./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.ufo.UNBOUNDED.pals.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_dab3e0cb-66b2-4f94-b281-fd7dda1d607d/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dab3e0cb-66b2-4f94-b281-fd7dda1d607d/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_dab3e0cb-66b2-4f94-b281-fd7dda1d607d/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dab3e0cb-66b2-4f94-b281-fd7dda1d607d/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.ufo.UNBOUNDED.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dab3e0cb-66b2-4f94-b281-fd7dda1d607d/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_dab3e0cb-66b2-4f94-b281-fd7dda1d607d/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 558f970b63375a18824a4471ce91e71e4e14632a20bfa5002df552fa8b202ea3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:03:07,160 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:03:07,299 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dab3e0cb-66b2-4f94-b281-fd7dda1d607d/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 19:03:07,308 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:03:07,309 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 19:03:07,364 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:03:07,365 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 19:03:07,366 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 19:03:07,367 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 19:03:07,370 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 19:03:07,371 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:03:07,371 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 19:03:07,372 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:03:07,372 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:03:07,373 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 19:03:07,377 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:03:07,377 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:03:07,381 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 19:03:07,382 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 19:03:07,382 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 19:03:07,382 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:03:07,385 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:03:07,386 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:03:07,386 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:03:07,387 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:03:07,387 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 19:03:07,389 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:03:07,389 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:03:07,390 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:03:07,391 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 19:03:07,392 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 19:03:07,393 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 19:03:07,393 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:03:07,394 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:03:07,395 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:03:07,396 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:03:07,396 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 19:03:07,396 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 19:03:07,397 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 19:03:07,397 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 19:03:07,397 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 19:03:07,398 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 19:03:07,398 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_dab3e0cb-66b2-4f94-b281-fd7dda1d607d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dab3e0cb-66b2-4f94-b281-fd7dda1d607d/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 558f970b63375a18824a4471ce91e71e4e14632a20bfa5002df552fa8b202ea3 [2024-11-08 19:03:07,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:03:07,802 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:03:07,806 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:03:07,808 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:03:07,809 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:03:07,810 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dab3e0cb-66b2-4f94-b281-fd7dda1d607d/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.ufo.UNBOUNDED.pals.c Unable to find full path for "g++" [2024-11-08 19:03:10,337 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:03:10,655 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:03:10,655 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dab3e0cb-66b2-4f94-b281-fd7dda1d607d/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.ufo.UNBOUNDED.pals.c [2024-11-08 19:03:10,681 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dab3e0cb-66b2-4f94-b281-fd7dda1d607d/bin/uautomizer-verify-jihMAELWvX/data/016a6e189/91bd339a110443c081bdb6cec4bb3065/FLAGe49a1dfb6 [2024-11-08 19:03:10,705 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dab3e0cb-66b2-4f94-b281-fd7dda1d607d/bin/uautomizer-verify-jihMAELWvX/data/016a6e189/91bd339a110443c081bdb6cec4bb3065 [2024-11-08 19:03:10,709 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:03:10,712 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:03:10,715 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:03:10,717 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:03:10,724 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:03:10,725 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:03:10" (1/1) ... [2024-11-08 19:03:10,726 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@330412cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:03:10, skipping insertion in model container [2024-11-08 19:03:10,726 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:03:10" (1/1) ... [2024-11-08 19:03:10,791 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:03:11,190 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_dab3e0cb-66b2-4f94-b281-fd7dda1d607d/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.ufo.UNBOUNDED.pals.c[14509,14522] [2024-11-08 19:03:11,199 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:03:11,215 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:03:11,306 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_dab3e0cb-66b2-4f94-b281-fd7dda1d607d/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.ufo.UNBOUNDED.pals.c[14509,14522] [2024-11-08 19:03:11,307 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:03:11,332 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:03:11,333 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:03:11 WrapperNode [2024-11-08 19:03:11,333 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:03:11,334 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:03:11,335 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:03:11,335 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:03:11,345 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:03:11" (1/1) ... [2024-11-08 19:03:11,359 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:03:11" (1/1) ... [2024-11-08 19:03:11,425 INFO L138 Inliner]: procedures = 23, calls = 14, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 495 [2024-11-08 19:03:11,426 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:03:11,426 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:03:11,427 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:03:11,427 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:03:11,443 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:03:11" (1/1) ... [2024-11-08 19:03:11,444 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:03:11" (1/1) ... [2024-11-08 19:03:11,449 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:03:11" (1/1) ... [2024-11-08 19:03:11,471 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 19:03:11,471 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:03:11" (1/1) ... [2024-11-08 19:03:11,472 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:03:11" (1/1) ... [2024-11-08 19:03:11,485 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:03:11" (1/1) ... [2024-11-08 19:03:11,493 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:03:11" (1/1) ... [2024-11-08 19:03:11,497 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:03:11" (1/1) ... [2024-11-08 19:03:11,500 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:03:11" (1/1) ... [2024-11-08 19:03:11,506 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:03:11,507 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:03:11,508 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:03:11,508 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:03:11,509 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:03:11" (1/1) ... [2024-11-08 19:03:11,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:03:11,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dab3e0cb-66b2-4f94-b281-fd7dda1d607d/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:03:11,566 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dab3e0cb-66b2-4f94-b281-fd7dda1d607d/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 19:03:11,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dab3e0cb-66b2-4f94-b281-fd7dda1d607d/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 19:03:11,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:03:11,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 19:03:11,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:03:11,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:03:11,823 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:03:11,826 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:03:12,974 INFO L? ?]: Removed 48 outVars from TransFormulas that were not future-live. [2024-11-08 19:03:12,975 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:03:12,994 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:03:12,995 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 19:03:12,995 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:03:12 BoogieIcfgContainer [2024-11-08 19:03:12,996 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:03:12,999 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 19:03:13,000 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 19:03:13,004 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 19:03:13,005 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 07:03:10" (1/3) ... [2024-11-08 19:03:13,006 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e6fc9cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:03:13, skipping insertion in model container [2024-11-08 19:03:13,006 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:03:11" (2/3) ... [2024-11-08 19:03:13,007 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e6fc9cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:03:13, skipping insertion in model container [2024-11-08 19:03:13,007 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:03:12" (3/3) ... [2024-11-08 19:03:13,009 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.ufo.UNBOUNDED.pals.c [2024-11-08 19:03:13,032 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 19:03:13,032 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 19:03:13,134 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 19:03:13,144 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;@3fbc47d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 19:03:13,144 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 19:03:13,151 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 135 states have (on average 1.7703703703703704) internal successors, (239), 136 states have internal predecessors, (239), 0 states have call successors, (0), 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 19:03:13,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-08 19:03:13,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:03:13,165 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] [2024-11-08 19:03:13,165 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:03:13,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:03:13,174 