [2024-11-08 16:29:50,721 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:29:50" (1/1) ... [2024-11-08 16:29:51,285 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23599 [2024-11-08 16:29:51,286 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:29:51,287 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:29:51,288 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:29:51,288 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:29:51,302 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:29:50" (1/1) ... [2024-11-08 16:29:51,303 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:29:50" (1/1) ... [2024-11-08 16:29:51,395 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:29:50" (1/1) ... [2024-11-08 16:29:51,656 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]. [2024-11-08 16:29:51,656 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:29:50" (1/1) ... [2024-11-08 16:29:51,656 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:29:50" (1/1) ... [2024-11-08 16:29:51,914 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:29:50" (1/1) ... [2024-11-08 16:29:52,093 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:29:50" (1/1) ... [2024-11-08 16:29:52,173 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:29:50" (1/1) ... [2024-11-08 16:29:52,233 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:29:50" (1/1) ... [2024-11-08 16:29:52,337 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:29:52,342 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:29:52,342 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:29:52,342 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:29:52,343 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:29:50" (1/1) ... [2024-11-08 16:29:52,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:29:52,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16bae8fd-cb7d-4a63-9596-b1140d2c7f6f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:29:52,424 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16bae8fd-cb7d-4a63-9596-b1140d2c7f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:29:52,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16bae8fd-cb7d-4a63-9596-b1140d2c7f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:29:52,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:29:52,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 16:29:52,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:29:52,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:29:53,025 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:29:53,028 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:30:10,512 INFO L? ?]: Removed 1185 outVars from TransFormulas that were not future-live. [2024-11-08 16:30:10,512 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:30:10,598 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:30:10,598 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 16:30:10,599 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:30:10 BoogieIcfgContainer [2024-11-08 16:30:10,599 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:30:10,602 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:30:10,602 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:30:10,605 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:30:10,606 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:29:40" (1/3) ... [2024-11-08 16:30:10,607 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59d13d28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:30:10, skipping insertion in model container [2024-11-08 16:30:10,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:29:50" (2/3) ... [2024-11-08 16:30:10,607 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59d13d28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:30:10, skipping insertion in model container [2024-11-08 16:30:10,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:30:10" (3/3) ... [2024-11-08 16:30:10,609 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2024-11-08 16:30:10,629 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:30:10,629 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 16:30:10,843 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:30:10,853 INFO L333 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, 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;@4bf3adb2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:30:10,854 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 16:30:10,887 INFO L276 IsEmpty]: Start isEmpty. Operand has 6844 states, 6842 states have (on average 1.7497807658579363) internal successors, (11972), 6843 states have internal predecessors, (11972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:10,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2024-11-08 16:30:10,987 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:30:10,989 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:30:10,990 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:30:10,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:30:10,997 INFO L85 PathProgramCache]: Analyzing trace with hash 2031760327, now seen corresponding path program 1 times [2024-11-08 16:30:11,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:30:11,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471737010] [2024-11-08 16:30:11,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:30:11,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:30:11,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:30:12,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:30:12,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:30:12,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471737010] [2024-11-08 16:30:12,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471737010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:30:12,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:30:12,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:30:12,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447694675] [2024-11-08 16:30:12,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:30:12,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:30:12,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:30:12,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:30:12,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:30:12,641 INFO L87 Difference]: Start difference. First operand has 6844 states, 6842 states have (on average 1.7497807658579363) internal successors, (11972), 6843 states have internal predecessors, (11972), 0 states have call successors, (0), 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 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:13,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:30:13,381 INFO L93 Difference]: Finished difference Result 13660 states and 23679 transitions. [2024-11-08 16:30:13,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:30:13,387 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 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 368 [2024-11-08 16:30:13,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:30:13,455 INFO L225 Difference]: With dead ends: 13660 [2024-11-08 16:30:13,455 INFO L226 Difference]: Without dead ends: 8156 [2024-11-08 16:30:13,471 INFO L431 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 [2024-11-08 16:30:13,477 INFO L432 NwaCegarLoop]: 13690 mSDtfsCounter, 8105 mSDsluCounter, 5999 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8105 SdHoareTripleChecker+Valid, 19689 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:30:13,479 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8105 Valid, 19689 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [25 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:30:13,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8156 states. [2024-11-08 16:30:13,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8156 to 8154. [2024-11-08 16:30:13,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8154 states, 8153 states have (on average 1.6766834294124862) internal successors, (13670), 8153 states have internal predecessors, (13670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:13,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8154 states to 8154 states and 13670 transitions. [2024-11-08 16:30:13,824 INFO L78 Accepts]: Start accepts. Automaton has 8154 states and 13670 transitions. Word has length 368 [2024-11-08 16:30:13,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:30:13,827 INFO L471 AbstractCegarLoop]: Abstraction has 8154 