INFO L85 PathProgramCache]: Analyzing trace with hash 852781424, now seen corresponding path program 1 times [2024-11-08 19:03:13,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:03:13,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492307023] [2024-11-08 19:03:13,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:03:13,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:03:13,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:13,789 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 19:03:13,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:03:13,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492307023] [2024-11-08 19:03:13,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492307023] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:03:13,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:03:13,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 19:03:13,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702306026] [2024-11-08 19:03:13,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:03:13,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 19:03:13,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:03:13,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 19:03:13,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 19:03:13,852 INFO L87 Difference]: Start difference. First operand has 137 states, 135 states have (on average 1.7703703703703704) internal successors, (239), 136 states have internal predecessors, (239), 0 states have call successors, (0), 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 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 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 19:03:13,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:03:13,910 INFO L93 Difference]: Finished difference Result 211 states and 367 transitions. [2024-11-08 19:03:13,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 19:03:13,913 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2024-11-08 19:03:13,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:03:13,935 INFO L225 Difference]: With dead ends: 211 [2024-11-08 19:03:13,935 INFO L226 Difference]: Without dead ends: 133 [2024-11-08 19:03:13,940 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 19:03:13,948 INFO L432 NwaCegarLoop]: 232 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:03:13,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:03:13,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-11-08 19:03:13,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2024-11-08 19:03:14,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 132 states have (on average 1.7575757575757576) internal successors, (232), 132 states have internal predecessors, (232), 0 states have call successors, (0), 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 19:03:14,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 232 transitions. [2024-11-08 19:03:14,006 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 232 transitions. Word has length 37 [2024-11-08 19:03:14,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:03:14,007 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 232 transitions. [2024-11-08 19:03:14,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 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 19:03:14,008 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 232 transitions. [2024-11-08 19:03:14,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-08 19:03:14,010 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:03:14,010 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] [2024-11-08 19:03:14,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 19:03:14,011 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:03:14,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:03:14,012 INFO L85 PathProgramCache]: Analyzing trace with hash 35132974, now seen corresponding path program 1 times [2024-11-08 19:03:14,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:03:14,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469191715] [2024-11-08 19:03:14,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:03:14,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:03:14,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:14,526 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 19:03:14,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:03:14,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469191715] [2024-11-08 19:03:14,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469191715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:03:14,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:03:14,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:03:14,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43066970] [2024-11-08 19:03:14,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:03:14,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:03:14,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:03:14,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:03:14,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:03:14,539 INFO L87 Difference]: Start difference. First operand 133 states and 232 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 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 19:03:14,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:03:14,738 INFO L93 Difference]: Finished difference Result 210 states and 360 transitions. [2024-11-08 19:03:14,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:03:14,746 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2024-11-08 19:03:14,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:03:14,747 INFO L225 Difference]: With dead ends: 210 [2024-11-08 19:03:14,747 INFO L226 Difference]: Without dead ends: 133 [2024-11-08 19:03:14,748 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:03:14,750 INFO L432 NwaCegarLoop]: 230 mSDtfsCounter, 0 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 885 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:03:14,754 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 885 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:03:14,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-11-08 19:03:14,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2024-11-08 19:03:14,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 132 states have (on average 1.5303030303030303) internal successors, (202), 132 states have internal predecessors, (202), 0 states have call successors, (0), 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 19:03:14,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 202 transitions. [2024-11-08 19:03:14,775 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 202 transitions. Word has length 37 [2024-11-08 19:03:14,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:03:14,776 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 202 transitions. [2024-11-08 19:03:14,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 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 19:03:14,776 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 202 transitions. [2024-11-08 19:03:14,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-08 19:03:14,781 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:03:14,781 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] [2024-11-08 19:03:14,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 19:03:14,782 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:03:14,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:03:14,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1856068084, now seen corresponding path program 1 times [2024-11-08 19:03:14,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:03:14,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979818040] [2024-11-08 19:03:14,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:03:14,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:03:14,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:15,074 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 19:03:15,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:03:15,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979818040] [2024-11-08 19:03:15,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979818040] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:03:15,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:03:15,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:03:15,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648046016] [2024-11-08 19:03:15,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:03:15,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:03:15,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:03:15,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:03:15,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:03:15,082 INFO L87 Difference]: Start difference. First operand 133 states and 202 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:03:15,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:03:15,215 INFO L93 Difference]: Finished difference Result 269 states and 432 transitions. [2024-11-08 19:03:15,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:03:15,216 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-08 19:03:15,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:03:15,218 INFO L225 Difference]: With dead ends: 269 [2024-11-08 19:03:15,218 INFO L226 Difference]: Without dead ends: 196 [2024-11-08 19:03:15,219 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 19:03:15,221 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 97 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:03:15,221 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 352 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:03:15,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2024-11-08 19:03:15,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 193. [2024-11-08 19:03:15,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 192 states have (on average 1.5625) internal successors, (300), 192 states have internal predecessors, (300), 0 states have call successors, (0), 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 19:03:15,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 300 transitions. [2024-11-08 19:03:15,236 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 300 transitions. Word has length 66 [2024-11-08 19:03:15,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:03:15,238 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 300 transitions. [2024-11-08 19:03:15,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:03:15,238 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 300 transitions. [2024-11-08 19:03:15,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-08 19:03:15,240 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:03:15,241 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] [2024-11-08 19:03:15,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 19:03:15,245 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:03:15,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:03:15,245 INFO L85 PathProgramCache]: Analyzing trace with hash -731490430, now seen corresponding path program 1 times [2024-11-08 19:03:15,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:03:15,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655008846] [2024-11-08 19:03:15,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:03:15,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:03:15,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:15,460 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 19:03:15,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:03:15,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655008846] [2024-11-08 19:03:15,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655008846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:03:15,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:03:15,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:03:15,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812758399] [2024-11-08 19:03:15,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:03:15,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:03:15,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:03:15,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:03:15,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:03:15,468 INFO L87 Difference]: Start difference. First operand 193 states and 300 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:03:15,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:03:15,537 INFO L93 Difference]: Finished difference Result 443 states and 716 transitions. [2024-11-08 19:03:15,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:03:15,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-08 19:03:15,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:03:15,543 INFO L225 Difference]: With dead ends: 443 [2024-11-08 19:03:15,544 INFO L226 Difference]: Without dead ends: 310 [2024-11-08 19:03:15,545 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 19:03:15,549 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 99 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:03:15,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 365 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:03:15,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2024-11-08 19:03:15,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 306. [2024-11-08 19:03:15,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 305 states have (on average 1.5967213114754097) internal successors, (487), 305 states have internal predecessors, (487), 0 states have call successors, (0), 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 19:03:15,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 487 transitions. [2024-11-08 19:03:15,577 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 487 transitions. Word has length 68 [2024-11-08 19:03:15,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:03:15,577 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 487 transitions. [2024-11-08 19:03:15,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:03:15,578 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 487 transitions. [2024-11-08 19:03:15,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-08 19:03:15,580 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:03:15,581 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] [2024-11-08 19:03:15,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 19:03:15,582 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:03:15,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:03:15,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1929972208, now seen corresponding path program 1 times [2024-11-08 19:03:15,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:03:15,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261022185] [2024-11-08 19:03:15,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:03:15,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:03:15,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:15,830 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 19:03:15,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:03:15,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261022185] [2024-11-08 19:03:15,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261022185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:03:15,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:03:15,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:03:15,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619347382] [2024-11-08 19:03:15,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:03:15,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:03:15,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:03:15,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:03:15,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:03:15,837 INFO L87 Difference]: Start difference. First operand 306 states and 487 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:03:15,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:03:15,897 INFO L93 Difference]: Finished difference Result 766 states and 1249 transitions. [2024-11-08 19:03:15,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:03:15,898 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-08 19:03:15,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:03:15,901 INFO L225 Difference]: With dead ends: 766 [2024-11-08 19:03:15,901 INFO L226 Difference]: Without dead ends: 520 [2024-11-08 19:03:15,903 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 19:03:15,907 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 93 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:03:15,908 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 366 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:03:15,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-11-08 19:03:15,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 514. [2024-11-08 19:03:15,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 513 states have (on average 1.612085769980507) internal successors, (827), 513 states have internal predecessors, (827), 0 states have call successors, (0), 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 19:03:15,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 827 transitions. [2024-11-08 19:03:15,959 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 827 transitions. Word has length 70 [2024-11-08 19:03:15,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:03:15,960 INFO L471 AbstractCegarLoop]: Abstraction has 514 states and 827 transitions. [2024-11-08 19:03:15,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:03:15,961 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 827 transitions. [2024-11-08 19:03:15,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-08 19:03:15,966 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:03:15,966 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] [2024-11-08 19:03:15,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 19:03:15,967 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:03:15,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:03:15,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1287047778, now seen corresponding path program 1 times [2024-11-08 19:03:15,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:03:15,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295315948] [2024-11-08 19:03:15,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:03:15,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:03:16,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:16,245 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 19:03:16,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:03:16,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295315948] [2024-11-08 19:03:16,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295315948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:03:16,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:03:16,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:03:16,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526044302] [2024-11-08 19:03:16,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:03:16,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:03:16,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:03:16,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:03:16,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:03:16,249 INFO L87 Difference]: Start difference. First operand 514 states and 827 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:03:16,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:03:16,511 INFO L93 Difference]: Finished difference Result 2190 states and 3633 transitions. [2024-11-08 19:03:16,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:03:16,512 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-11-08 19:03:16,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:03:16,521 INFO L225 Difference]: With dead ends: 2190 [2024-11-08 19:03:16,521 INFO L226 Difference]: Without dead ends: 1736 [2024-11-08 19:03:16,523 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:03:16,524 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 812 mSDsluCounter, 951 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 1144 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:03:16,525 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [812 Valid, 1144 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:03:16,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1736 states. [2024-11-08 19:03:16,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1736 to 912. [2024-11-08 19:03:16,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 912 states, 911 states have (on average 1.628979143798024) internal successors, (1484), 911 states have internal predecessors, (1484), 0 states have call successors, (0), 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 19:03:16,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1484 transitions. [2024-11-08 19:03:16,573 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1484 transitions. Word has length 72 [2024-11-08 19:03:16,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:03:16,574 INFO L471 AbstractCegarLoop]: Abstraction has 912 states and 1484 transitions. [2024-11-08 19:03:16,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:03:16,575 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1484 transitions. [2024-11-08 19:03:16,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-08 19:03:16,577 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:03:16,577 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] [2024-11-08 19:03:16,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 19:03:16,578 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:03:16,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:03:16,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1128359232, now seen corresponding path program 1 times [2024-11-08 19:03:16,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:03:16,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888857711] [2024-11-08 19:03:16,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:03:16,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:03:16,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:16,740 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 19:03:16,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:03:16,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888857711] [2024-11-08 19:03:16,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888857711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:03:16,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:03:16,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 19:03:16,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570438794] [2024-11-08 19:03:16,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:03:16,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:03:16,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:03:16,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:03:16,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:03:16,744 INFO L87 Difference]: Start difference. First operand 912 states and 1484 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:03:16,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:03:16,937 INFO L93 Difference]: Finished difference Result 2654 states and 4394 transitions. [2024-11-08 19:03:16,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:03:16,938 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-11-08 19:03:16,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:03:16,947 INFO L225 Difference]: With dead ends: 2654 [2024-11-08 19:03:16,947 INFO L226 Difference]: Without dead ends: 1802 [2024-11-08 19:03:16,949 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 19:03:16,952 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 359 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:03:16,952 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 651 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:03:16,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1802 states. [2024-11-08 