states and 13670 transitions. [2024-11-08 16:30:13,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:13,829 INFO L276 IsEmpty]: Start isEmpty. Operand 8154 states and 13670 transitions. [2024-11-08 16:30:13,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2024-11-08 16:30:13,858 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:30:13,859 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:30:13,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:30:13,860 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:30:13,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:30:13,861 INFO L85 PathProgramCache]: Analyzing trace with hash -774974886, now seen corresponding path program 1 times [2024-11-08 16:30:13,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:30:13,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607993293] [2024-11-08 16:30:13,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:30:13,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:30:14,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:30:14,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:30:14,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:30:14,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607993293] [2024-11-08 16:30:14,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607993293] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:30:14,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:30:14,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:30:14,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680130519] [2024-11-08 16:30:14,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:30:14,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:30:14,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:30:14,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:30:14,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:30:14,626 INFO L87 Difference]: Start difference. First operand 8154 states and 13670 transitions. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:15,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:30:15,710 INFO L93 Difference]: Finished difference Result 17823 states and 29983 transitions. [2024-11-08 16:30:15,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:30:15,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 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 368 [2024-11-08 16:30:15,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:30:15,758 INFO L225 Difference]: With dead ends: 17823 [2024-11-08 16:30:15,759 INFO L226 Difference]: Without dead ends: 10831 [2024-11-08 16:30:15,772 INFO L431 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 [2024-11-08 16:30:15,774 INFO L432 NwaCegarLoop]: 12943 mSDtfsCounter, 6918 mSDsluCounter, 5982 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6918 SdHoareTripleChecker+Valid, 18925 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 16:30:15,775 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6918 Valid, 18925 Invalid, 433 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [213 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 16:30:15,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10831 states. [2024-11-08 16:30:16,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10831 to 10829. [2024-11-08 16:30:16,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10829 states, 10828 states have (on average 1.6746398226819357) internal successors, (18133), 10828 states have internal predecessors, (18133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:16,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10829 states to 10829 states and 18133 transitions. [2024-11-08 16:30:16,202 INFO L78 Accepts]: Start accepts. Automaton has 10829 states and 18133 transitions. Word has length 368 [2024-11-08 16:30:16,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:30:16,205 INFO L471 AbstractCegarLoop]: Abstraction has 10829 states and 18133 transitions. [2024-11-08 16:30:16,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:16,210 INFO L276 IsEmpty]: Start isEmpty. Operand 10829 states and 18133 transitions. [2024-11-08 16:30:16,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2024-11-08 16:30:16,254 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:30:16,255 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:30:16,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 16:30:16,256 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:30:16,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:30:16,258 INFO L85 PathProgramCache]: Analyzing trace with hash -498494000, now seen corresponding path program 1 times [2024-11-08 16:30:16,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:30:16,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237492612] [2024-11-08 16:30:16,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:30:16,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:30:16,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:30:17,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:30:17,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:30:17,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237492612] [2024-11-08 16:30:17,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237492612] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:30:17,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:30:17,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:30:17,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962031586] [2024-11-08 16:30:17,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:30:17,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:30:17,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:30:17,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:30:17,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:30:17,133 INFO L87 Difference]: Start difference. First operand 10829 states and 18133 transitions. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:19,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:30:19,257 INFO L93 Difference]: Finished difference Result 20310 states and 33986 transitions. [2024-11-08 16:30:19,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:30:19,259 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 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 368 [2024-11-08 16:30:19,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:30:19,346 INFO L225 Difference]: With dead ends: 20310 [2024-11-08 16:30:19,346 INFO L226 Difference]: Without dead ends: 18448 [2024-11-08 16:30:19,356 INFO L431 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 [2024-11-08 16:30:19,358 INFO L432 NwaCegarLoop]: 9243 mSDtfsCounter, 7383 mSDsluCounter, 7286 mSDsCounter, 0 mSdLazyCounter, 1370 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7383 SdHoareTripleChecker+Valid, 16529 SdHoareTripleChecker+Invalid, 1426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-08 16:30:19,360 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7383 Valid, 16529 Invalid, 1426 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [56 Valid, 1370 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-08 16:30:19,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18448 states. [2024-11-08 16:30:19,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18448 to 18446. [2024-11-08 16:30:19,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18446 states, 18445 states have (on average 1.6680943345079968) internal successors, (30768), 18445 states have internal predecessors, (30768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:19,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18446 states to 18446 states and 30768 transitions. [2024-11-08 16:30:19,862 INFO L78 Accepts]: Start accepts. Automaton has 18446 states and 30768 transitions. Word has length 368 [2024-11-08 16:30:19,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:30:19,863 INFO L471 AbstractCegarLoop]: Abstraction has 18446 states and 30768 transitions. [2024-11-08 16:30:19,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:19,863 INFO L276 IsEmpty]: Start isEmpty. Operand 18446 states and 30768 transitions. [2024-11-08 16:30:19,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2024-11-08 16:30:19,913 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:30:19,914 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:30:19,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 16:30:19,914 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:30:19,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:30:19,916 