19:03:17,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1802 to 1348. [2024-11-08 19:03:17,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1348 states, 1347 states have (on average 1.6384558277654047) internal successors, (2207), 1347 states have internal predecessors, (2207), 0 states have call successors, (0), 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 19:03:17,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1348 states to 1348 states and 2207 transitions. [2024-11-08 19:03:17,026 INFO L78 Accepts]: Start accepts. Automaton has 1348 states and 2207 transitions. Word has length 73 [2024-11-08 19:03:17,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:03:17,028 INFO L471 AbstractCegarLoop]: Abstraction has 1348 states and 2207 transitions. [2024-11-08 19:03:17,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:03:17,028 INFO L276 IsEmpty]: Start isEmpty. Operand 1348 states and 2207 transitions. [2024-11-08 19:03:17,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-08 19:03:17,032 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:03:17,032 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] [2024-11-08 19:03:17,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 19:03:17,034 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:03:17,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:03:17,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1134430443, now seen corresponding path program 1 times [2024-11-08 19:03:17,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:03:17,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90922453] [2024-11-08 19:03:17,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:03:17,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:03:17,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:17,260 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 19:03:17,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:03:17,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90922453] [2024-11-08 19:03:17,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90922453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:03:17,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:03:17,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 19:03:17,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928429200] [2024-11-08 19:03:17,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:03:17,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:03:17,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:03:17,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:03:17,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:03:17,266 INFO L87 Difference]: Start difference. First operand 1348 states and 2207 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:03:17,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:03:17,453 INFO L93 Difference]: Finished difference Result 3908 states and 6458 transitions. [2024-11-08 19:03:17,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:03:17,454 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-11-08 19:03:17,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:03:17,467 INFO L225 Difference]: With dead ends: 3908 [2024-11-08 19:03:17,467 INFO L226 Difference]: Without dead ends: 2620 [2024-11-08 19:03:17,469 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 19:03:17,473 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 357 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:03:17,474 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 652 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:03:17,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2620 states. [2024-11-08 19:03:17,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2620 to 1972. [2024-11-08 19:03:17,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1972 states, 1971 states have (on average 1.637239979705733) internal successors, (3227), 1971 states have internal predecessors, (3227), 0 states have call successors, (0), 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 19:03:17,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1972 states to 1972 states and 3227 transitions. [2024-11-08 19:03:17,570 INFO L78 Accepts]: Start accepts. Automaton has 1972 states and 3227 transitions. Word has length 74 [2024-11-08 19:03:17,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:03:17,571 INFO L471 AbstractCegarLoop]: Abstraction has 1972 states and 3227 transitions. [2024-11-08 19:03:17,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:03:17,572 INFO L276 IsEmpty]: Start isEmpty. Operand 1972 states and 3227 transitions. [2024-11-08 19:03:17,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-08 19:03:17,576 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:03:17,576 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] [2024-11-08 19:03:17,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 19:03:17,577 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:03:17,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:03:17,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1902538007, now seen corresponding path program 1 times [2024-11-08 19:03:17,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:03:17,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843293503] [2024-11-08 19:03:17,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:03:17,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:03:17,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:17,747 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 19:03:17,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:03:17,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843293503] [2024-11-08 19:03:17,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843293503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:03:17,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:03:17,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 19:03:17,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034667951] [2024-11-08 19:03:17,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:03:17,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:03:17,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:03:17,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:03:17,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:03:17,750 INFO L87 Difference]: Start difference. First operand 1972 states and 3227 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 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 19:03:17,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:03:17,967 INFO L93 Difference]: Finished difference Result 5692 states and 9382 transitions. [2024-11-08 19:03:17,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:03:17,968 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2024-11-08 19:03:17,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:03:17,984 INFO L225 Difference]: With dead ends: 5692 [2024-11-08 19:03:17,986 INFO L226 Difference]: Without dead ends: 3780 [2024-11-08 19:03:17,988 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 19:03:17,991 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 355 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:03:17,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 661 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:03:17,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3780 states. [2024-11-08 19:03:18,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3780 to 2860. [2024-11-08 19:03:18,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2860 states, 2859 states have (on average 1.634487583071004) internal successors, (4673), 2859 states have internal predecessors, (4673), 0 states have call successors, (0), 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 19:03:18,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2860 states to 2860 states and 4673 transitions. [2024-11-08 19:03:18,119 INFO L78 Accepts]: Start accepts. Automaton has 2860 states and 4673 transitions. Word has length 75 [2024-11-08 19:03:18,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:03:18,120 INFO L471 AbstractCegarLoop]: Abstraction has 2860 states and 4673 transitions. [2024-11-08 19:03:18,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 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 19:03:18,121 INFO L276 IsEmpty]: Start isEmpty. Operand 2860 states and 4673 transitions. [2024-11-08 19:03:18,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-08 19:03:18,122 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:03:18,123 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] [2024-11-08 19:03:18,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 19:03:18,123 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:03:18,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:03:18,124 INFO L85 PathProgramCache]: Analyzing trace with hash -326880713, now seen corresponding path program 1 times [2024-11-08 19:03:18,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:03:18,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367710048] [2024-11-08 19:03:18,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:03:18,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:03:18,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:18,257 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 19:03:18,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:03:18,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367710048] [2024-11-08 19:03:18,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367710048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:03:18,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:03:18,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:03:18,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753651381] [2024-11-08 19:03:18,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:03:18,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:03:18,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:03:18,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:03:18,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:03:18,260 INFO L87 Difference]: Start difference. First operand 2860 states and 4673 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 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 19:03:18,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:03:18,366 INFO L93 Difference]: Finished difference Result 6550 states and 10704 transitions. [2024-11-08 19:03:18,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:03:18,367 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-11-08 19:03:18,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:03:18,384 INFO L225 Difference]: With dead ends: 6550 [2024-11-08 19:03:18,384 INFO L226 Difference]: Without dead ends: 4512 [2024-11-08 19:03:18,388 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 19:03:18,389 INFO L432 NwaCegarLoop]: 235 mSDtfsCounter, 92 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:03:18,389 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 413 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:03:18,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4512 states. [2024-11-08 19:03:18,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4512 to 4510. [2024-11-08 19:03:18,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4510 states, 4509 states have (on average 1.6185406963850077) internal successors, (7298), 4509 states have internal predecessors, (7298), 0 states have call successors, (0), 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 19:03:18,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4510 states to 4510 states and 7298 transitions. [2024-11-08 19:03:18,550 INFO L78 Accepts]: Start accepts. Automaton has 4510 states and 7298 transitions. Word has length 76 [2024-11-08 19:03:18,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:03:18,550 INFO L471 AbstractCegarLoop]: Abstraction has 4510 states and 7298 transitions. [2024-11-08 19:03:18,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 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 19:03:18,551 INFO L276 IsEmpty]: Start isEmpty. Operand 4510 states and 7298 transitions. [2024-11-08 19:03:18,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-08 19:03:18,552 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:03:18,553 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] [2024-11-08 19:03:18,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 19:03:18,553 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:03:18,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:03:18,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1885783927, now seen corresponding path program 1 times [2024-11-08 19:03:18,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:03:18,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717374795] [2024-11-08 19:03:18,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:03:18,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:03:18,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:18,705 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 19:03:18,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:03:18,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717374795] [2024-11-08 19:03:18,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717374795] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:03:18,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:03:18,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:03:18,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002012971] [2024-11-08 19:03:18,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:03:18,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:03:18,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:03:18,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:03:18,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:03:18,709 INFO L87 Difference]: Start difference. First operand 4510 states and 7298 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 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 19:03:18,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:03:18,863 INFO L93 Difference]: Finished difference Result 9926 states and 16104 transitions. [2024-11-08 19:03:18,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:03:18,864 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-11-08 19:03:18,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:03:18,890 INFO L225 Difference]: With dead ends: 9926 [2024-11-08 19:03:18,891 INFO L226 Difference]: Without dead ends: 6732 [2024-11-08 19:03:18,896 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 19:03:18,897 INFO L432 NwaCegarLoop]: 264 mSDtfsCounter, 98 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:03:18,897 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 441 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:03:18,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6732 states. [2024-11-08 19:03:19,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6732 to 6730. [2024-11-08 19:03:19,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6730 states, 6729 states have (on average 1.607965522365879) internal successors, (10820), 6729 states have internal predecessors, (10820), 0 states have call successors, (0), 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 19:03:19,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6730 states to 6730 states and 10820 transitions. [2024-11-08 19:03:19,149 INFO L78 Accepts]: Start accepts. Automaton has 6730 states and 10820 transitions. Word has length 76 [2024-11-08 19:03:19,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:03:19,150 INFO L471 AbstractCegarLoop]: Abstraction has 6730 states and 10820 transitions. [2024-11-08 19:03:19,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 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 19:03:19,150 INFO L276 IsEmpty]: Start isEmpty. Operand 6730 states and 10820 transitions. [2024-11-08 19:03:19,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-08 19:03:19,151 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:03:19,151 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] [2024-11-08 19:03:19,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 19:03:19,152 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:03:19,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:03:19,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1020554423, now seen corresponding path program 1 times [2024-11-08 19:03:19,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:03:19,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326168039] [2024-11-08 19:03:19,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:03:19,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:03:19,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:19,286 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 19:03:19,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:03:19,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326168039] [2024-11-08 19:03:19,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326168039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:03:19,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:03:19,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:03:19,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044949843] [2024-11-08 19:03:19,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:03:19,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:03:19,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:03:19,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:03:19,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:03:19,290 INFO L87 Difference]: Start difference. First operand 6730 states and 10820 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 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 19:03:19,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:03:19,523 INFO L93 Difference]: Finished difference Result 15111 states and 24508 transitions. [2024-11-08 19:03:19,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:03:19,524 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-11-08 19:03:19,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:03:19,560 INFO L225 Difference]: With dead ends: 15111 [2024-11-08 19:03:19,560 INFO L226 Difference]: Without dead ends: 10171 [2024-11-08 19:03:19,568 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 19:03:19,569 INFO L432 NwaCegarLoop]: 285 mSDtfsCounter, 104 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:03:19,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 461 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:03:19,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10171 states. [2024-11-08 19:03:19,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10171 to 10169. [2024-11-08 19:03:20,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10169 states, 10168 states have (on average 1.6009047993705743) internal successors, (16278), 10168 states have internal predecessors, (16278), 0 states have call successors, (0), 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 19:03:20,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10169 states to 10169 states and 16278 transitions. [2024-11-08 19:03:20,043 INFO L78 Accepts]: Start accepts. Automaton has 10169 states and 16278 transitions. Word has length 76 [2024-11-08 19:03:20,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:03:20,044 INFO L471 AbstractCegarLoop]: Abstraction has 10169 states and 16278 transitions. [2024-11-08 19:03:20,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 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 19:03:20,049 INFO L276 IsEmpty]: Start isEmpty. Operand 10169 states and 16278 transitions. [2024-11-08 19:03:20,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-08 19:03:20,050 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:03:20,050 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] [2024-11-08 19:03:20,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 19:03:20,051 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:03:20,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:03:20,052 INFO L85 PathProgramCache]: Analyzing trace with hash 850403503, now seen corresponding path program 1 times [2024-11-08 19:03:20,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:03:20,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250693605] [2024-11-08 19:03:20,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:03:20,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:03:20,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:20,395 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 19:03:20,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:03:20,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250693605] [2024-11-08 19:03:20,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250693605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:03:20,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:03:20,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:03:20,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26625515] [2024-11-08 19:03:20,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:03:20,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:03:20,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:03:20,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:03:20,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:03:20,399 INFO L87 Difference]: Start difference. First operand 10169 states and 16278 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:03:20,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:03:20,851 INFO L93 Difference]: Finished difference Result 20262 states and 32453 transitions. [2024-11-08 19:03:20,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:03:20,852 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-08 19:03:20,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:03:20,877 INFO L225 Difference]: With dead ends: 20262 [2024-11-08 19:03:20,877 INFO L226 Difference]: Without dead ends: 10171 [2024-11-08 19:03:20,887 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:03:20,888 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 283 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:03:20,889 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 538 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:03:20,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10171 states. [2024-11-08 19:03:21,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10171 to 10169. [2024-11-08 19:03:21,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10169 states, 10168 states have (on average 1.5886113296616837) internal successors, (16153), 10168 states have internal predecessors, (16153), 0 states have call successors, (0), 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 19:03:21,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10169 states to 10169 states and 16153 transitions. [2024-11-08 19:03:21,250 INFO L78 Accepts]: Start accepts. Automaton has 10169 states and 16153 transitions. Word has length 77 [2024-11-08 19:03:21,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:03:21,251 INFO L471 AbstractCegarLoop]: Abstraction has 10169 states and 16153 transitions. [2024-11-08 19:03:21,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:03:21,252 INFO L276 IsEmpty]: Start isEmpty. Operand 10169 states and 16153 transitions. [2024-11-08 19:03:21,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-08 19:03:21,254 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:03:21,254 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] [2024-11-08 19:03:21,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 19:03:21,255 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:03:21,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:03:21,255 INFO L85 PathProgramCache]: Analyzing trace with hash 61655256, now seen corresponding path program 1 times [2024-11-08 19:03:21,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:03:21,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006094459] [2024-11-08 19:03:21,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:03:21,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:03:21,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:21,698 