INFO L85 PathProgramCache]: Analyzing trace with hash -229485808, now seen corresponding path program 1 times [2024-11-08 16:30:19,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:30:19,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769519057] [2024-11-08 16:30:19,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:30:19,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:30:20,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:30:20,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:30:20,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:30:20,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769519057] [2024-11-08 16:30:20,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769519057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:30:20,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:30:20,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:30:20,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172612608] [2024-11-08 16:30:20,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:30:20,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:30:20,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:30:20,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:30:20,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:30:20,405 INFO L87 Difference]: Start difference. First operand 18446 states and 30768 transitions. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:21,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:30:21,346 INFO L93 Difference]: Finished difference Result 20782 states and 34620 transitions. [2024-11-08 16:30:21,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:30:21,347 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 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 368 [2024-11-08 16:30:21,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:30:21,404 INFO L225 Difference]: With dead ends: 20782 [2024-11-08 16:30:21,405 INFO L226 Difference]: Without dead ends: 19284 [2024-11-08 16:30:21,415 INFO L431 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 [2024-11-08 16:30:21,417 INFO L432 NwaCegarLoop]: 10416 mSDtfsCounter, 7387 mSDsluCounter, 5640 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7387 SdHoareTripleChecker+Valid, 16056 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 16:30:21,417 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7387 Valid, 16056 Invalid, 480 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [100 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 16:30:21,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19284 states. [2024-11-08 16:30:21,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19284 to 19198. [2024-11-08 16:30:21,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19198 states, 19197 states have (on average 1.6655727457415221) internal successors, (31974), 19197 states have internal predecessors, (31974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:22,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19198 states to 19198 states and 31974 transitions. [2024-11-08 16:30:22,027 INFO L78 Accepts]: Start accepts. Automaton has 19198 states and 31974 transitions. Word has length 368 [2024-11-08 16:30:22,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:30:22,028 INFO L471 AbstractCegarLoop]: Abstraction has 19198 states and 31974 transitions. [2024-11-08 16:30:22,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:22,029 INFO L276 IsEmpty]: Start isEmpty. Operand 19198 states and 31974 transitions. [2024-11-08 16:30:22,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2024-11-08 16:30:22,076 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:30:22,077 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:30:22,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 16:30:22,077 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:30:22,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:30:22,078 INFO L85 PathProgramCache]: Analyzing trace with hash -641113627, now seen corresponding path program 1 times [2024-11-08 16:30:22,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:30:22,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67457537] [2024-11-08 16:30:22,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:30:22,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:30:22,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:30:23,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:30:23,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:30:23,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67457537] [2024-11-08 16:30:23,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67457537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:30:23,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:30:23,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:30:23,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926478068] [2024-11-08 16:30:23,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:30:23,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:30:23,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:30:23,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:30:23,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:30:23,545 INFO L87 Difference]: Start difference. First operand 19198 states and 31974 transitions. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:23,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:30:23,971 INFO L93 Difference]: Finished difference Result 45448 states and 75756 transitions. [2024-11-08 16:30:23,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:30:23,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 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 368 [2024-11-08 16:30:23,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:30:24,039 INFO L225 Difference]: With dead ends: 45448 [2024-11-08 16:30:24,039 INFO L226 Difference]: Without dead ends: 27630 [2024-11-08 16:30:24,064 INFO L431 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 [2024-11-08 16:30:24,067 INFO L432 NwaCegarLoop]: 13037 mSDtfsCounter, 4009 mSDsluCounter, 9473 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4009 SdHoareTripleChecker+Valid, 22510 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:30:24,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4009 Valid, 22510 Invalid, 33 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:30:24,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27630 states. [2024-11-08 16:30:24,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27630 to 27296. [2024-11-08 16:30:24,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27296 states, 27295 states have (on average 1.66257556328998) internal successors, (45380), 27295 states have internal predecessors, (45380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:24,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27296 states to 27296 states and 45380 transitions. [2024-11-08 16:30:24,790 INFO L78 Accepts]: Start accepts. Automaton has 27296 states and 45380 transitions. Word has length 368 [2024-11-08 16:30:24,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:30:24,791 INFO L471 AbstractCegarLoop]: Abstraction has 27296 states and 45380 transitions. [2024-11-08 16:30:24,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:24,791 INFO L276 IsEmpty]: Start isEmpty. Operand 27296 states and 45380 transitions. [2024-11-08 16:30:24,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2024-11-08 16:30:24,836 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:30:24,837 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:30:24,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 16:30:24,837 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:30:24,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:30:24,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1593380083, now seen corresponding path program 1 times [2024-11-08 16:30:24,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:30:24,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68992386] [2024-11-08 16:30:24,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:30:24,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:30:25,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:30:26,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:30:26,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:30:26,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68992386] [2024-11-08 16:30:26,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68992386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:30:26,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:30:26,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:30:26,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431578149] [2024-11-08 16:30:26,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:30:26,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:30:26,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:30:26,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:30:26,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:30:26,073 INFO L87 Difference]: Start difference. First operand 27296 states and 45380 transitions. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:27,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:30:27,029 INFO L93 Difference]: Finished difference Result 67682 states and 112987 transitions. [2024-11-08 16:30:27,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:30:27,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 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 368 [2024-11-08 16:30:27,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:30:27,135 INFO L225 Difference]: With dead ends: 67682 [2024-11-08 16:30:27,135 INFO L226 Difference]: Without dead ends: 43400 [2024-11-08 16:30:27,164 INFO L431 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 [2024-11-08 16:30:27,166 INFO L432 NwaCegarLoop]: 13241 mSDtfsCounter, 4297 mSDsluCounter, 9534 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4297 SdHoareTripleChecker+Valid, 22775 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 16:30:27,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4297 Valid, 22775 Invalid, 334 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [62 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 16:30:27,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43400 states. [2024-11-08 16:30:27,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43400 to 40766. [2024-11-08 16:30:27,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40766 states, 40765 states have (on average 1.6526186679749786) internal successors, (67369), 40765 states have internal predecessors, (67369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:28,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40766 states to 40766 states and 67369 transitions. [2024-11-08 16:30:28,105 INFO L78 Accepts]: Start accepts. Automaton has 40766 states and 67369 transitions. Word has length 368 [2024-11-08 16:30:28,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:30:28,106 INFO L471 AbstractCegarLoop]: Abstraction has 40766 states and 67369 transitions. [2024-11-08 16:30:28,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:28,106 INFO L276 IsEmpty]: Start isEmpty. Operand 40766 states and 67369 transitions. [2024-11-08 16:30:28,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2024-11-08 16:30:28,163 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:30:28,163 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:30:28,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 16:30:28,164 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:30:28,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:30:28,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1927501190, now seen corresponding path program 1 times [2024-11-08 16:30:28,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:30:28,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089149382] [2024-11-08 16:30:28,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:30:28,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:30:28,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:30:29,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:30:29,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:30:29,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089149382] [2024-11-08 16:30:29,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089149382] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:30:29,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:30:29,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:30:29,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899722293] [2024-11-08 16:30:29,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:30:29,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:30:29,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:30:29,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:30:29,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:30:29,664 INFO L87 Difference]: Start difference. First operand 40766 states and 67369 transitions. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:30,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:30:30,430 INFO L93 Difference]: Finished difference Result 59210 states and 98735 transitions. [2024-11-08 16:30:30,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:30:30,431 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 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 368 [2024-11-08 16:30:30,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:30:30,473 INFO L225 Difference]: With dead ends: 59210 [2024-11-08 16:30:30,474 INFO L226 Difference]: Without dead ends: 22936 [2024-11-08 16:30:30,505 INFO L431 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 [2024-11-08 16:30:30,506 INFO L432 NwaCegarLoop]: 7302 mSDtfsCounter, 4749 mSDsluCounter, 2482 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4749 SdHoareTripleChecker+Valid, 9784 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 16:30:30,507 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4749 Valid, 9784 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 16:30:30,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22936 states. [2024-11-08 16:30:30,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22936 to 20934. [2024-11-08 16:30:30,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20934 states, 20933 states have (on average 1.6668896001528686) internal successors, (34893), 20933 states have internal predecessors, (34893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:31,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20934 states to 20934 states and 34893 transitions. [2024-11-08 16:30:31,022 INFO L78 Accepts]: Start accepts. Automaton has 20934 states and 34893 transitions. Word has length 368 [2024-11-08 16:30:31,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:30:31,023 INFO L471 AbstractCegarLoop]: Abstraction has 20934 states and 34893 transitions. [2024-11-08 16:30:31,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:31,024 INFO L276 IsEmpty]: Start isEmpty. Operand 20934 states and 34893 transitions. [2024-11-08 16:30:31,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2024-11-08 16:30:31,055 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:30:31,055 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:30:31,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 16:30:31,056 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:30:31,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:30:31,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1024903943, now seen corresponding path program 1 times [2024-11-08 16:30:31,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:30:31,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180291701] [2024-11-08 16:30:31,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:30:31,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:30:31,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:30:32,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:30:32,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:30:32,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180291701] [2024-11-08 16:30:32,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180291701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:30:32,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:30:32,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:30:32,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601444076] [2024-11-08 16:30:32,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:30:32,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:30:32,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:30:32,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:30:32,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:30:32,207 INFO L87 Difference]: Start difference. First operand 20934 states and 34893 transitions. Second operand has 7 states, 7 states have (on average 53.142857142857146) internal successors, (372), 7 