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 19:03:21,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:03:21,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006094459] [2024-11-08 19:03:21,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006094459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:03:21,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:03:21,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:03:21,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496030879] [2024-11-08 19:03:21,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:03:21,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:03:21,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:03:21,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:03:21,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:03:21,701 INFO L87 Difference]: Start difference. First operand 10169 states and 16153 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 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 19:03:22,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:03:22,161 INFO L93 Difference]: Finished difference Result 29138 states and 46435 transitions. [2024-11-08 19:03:22,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:03:22,162 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2024-11-08 19:03:22,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:03:22,212 INFO L225 Difference]: With dead ends: 29138 [2024-11-08 19:03:22,212 INFO L226 Difference]: Without dead ends: 19047 [2024-11-08 19:03:22,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:03:22,230 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 185 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:03:22,231 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 540 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:03:22,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19047 states. [2024-11-08 19:03:22,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19047 to 19045. [2024-11-08 19:03:23,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19045 states, 19044 states have (on average 1.5750892669607226) internal successors, (29996), 19044 states have internal predecessors, (29996), 0 states have call successors, (0), 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 19:03:23,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19045 states to 19045 states and 29996 transitions. [2024-11-08 19:03:23,094 INFO L78 Accepts]: Start accepts. Automaton has 19045 states and 29996 transitions. Word has length 80 [2024-11-08 19:03:23,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:03:23,095 INFO L471 AbstractCegarLoop]: Abstraction has 19045 states and 29996 transitions. [2024-11-08 19:03:23,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 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 19:03:23,096 INFO L276 IsEmpty]: Start isEmpty. Operand 19045 states and 29996 transitions. [2024-11-08 19:03:23,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-08 19:03:23,097 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:03:23,097 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] [2024-11-08 19:03:23,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 19:03:23,098 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:03:23,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:03:23,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1482737304, now seen corresponding path program 1 times [2024-11-08 19:03:23,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:03:23,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686785668] [2024-11-08 19:03:23,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:03:23,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:03:23,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:23,840 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 19:03:23,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:03:23,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686785668] [2024-11-08 19:03:23,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686785668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:03:23,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:03:23,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 19:03:23,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898008946] [2024-11-08 19:03:23,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:03:23,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 19:03:23,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:03:23,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 19:03:23,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:03:23,845 INFO L87 Difference]: Start difference. First operand 19045 states and 29996 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 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 19:03:24,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:03:24,355 INFO L93 Difference]: Finished difference Result 20133 states and 31445 transitions. [2024-11-08 19:03:24,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 19:03:24,356 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-11-08 19:03:24,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:03:24,411 INFO L225 Difference]: With dead ends: 20133 [2024-11-08 19:03:24,411 INFO L226 Difference]: Without dead ends: 20131 [2024-11-08 19:03:24,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:03:24,421 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 0 mSDsluCounter, 1158 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1354 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:03:24,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1354 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:03:24,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20131 states. [2024-11-08 19:03:25,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20131 to 20131. [2024-11-08 19:03:25,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20131 states, 20130 states have (on average 1.5436164927968206) internal successors, (31073), 20130 states have internal predecessors, (31073), 0 states have call successors, (0), 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 19:03:25,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20131 states to 20131 states and 31073 transitions. [2024-11-08 19:03:25,237 INFO L78 Accepts]: Start accepts. Automaton has 20131 states and 31073 transitions. Word has length 81 [2024-11-08 19:03:25,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:03:25,237 INFO L471 AbstractCegarLoop]: Abstraction has 20131 states and 31073 transitions. [2024-11-08 19:03:25,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 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 19:03:25,238 INFO L276 IsEmpty]: Start isEmpty. Operand 20131 states and 31073 transitions. [2024-11-08 19:03:25,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 19:03:25,240 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:03:25,241 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:03:25,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 19:03:25,241 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:03:25,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:03:25,242 INFO L85 PathProgramCache]: Analyzing trace with hash 969366049, now seen corresponding path program 1 times [2024-11-08 19:03:25,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:03:25,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324627987] [2024-11-08 19:03:25,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:03:25,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:03:25,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:25,506 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-08 19:03:25,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:03:25,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324627987] [2024-11-08 19:03:25,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324627987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:03:25,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:03:25,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:03:25,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31684579] [2024-11-08 19:03:25,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:03:25,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:03:25,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:03:25,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:03:25,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:03:25,512 INFO L87 Difference]: Start difference. First operand 20131 states and 31073 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:03:26,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:03:26,279 INFO L93 Difference]: Finished difference Result 49399 states and 76493 transitions. [2024-11-08 19:03:26,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:03:26,280 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2024-11-08 19:03:26,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:03:26,374 INFO L225 Difference]: With dead ends: 49399 [2024-11-08 19:03:26,374 INFO L226 Difference]: Without dead ends: 39817 [2024-11-08 19:03:26,396 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:03:26,397 INFO L432 NwaCegarLoop]: 315 mSDtfsCounter, 452 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:03:26,397 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [452 Valid, 826 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:03:26,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39817 states. [2024-11-08 19:03:27,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39817 to 31003. [2024-11-08 19:03:27,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31003 states, 31002 states have (on average 1.5418037545964776) internal successors, (47799), 31002 states have internal predecessors, (47799), 0 states have call successors, (0), 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 19:03:27,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31003 states to 31003 states and 47799 transitions. [2024-11-08 19:03:27,784 INFO L78 Accepts]: Start accepts. Automaton has 31003 states and 47799 transitions. Word has length 109 [2024-11-08 19:03:27,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:03:27,785 INFO L471 AbstractCegarLoop]: Abstraction has 31003 states and 47799 transitions. [2024-11-08 19:03:27,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:03:27,785 INFO L276 IsEmpty]: Start isEmpty. Operand 31003 states and 47799 transitions. [2024-11-08 19:03:27,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 19:03:27,787 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:03:27,788 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:03:27,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 19:03:27,788 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:03:27,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:03:27,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1112936607, now seen corresponding path program 1 times [2024-11-08 19:03:27,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:03:27,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319728240] [2024-11-08 19:03:27,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:03:27,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:03:27,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:28,222 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-08 19:03:28,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:03:28,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319728240] [2024-11-08 19:03:28,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319728240] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:03:28,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:03:28,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:03:28,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953855029] [2024-11-08 19:03:28,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:03:28,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:03:28,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:03:28,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:03:28,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:03:28,226 