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:33,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:30:33,509 INFO L93 Difference]: Finished difference Result 66867 states and 112320 transitions. [2024-11-08 16:30:33,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 16:30:33,510 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 53.142857142857146) internal successors, (372), 7 states have internal predecessors, (372), 0 states have call successors, (0), 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 372 [2024-11-08 16:30:33,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:30:33,625 INFO L225 Difference]: With dead ends: 66867 [2024-11-08 16:30:33,625 INFO L226 Difference]: Without dead ends: 62209 [2024-11-08 16:30:33,647 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-11-08 16:30:33,648 INFO L432 NwaCegarLoop]: 7034 mSDtfsCounter, 23677 mSDsluCounter, 19705 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23677 SdHoareTripleChecker+Valid, 26739 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 16:30:33,650 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23677 Valid, 26739 Invalid, 432 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [21 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 16:30:33,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62209 states. [2024-11-08 16:30:34,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62209 to 25575. [2024-11-08 16:30:34,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25575 states, 25574 states have (on average 1.665050441855009) internal successors, (42582), 25574 states have internal predecessors, (42582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:34,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25575 states to 25575 states and 42582 transitions. [2024-11-08 16:30:34,510 INFO L78 Accepts]: Start accepts. Automaton has 25575 states and 42582 transitions. Word has length 372 [2024-11-08 16:30:34,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:30:34,511 INFO L471 AbstractCegarLoop]: Abstraction has 25575 states and 42582 transitions. [2024-11-08 16:30:34,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 53.142857142857146) internal successors, (372), 7 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:34,512 INFO L276 IsEmpty]: Start isEmpty. Operand 25575 states and 42582 transitions. [2024-11-08 16:30:34,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2024-11-08 16:30:34,534 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:30:34,535 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:30:34,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 16:30:34,535 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:30:34,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:30:34,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1093040572, now seen corresponding path program 1 times [2024-11-08 16:30:34,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:30:34,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895227298] [2024-11-08 16:30:34,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:30:34,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:30:34,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:30:35,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:30:35,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:30:35,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895227298] [2024-11-08 16:30:35,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895227298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:30:35,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:30:35,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:30:35,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049738206] [2024-11-08 16:30:35,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:30:35,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:30:35,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:30:35,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:30:35,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:30:35,124 INFO L87 Difference]: Start difference. First operand 25575 states and 42582 transitions. Second operand has 4 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:35,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:30:35,610 INFO L93 Difference]: Finished difference Result 53029 states and 88705 transitions. [2024-11-08 16:30:35,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:30:35,611 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 0 states have call successors, (0), 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 373 [2024-11-08 16:30:35,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:30:35,673 INFO L225 Difference]: With dead ends: 53029 [2024-11-08 16:30:35,673 INFO L226 Difference]: Without dead ends: 43867 [2024-11-08 16:30:35,687 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:30:35,688 INFO L432 NwaCegarLoop]: 7047 mSDtfsCounter, 8483 mSDsluCounter, 6839 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8483 SdHoareTripleChecker+Valid, 13886 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:30:35,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8483 Valid, 13886 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:30:35,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43867 states. [2024-11-08 16:30:36,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43867 to 34687. [2024-11-08 16:30:36,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34687 states, 34686 states have (on average 1.6665513463645274) internal successors, (57806), 34686 states have internal predecessors, (57806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:36,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34687 states to 34687 states and 57806 transitions. [2024-11-08 16:30:36,270 INFO L78 Accepts]: Start accepts. Automaton has 34687 states and 57806 transitions. Word has length 373 [2024-11-08 16:30:36,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:30:36,271 INFO L471 AbstractCegarLoop]: Abstraction has 34687 states and 57806 transitions. [2024-11-08 16:30:36,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:36,272 INFO L276 IsEmpty]: Start isEmpty. Operand 34687 states and 57806 transitions. [2024-11-08 16:30:36,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2024-11-08 16:30:36,293 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:30:36,293 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:30:36,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 16:30:36,294 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:30:36,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:30:36,295 INFO L85 PathProgramCache]: Analyzing trace with hash -913707892, now seen corresponding path program 1 times [2024-11-08 16:30:36,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:30:36,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038172073] [2024-11-08 16:30:36,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:30:36,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:30:36,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:30:37,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:30:37,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:30:37,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038172073] [2024-11-08 16:30:37,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038172073] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:30:37,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:30:37,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:30:37,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466226696] [2024-11-08 16:30:37,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:30:37,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:30:37,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:30:37,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:30:37,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:30:37,131 INFO L87 Difference]: Start difference. First operand 34687 states and 57806 transitions. Second operand has 7 states, 7 states have (on average 53.285714285714285) internal successors, (373), 7 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:38,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:30:38,430 INFO L93 Difference]: Finished difference Result 126003 states and 210860 transitions. [2024-11-08 16:30:38,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 16:30:38,431 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 53.285714285714285) internal successors, (373), 7 states have internal predecessors, (373), 0 states have call successors, (0), 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 373 [2024-11-08 16:30:38,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:30:38,622 INFO L225 Difference]: With dead ends: 126003 [2024-11-08 16:30:38,622 INFO L226 Difference]: Without dead ends: 107745 [2024-11-08 16:30:38,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-08 16:30:38,665 INFO L432 NwaCegarLoop]: 7744 mSDtfsCounter, 16899 mSDsluCounter, 17347 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16899 SdHoareTripleChecker+Valid, 25091 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 16:30:38,667 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16899 Valid, 25091 Invalid, 363 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 16:30:38,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107745 states. [2024-11-08 16:30:40,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107745 to 52927. [2024-11-08 16:30:40,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52927 states, 52926 states have (on average 1.6690095605184598) internal successors, (88334), 52926 states have internal predecessors, (88334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:40,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52927 states to 52927 states and 88334 transitions. [2024-11-08 16:30:40,513 INFO L78 Accepts]: Start accepts. Automaton has 52927 states and 88334 transitions. Word has length 373 [2024-11-08 16:30:40,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:30:40,516 INFO L471 AbstractCegarLoop]: Abstraction has 52927 states and 88334 transitions. [2024-11-08 16:30:40,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 53.285714285714285) internal successors, (373), 7 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:40,516 INFO L276 IsEmpty]: Start isEmpty. Operand 52927 states and 88334 transitions. [2024-11-08 16:30:40,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2024-11-08 16:30:40,538 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:30:40,539 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:30:40,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 16:30:40,539 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:30:40,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:30:40,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1660071515, now seen corresponding path program 1 times [2024-11-08 16:30:40,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:30:40,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354551879] [2024-11-08 16:30:40,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:30:40,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:30:40,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:30:41,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:30:41,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:30:41,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354551879] [2024-11-08 16:30:41,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354551879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:30:41,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:30:41,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:30:41,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671974172] [2024-11-08 16:30:41,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:30:41,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:30:41,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:30:41,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:30:41,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:30:41,725 INFO L87 Difference]: Start difference. First operand 52927 states and 88334 transitions. Second operand has 7 states, 7 states have (on average 53.285714285714285) internal successors, (373), 7 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:42,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:30:42,964 INFO L93 Difference]: Finished difference Result 144260 states and 241405 transitions. [2024-11-08 16:30:42,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 16:30:42,965 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 53.285714285714285) internal successors, (373), 7 states have internal predecessors, (373), 0 states have call successors, (0), 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 373 [2024-11-08 16:30:42,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:30:43,145 INFO L225 Difference]: With dead ends: 144260 [2024-11-08 16:30:43,145 INFO L226 Difference]: Without dead ends: 126002 [2024-11-08 16:30:43,190 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-08 16:30:43,191 INFO L432 NwaCegarLoop]: 7681 mSDtfsCounter, 16809 mSDsluCounter, 21420 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16809 SdHoareTripleChecker+Valid, 29101 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 16:30:43,191 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16809 Valid, 29101 Invalid, 517 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 16:30:43,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126002 states. [2024-11-08 16:30:44,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126002 to 80320. [2024-11-08 16:30:44,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80320 states, 80319 states have (on average 1.669928659470362) internal successors, (134127), 80319 states have internal predecessors, (134127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:45,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80320 states to 80320 states and 134127 transitions. [2024-11-08 16:30:45,031 INFO L78 Accepts]: Start accepts. Automaton has 80320 states and 134127 transitions. Word has length 373 [2024-11-08 16:30:45,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:30:45,031 INFO L471 AbstractCegarLoop]: Abstraction has 80320 states and 134127 transitions. [2024-11-08 16:30:45,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 53.285714285714285) internal successors, (373), 7 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:45,032 INFO L276 IsEmpty]: Start isEmpty. Operand 80320 states and 134127 transitions. [2024-11-08 16:30:45,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2024-11-08 16:30:45,050 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:30:45,051 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:30:45,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 16:30:45,052 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:30:45,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:30:45,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1626815138, now seen corresponding path program 1 times [2024-11-08 16:30:45,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:30:45,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702199772] [2024-11-08 16:30:45,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:30:45,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:30:45,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:30:46,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:30:46,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:30:46,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702199772] [2024-11-08 16:30:46,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702199772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:30:46,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:30:46,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:30:46,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328759959] [2024-11-08 16:30:46,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:30:46,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:30:46,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:30:46,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:30:46,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:30:46,628 INFO L87 Difference]: Start difference. First operand 80320 states and 134127 transitions. Second operand has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:48,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:30:48,028 INFO L93 Difference]: Finished difference Result 226222 states and 376728 transitions. [2024-11-08 16:30:48,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:30:48,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 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 373 [2024-11-08 16:30:48,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:30:48,221 INFO L225 Difference]: With dead ends: 226222 [2024-11-08 16:30:48,221 INFO L226 Difference]: Without dead ends: 147946 [2024-11-08 16:30:48,256 INFO