INFO L87 Difference]: Start difference. First operand 31003 states and 47799 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 0 states have call successors, (0), 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 19:03:29,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:03:29,208 INFO L93 Difference]: Finished difference Result 53263 states and 82485 transitions. [2024-11-08 19:03:29,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:03:29,209 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 0 states have call successors, (0), 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 109 [2024-11-08 19:03:29,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:03:29,341 INFO L225 Difference]: With dead ends: 53263 [2024-11-08 19:03:29,341 INFO L226 Difference]: Without dead ends: 43681 [2024-11-08 19:03:29,362 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:03:29,363 INFO L432 NwaCegarLoop]: 317 mSDtfsCounter, 445 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:03:29,363 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 950 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:03:29,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43681 states. [2024-11-08 19:03:30,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43681 to 42075. [2024-11-08 19:03:30,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42075 states, 42074 states have (on average 1.5423064125112895) internal successors, (64891), 42074 states have internal predecessors, (64891), 0 states have call successors, (0), 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 19:03:30,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42075 states to 42075 states and 64891 transitions. [2024-11-08 19:03:30,977 INFO L78 Accepts]: Start accepts. Automaton has 42075 states and 64891 transitions. Word has length 109 [2024-11-08 19:03:30,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:03:30,978 INFO L471 AbstractCegarLoop]: Abstraction has 42075 states and 64891 transitions. [2024-11-08 19:03:30,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 0 states have call successors, (0), 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 19:03:30,978 INFO L276 IsEmpty]: Start isEmpty. Operand 42075 states and 64891 transitions. [2024-11-08 19:03:30,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 19:03:30,980 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:03:30,981 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:03:30,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 19:03:30,981 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:03:30,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:03:30,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1978166111, now seen corresponding path program 1 times [2024-11-08 19:03:30,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:03:30,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659301415] [2024-11-08 19:03:30,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:03:31,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:03:31,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:31,599 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 19:03:31,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:03:31,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659301415] [2024-11-08 19:03:31,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659301415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:03:31,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:03:31,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:03:31,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386516596] [2024-11-08 19:03:31,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:03:31,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:03:31,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:03:31,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:03:31,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:03:31,604 INFO L87 Difference]: Start difference. First operand 42075 states and 64891 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 0 states have call successors, (0), 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 19:03:32,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:03:32,816 INFO L93 Difference]: Finished difference Result 59859 states and 92855 transitions. [2024-11-08 19:03:32,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:03:32,817 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 0 states have call successors, (0), 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 109 [2024-11-08 19:03:32,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:03:32,942 INFO L225 Difference]: With dead ends: 59859 [2024-11-08 19:03:32,942 INFO L226 Difference]: Without dead ends: 50017 [2024-11-08 19:03:32,964 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:03:32,964 INFO L432 NwaCegarLoop]: 305 mSDtfsCounter, 443 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:03:32,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [443 Valid, 923 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:03:33,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50017 states. [2024-11-08 19:03:34,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50017 to 48411. [2024-11-08 19:03:34,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48411 states, 48410 states have (on average 1.5449493906217724) internal successors, (74791), 48410 states have internal predecessors, (74791), 0 states have call successors, (0), 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 19:03:34,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48411 states to 48411 states and 74791 transitions. [2024-11-08 19:03:34,387 INFO L78 Accepts]: Start accepts. Automaton has 48411 states and 74791 transitions. Word has length 109 [2024-11-08 19:03:34,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:03:34,387 INFO L471 AbstractCegarLoop]: Abstraction has 48411 states and 74791 transitions. [2024-11-08 19:03:34,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 0 states have call successors, (0), 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 19:03:34,388 INFO L276 IsEmpty]: Start isEmpty. Operand 48411 states and 74791 transitions. [2024-11-08 19:03:34,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-08 19:03:34,391 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:03:34,391 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:03:34,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 19:03:34,392 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:03:34,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:03:34,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1178527389, now seen corresponding path program 1 times [2024-11-08 19:03:34,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:03:34,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123540843] [2024-11-08 19:03:34,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:03:34,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:03:34,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:34,877 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 19:03:34,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:03:34,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123540843] [2024-11-08 19:03:34,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123540843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:03:34,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:03:34,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 19:03:34,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080010809] [2024-11-08 19:03:34,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:03:34,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:03:34,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:03:34,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:03:34,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:03:34,883 INFO L87 Difference]: Start difference. First operand 48411 states and 74791 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 0 states have call successors, (0), 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 19:03:36,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:03:36,477 INFO L93 Difference]: Finished difference Result 79154 states and 122950 transitions. [2024-11-08 19:03:36,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:03:36,478 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 0 states have call successors, (0), 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 110 [2024-11-08 19:03:36,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:03:36,604 INFO L225 Difference]: With dead ends: 79154 [2024-11-08 19:03:36,604 INFO L226 Difference]: Without dead ends: 62976 [2024-11-08 19:03:36,621 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:03:36,622 INFO L432 NwaCegarLoop]: 310 mSDtfsCounter, 187 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:03:36,623 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 678 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:03:36,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62976 states. [2024-11-08 19:03:37,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62976 to 61372. [2024-11-08 19:03:37,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61372 states, 61371 states have (on average 1.5451434716722883) internal successors, (94827), 61371 states have internal predecessors, (94827), 0 states have call successors, (0), 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 19:03:37,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61372 states to 61372 states and 94827 transitions. [2024-11-08 19:03:37,983 INFO L78 Accepts]: Start accepts. Automaton has 61372 states and 94827 transitions. Word has length 110 [2024-11-08 19:03:37,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:03:37,984 INFO L471 AbstractCegarLoop]: Abstraction has 61372 states and 94827 transitions. [2024-11-08 19:03:37,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 0 states have call successors, (0), 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 19:03:37,985 INFO L276 IsEmpty]: Start isEmpty. Operand 61372 states and 94827 transitions. [2024-11-08 19:03:37,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-08 19:03:37,988 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:03:37,988 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:03:37,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 19:03:37,989 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:03:37,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:03:37,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1601229215, now seen corresponding path program 1 times [2024-11-08 19:03:37,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:03:37,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601206511] [2024-11-08 19:03:37,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:03:37,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:03:38,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:38,336 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 19:03:38,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:03:38,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601206511] [2024-11-08 19:03:38,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601206511] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:03:38,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:03:38,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:03:38,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772448931] [2024-11-08 19:03:38,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:03:38,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:03:38,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:03:38,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:03:38,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:03:38,342 INFO L87 Difference]: Start difference. First operand 61372 states and 94827 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 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 