L431 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 [2024-11-08 16:30:48,257 INFO L432 NwaCegarLoop]: 8429 mSDtfsCounter, 5172 mSDsluCounter, 4564 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5172 SdHoareTripleChecker+Valid, 12993 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:30:48,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5172 Valid, 12993 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:30:48,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147946 states. [2024-11-08 16:30:50,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147946 to 133904. [2024-11-08 16:30:50,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133904 states, 133903 states have (on average 1.6597686384920427) internal successors, (222248), 133903 states have internal predecessors, (222248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:50,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133904 states to 133904 states and 222248 transitions. [2024-11-08 16:30:50,660 INFO L78 Accepts]: Start accepts. Automaton has 133904 states and 222248 transitions. Word has length 373 [2024-11-08 16:30:50,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:30:50,661 INFO L471 AbstractCegarLoop]: Abstraction has 133904 states and 222248 transitions. [2024-11-08 16:30:50,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:50,661 INFO L276 IsEmpty]: Start isEmpty. Operand 133904 states and 222248 transitions. [2024-11-08 16:30:50,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2024-11-08 16:30:50,697 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:30:50,698 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:30:50,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 16:30:50,698 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:30:50,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:30:50,699 INFO L85 PathProgramCache]: Analyzing trace with hash 825945367, now seen corresponding path program 1 times [2024-11-08 16:30:50,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:30:50,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559632799] [2024-11-08 16:30:50,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:30:50,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:30:51,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:30:52,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:30:52,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:30:52,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559632799] [2024-11-08 16:30:52,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559632799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:30:52,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:30:52,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:30:52,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538190097] [2024-11-08 16:30:52,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:30:52,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:30:52,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:30:52,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:30:52,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:30:52,396 INFO L87 Difference]: Start difference. First operand 133904 states and 222248 transitions. Second operand has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:54,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:30:54,339 INFO L93 Difference]: Finished difference Result 263380 states and 437458 transitions. [2024-11-08 16:30:54,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:30:54,340 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 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 373 [2024-11-08 16:30:54,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:30:54,603 INFO L225 Difference]: With dead ends: 263380 [2024-11-08 16:30:54,603 INFO L226 Difference]: Without dead ends: 133890 [2024-11-08 16:30:54,657 INFO L431 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 [2024-11-08 16:30:54,658 INFO L432 NwaCegarLoop]: 8182 mSDtfsCounter, 4634 mSDsluCounter, 4529 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4634 SdHoareTripleChecker+Valid, 12711 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 16:30:54,658 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4634 Valid, 12711 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 16:30:54,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133890 states. [2024-11-08 16:30:56,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133890 to 133888. [2024-11-08 16:30:56,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133888 states, 133887 states have (on average 1.6551868366607663) internal successors, (221608), 133887 states have internal predecessors, (221608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:57,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133888 states to 133888 states and 221608 transitions. [2024-11-08 16:30:57,033 INFO L78 Accepts]: Start accepts. Automaton has 133888 states and 221608 transitions. Word has length 373 [2024-11-08 16:30:57,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:30:57,033 INFO L471 AbstractCegarLoop]: Abstraction has 133888 states and 221608 transitions. [2024-11-08 16:30:57,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:57,034 INFO L276 IsEmpty]: Start isEmpty. Operand 133888 states and 221608 transitions. [2024-11-08 16:30:57,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2024-11-08 16:30:57,066 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:30:57,067 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:30:57,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 16:30:57,067 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:30:57,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:30:57,068 INFO L85 PathProgramCache]: Analyzing trace with hash -2106174797, now seen corresponding path program 1 times [2024-11-08 16:30:57,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:30:57,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613570661] [2024-11-08 16:30:57,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:30:57,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:30:57,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:30:58,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:30:58,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:30:58,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613570661] [2024-11-08 16:30:58,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613570661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:30:58,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:30:58,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:30:58,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418574412] [2024-11-08 16:30:58,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:30:58,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:30:58,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:30:58,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:30:58,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:30:58,473 INFO L87 Difference]: Start difference. First operand 133888 states and 221608 transitions. Second operand has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:59,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:30:59,325 INFO L93 Difference]: Finished difference Result 201526 states and 333900 transitions. [2024-11-08 16:30:59,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:30:59,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 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 373 [2024-11-08 16:30:59,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:30:59,408 INFO L225 Difference]: With dead ends: 201526 [2024-11-08 16:30:59,408 INFO L226 Difference]: Without dead ends: 70700 [2024-11-08 16:30:59,463 INFO L431 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 [2024-11-08 16:30:59,464 INFO L432 NwaCegarLoop]: 6967 mSDtfsCounter, 1471 mSDsluCounter, 5569 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1471 SdHoareTripleChecker+Valid, 12536 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:30:59,464 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1471 Valid, 12536 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:30:59,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70700 states. [2024-11-08 16:31:00,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70700 to 70698. [2024-11-08 16:31:00,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70698 states, 70697 states have (on average 1.6527999773682052) internal successors, (116848), 70697 states have internal predecessors, (116848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:31:00,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70698 states to 70698 states and 116848 transitions. [2024-11-08 16:31:00,800 INFO L78 Accepts]: Start accepts. Automaton has 70698 states and 116848 transitions. Word has length 373 [2024-11-08 16:31:00,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:31:00,801 INFO L471 AbstractCegarLoop]: Abstraction has 70698 states and 116848 transitions. [2024-11-08 16:31:00,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:31:00,802 INFO L276 IsEmpty]: Start isEmpty. Operand 70698 states and 116848 transitions. [2024-11-08 16:31:00,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2024-11-08 16:31:00,820 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:31:00,820 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:31:00,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 16:31:00,820 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:31:00,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:31:00,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1490475655, now seen corresponding path program 1 times [2024-11-08 16:31:00,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:31:00,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757377486] [2024-11-08 16:31:00,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:31:00,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:31:01,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:31:04,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:31:04,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:31:04,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757377486] [2024-11-08 16:31:04,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757377486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:31:04,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:31:04,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 16:31:04,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381781837] [2024-11-08 16:31:04,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:31:04,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 16:31:04,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:31:04,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 16:31:04,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:31:04,497 INFO L87 Difference]: Start difference. First operand 70698 states and 116848 transitions. Second operand has 8 states, 8 states have (on average 46.625) internal successors, (373), 8 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:31:06,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:31:06,664 INFO L93 Difference]: Finished difference Result 288846 states and 475865 transitions. [2024-11-08 16:31:06,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 16:31:06,664 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 46.625) internal successors, (373), 8 states have internal predecessors, (373), 0 states have call successors, (0), 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 373 [2024-11-08 16:31:06,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:31:06,938 INFO L225 Difference]: With dead ends: 288846 [2024-11-08 16:31:06,938 INFO L226 Difference]: Without dead ends: 244130 [2024-11-08 16:31:06,985 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2024-11-08 16:31:06,986 INFO L432 NwaCegarLoop]: 8345 mSDtfsCounter, 16902 mSDsluCounter, 20726 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16902 SdHoareTripleChecker+Valid, 29071 SdHoareTripleChecker+Invalid, 727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 16:31:06,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16902 Valid, 29071 Invalid, 727 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [161 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 16:31:07,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244130 states. [2024-11-08 16:31:09,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244130 to 185252. [2024-11-08 16:31:09,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185252 states, 185251 states have (on average 1.6505929792551728) internal successors, (305774), 185251 states have internal predecessors, (305774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:31:10,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185252 states to 185252 states and 305774 transitions. [2024-11-08 16:31:10,581 INFO L78 Accepts]: Start accepts. Automaton has 185252 states and 305774 transitions. Word has length 373 [2024-11-08 16:31:10,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:31:10,589 INFO L471 AbstractCegarLoop]: Abstraction has 185252 states and 305774 transitions. [2024-11-08 16:31:10,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 46.625) internal successors, (373), 8 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:31:10,590 INFO L276 IsEmpty]: Start isEmpty. Operand 185252 states and 305774 transitions. [2024-11-08 16:31:10,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2024-11-08 16:31:10,667 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:31:10,668 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:31:10,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 16:31:10,672 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:31:10,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:31:10,673 INFO L85 PathProgramCache]: Analyzing trace with hash -95741352, now seen corresponding path program 1 times [2024-11-08 16:31:10,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:31:10,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668153115] [2024-11-08 16:31:10,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:31:10,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:31:11,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:31:11,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:31:11,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:31:11,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668153115] [2024-11-08 16:31:11,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668153115] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:31:11,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:31:11,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:31:11,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133769702] [2024-11-08 16:31:11,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:31:11,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:31:11,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:31:11,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:31:11,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:31:11,973 INFO L87 Difference]: Start difference. First operand 185252 states and 305774 transitions. Second operand has 7 states, 7 states have (on average 53.285714285714285) internal successors, (373), 7 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:31:14,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:31:14,155 INFO L93 Difference]: Finished difference Result 404848 states and 669424 transitions. [2024-11-08 16:31:14,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 16:31:14,156 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 53.285714285714285) internal successors, (373), 7 states have internal predecessors, (373), 0 states have call successors, (0), 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 373 [2024-11-08 16:31:14,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:31:14,591 INFO L225 Difference]: With dead ends: 404848 [2024-11-08 16:31:14,591 INFO L226 Difference]: Without dead ends: 352806 [2024-11-08 16:31:14,659 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-08 16:31:14,660 INFO L432 NwaCegarLoop]: 6573 mSDtfsCounter, 15528 mSDsluCounter, 14634 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15528 SdHoareTripleChecker+Valid, 21207 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 16:31:14,661 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15528 Valid, 21207 Invalid, 353 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 16:31:14,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352806 states. [2024-11-08 16:31:18,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352806 to 229956. [2024-11-08 16:31:18,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229956 states, 229955 states have (on average 1.6507838490139375) internal successors, (379606), 229955 states have internal predecessors, (379606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)