19:03:40,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:03:40,212 INFO L93 Difference]: Finished difference Result 132988 states and 206196 transitions. [2024-11-08 19:03:40,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:03:40,213 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 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 110 [2024-11-08 19:03:40,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:03:40,400 INFO L225 Difference]: With dead ends: 132988 [2024-11-08 19:03:40,401 INFO L226 Difference]: Without dead ends: 103954 [2024-11-08 19:03:40,443 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 19:03:40,444 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 81 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:03:40,445 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 368 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:03:40,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103954 states. [2024-11-08 19:03:42,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103954 to 103676. [2024-11-08 19:03:43,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103676 states, 103675 states have (on average 1.5447986496262358) internal successors, (160157), 103675 states have internal predecessors, (160157), 0 states have call successors, (0), 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 19:03:43,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103676 states to 103676 states and 160157 transitions. [2024-11-08 19:03:43,357 INFO L78 Accepts]: Start accepts. Automaton has 103676 states and 160157 transitions. Word has length 110 [2024-11-08 19:03:43,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:03:43,358 INFO L471 AbstractCegarLoop]: Abstraction has 103676 states and 160157 transitions. [2024-11-08 19:03:43,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 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 19:03:43,358 INFO L276 IsEmpty]: Start isEmpty. Operand 103676 states and 160157 transitions. [2024-11-08 19:03:43,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 19:03:43,362 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:03:43,362 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:03:43,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 19:03:43,363 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:03:43,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:03:43,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1317319656, now seen corresponding path program 1 times [2024-11-08 19:03:43,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:03:43,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356962862] [2024-11-08 19:03:43,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:03:43,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:03:43,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:43,558 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-08 19:03:43,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:03:43,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356962862] [2024-11-08 19:03:43,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356962862] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:03:43,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:03:43,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 19:03:43,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571559861] [2024-11-08 19:03:43,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:03:43,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:03:43,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:03:43,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:03:43,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:03:43,561 INFO L87 Difference]: Start difference. First operand 103676 states and 160157 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:03:45,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:03:45,523 INFO L93 Difference]: Finished difference Result 158887 states and 246384 transitions. [2024-11-08 19:03:45,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:03:45,524 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2024-11-08 19:03:45,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:03:45,758 INFO L225 Difference]: With dead ends: 158887 [2024-11-08 19:03:45,758 INFO L226 Difference]: Without dead ends: 128825 [2024-11-08 19:03:45,807 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:03:45,809 INFO L432 NwaCegarLoop]: 307 mSDtfsCounter, 192 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:03:45,809 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 675 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:03:45,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128825 states. [2024-11-08 19:03:48,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128825 to 122437. [2024-11-08 19:03:48,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122437 states, 122436 states have (on average 1.5437208010715802) internal successors, (189007), 122436 states have internal predecessors, (189007), 0 states have call successors, (0), 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 19:03:49,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122437 states to 122437 states and 189007 transitions. [2024-11-08 19:03:49,063 INFO L78 Accepts]: Start accepts. Automaton has 122437 states and 189007 transitions. Word has length 111 [2024-11-08 19:03:49,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:03:49,064 INFO L471 AbstractCegarLoop]: Abstraction has 122437 states and 189007 transitions. [2024-11-08 19:03:49,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:03:49,064 INFO L276 IsEmpty]: Start isEmpty. Operand 122437 states and 189007 transitions. [2024-11-08 19:03:49,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 19:03:49,068 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:03:49,068 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:03:49,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 19:03:49,069 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:03:49,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:03:49,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1956579286, now seen corresponding path program 1 times [2024-11-08 19:03:49,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:03:49,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057970251] [2024-11-08 19:03:49,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:03:49,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:03:49,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:49,216 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-08 19:03:49,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:03:49,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057970251] [2024-11-08 19:03:49,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057970251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:03:49,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:03:49,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:03:49,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798118937] [2024-11-08 19:03:49,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:03:49,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:03:49,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:03:49,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:03:49,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:03:49,220 INFO L87 Difference]: Start difference. First operand 122437 states and 189007 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:03:53,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:03:53,495 INFO L93 Difference]: Finished difference Result 259823 states and 401914 transitions. [2024-11-08 19:03:53,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:03:53,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2024-11-08 19:03:53,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:03:53,922 INFO L225 Difference]: With dead ends: 259823 [2024-11-08 19:03:53,922 INFO L226 Difference]: Without dead ends: 201641 [2024-11-08 19:03:53,992 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 19:03:53,993 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 81 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:03:53,993 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 367 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:03:54,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201641 states. [2024-11-08 19:03:59,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201641 to 201111. [2024-11-08 19:03:59,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201111 states, 201110 states have (on average 1.5416687385013177) internal successors, (310045), 201110 states have internal predecessors, (310045), 0 states have call successors, (0), 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 19:03:59,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201111 states to 201111 states and 310045 transitions. [2024-11-08 19:03:59,984 INFO L78 Accepts]: Start accepts. Automaton has 201111 states and 310045 transitions. Word has length 111 [2024-11-08 19:03:59,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:03:59,985 INFO L471 AbstractCegarLoop]: Abstraction has 201111 states and 310045 transitions. [2024-11-08 19:03:59,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:03:59,985 INFO L276 IsEmpty]: Start isEmpty. Operand 201111 states and 310045 transitions. [2024-11-08 19:03:59,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 19:03:59,987 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:03:59,987 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:03:59,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-08 19:03:59,988 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:03:59,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:03:59,988 INFO L85 PathProgramCache]: Analyzing trace with hash -694621549, now seen corresponding path program 1 times [2024-11-08 19:03:59,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:03:59,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359948845] [2024-11-08 19:03:59,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:03:59,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:04:00,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:04:00,104 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:04:00,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:04:00,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359948845] [2024-11-08 19:04:00,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359948845] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:04:00,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:04:00,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:04:00,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106795994] [2024-11-08 19:04:00,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:04:00,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:04:00,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:04:00,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:04:00,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:04:00,108 INFO L87 Difference]: Start difference. First operand 201111 states and 310045 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 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 19:04:06,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:04:06,434 INFO L93 Difference]: Finished difference Result 599120 states and 921764 transitions. [2024-11-08 19:04:06,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:04:06,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2024-11-08 19:04:06,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:04:07,601 INFO L225 Difference]: With dead ends: 599120 [2024-11-08 19:04:07,602 INFO L226 Difference]: Without dead ends: 398081 [2024-11-08 19:04:07,735 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 19:04:07,737 INFO L432 NwaCegarLoop]: 258 mSDtfsCounter, 132 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:04:07,738 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 452 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:04:08,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398081 states.