./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87e7c3-6611-4b90-9a8d-05138c8edaf0/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87e7c3-6611-4b90-9a8d-05138c8edaf0/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_cf87e7c3-6611-4b90-9a8d-05138c8edaf0/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87e7c3-6611-4b90-9a8d-05138c8edaf0/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87e7c3-6611-4b90-9a8d-05138c8edaf0/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_cf87e7c3-6611-4b90-9a8d-05138c8edaf0/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 eb6a86313c6847913ca8b6f4f78c128447d9c9cbacc492e7ef1a5540e3f6a711 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:41:35,349 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:41:35,448 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87e7c3-6611-4b90-9a8d-05138c8edaf0/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 18:41:35,457 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:41:35,461 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:41:35,496 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:41:35,497 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:41:35,497 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:41:35,498 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:41:35,499 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:41:35,501 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:41:35,502 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:41:35,503 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:41:35,503 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:41:35,503 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:41:35,503 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:41:35,504 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:41:35,504 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:41:35,504 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:41:35,505 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:41:35,505 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:41:35,509 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:41:35,509 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:41:35,509 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:41:35,510 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:41:35,510 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:41:35,510 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:41:35,510 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:41:35,511 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:41:35,511 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:41:35,511 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:41:35,511 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:41:35,528 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:41:35,529 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:41:35,530 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:41:35,530 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:41:35,530 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:41:35,530 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:41:35,531 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:41:35,531 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:41:35,531 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:41:35,532 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:41:35,532 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_cf87e7c3-6611-4b90-9a8d-05138c8edaf0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87e7c3-6611-4b90-9a8d-05138c8edaf0/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb6a86313c6847913ca8b6f4f78c128447d9c9cbacc492e7ef1a5540e3f6a711 [2024-11-08 18:41:35,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:41:35,839 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:41:35,842 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:41:35,844 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:41:35,845 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:41:35,846 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87e7c3-6611-4b90-9a8d-05138c8edaf0/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c Unable to find full path for "g++" [2024-11-08 18:41:38,058 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:41:38,275 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:41:38,275 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87e7c3-6611-4b90-9a8d-05138c8edaf0/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-08 18:41:38,296 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87e7c3-6611-4b90-9a8d-05138c8edaf0/bin/uautomizer-verify-jihMAELWvX/data/c7ad38db0/94d6fa8562e6437a8a4ddfa93149f85e/FLAG04b7644f0 [2024-11-08 18:41:38,627 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87e7c3-6611-4b90-9a8d-05138c8edaf0/bin/uautomizer-verify-jihMAELWvX/data/c7ad38db0/94d6fa8562e6437a8a4ddfa93149f85e [2024-11-08 18:41:38,630 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:41:38,632 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:41:38,633 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:41:38,633 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:41:38,643 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:41:38,644 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:41:38" (1/1) ... [2024-11-08 18:41:38,646 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12948ec1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:41:38, skipping insertion in model container [2024-11-08 18:41:38,646 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:41:38" (1/1) ... [2024-11-08 18:41:38,703 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:41:39,036 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_cf87e7c3-6611-4b90-9a8d-05138c8edaf0/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[8460,8473] [2024-11-08 18:41:39,134 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:41:39,151 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:41:39,258 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_cf87e7c3-6611-4b90-9a8d-05138c8edaf0/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[8460,8473] [2024-11-08 18:41:39,311 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:41:39,333 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:41:39,334 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:41:39 WrapperNode [2024-11-08 18:41:39,334 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:41:39,335 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:41:39,336 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:41:39,336 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:41:39,344 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:41:39" (1/1) ... [2024-11-08 18:41:39,358 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:41:39" (1/1) ... [2024-11-08 18:41:39,410 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 838 [2024-11-08 18:41:39,413 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:41:39,414 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:41:39,415 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:41:39,415 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:41:39,427 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:41:39" (1/1) ... [2024-11-08 18:41:39,427 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:41:39" (1/1) ... [2024-11-08 18:41:39,432 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:41:39" (1/1) ... [2024-11-08 18:41:39,463 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 18:41:39,464 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:41:39" (1/1) ... [2024-11-08 18:41:39,464 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:41:39" (1/1) ... [2024-11-08 18:41:39,483 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:41:39" (1/1) ... [2024-11-08 18:41:39,497 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:41:39" (1/1) ... [2024-11-08 18:41:39,503 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:41:39" (1/1) ... [2024-11-08 18:41:39,510 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:41:39" (1/1) ... [2024-11-08 18:41:39,522 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:41:39,523 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:41:39,523 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:41:39,523 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:41:39,524 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:41:39" (1/1) ... [2024-11-08 18:41:39,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:41:39,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87e7c3-6611-4b90-9a8d-05138c8edaf0/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:41:39,590 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87e7c3-6611-4b90-9a8d-05138c8edaf0/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:41:39,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf87e7c3-6611-4b90-9a8d-05138c8edaf0/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:41:39,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:41:39,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:41:39,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:41:39,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:41:39,857 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:41:39,860 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:41:40,956 INFO L? ?]: Removed 93 outVars from TransFormulas that were not future-live. [2024-11-08 18:41:40,956 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:41:40,984 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:41:40,985 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 18:41:40,985 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:41:40 BoogieIcfgContainer [2024-11-08 18:41:40,985 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:41:40,990 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:41:40,990 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:41:40,994 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:41:40,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:41:38" (1/3) ... [2024-11-08 18:41:40,994 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dca65ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:41:40, skipping insertion in model container [2024-11-08 18:41:40,995 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:41:39" (2/3) ... [2024-11-08 18:41:40,995 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dca65ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:41:40, skipping insertion in model container [2024-11-08 18:41:40,995 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:41:40" (3/3) ... [2024-11-08 18:41:40,997 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-08 18:41:41,014 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:41:41,015 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 18:41:41,095 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:41:41,102 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;@2f9be84d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:41:41,102 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 18:41:41,108 INFO L276 IsEmpty]: Start isEmpty. Operand has 206 states, 204 states have (on average 1.7205882352941178) internal successors, (351), 205 states have internal predecessors, (351), 0 states have call successors, (0), 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 18:41:41,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-08 18:41:41,120 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:41:41,120 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] [2024-11-08 18:41:41,121 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:41:41,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:41:41,128 INFO L85 PathProgramCache]: Analyzing trace with hash -465870500, now seen corresponding path program 1 times [2024-11-08 18:41:41,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:41:41,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800189956] [2024-11-08 18:41:41,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:41:41,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:41:41,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:42,088 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 18:41:42,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:41:42,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800189956] [2024-11-08 18:41:42,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800189956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:41:42,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:41:42,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:41:42,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774775688] [2024-11-08 18:41:42,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:41:42,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:41:42,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:41:42,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:41:42,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:41:42,129 INFO L87 Difference]: Start difference. First operand has 206 states, 204 states have (on average 1.7205882352941178) internal successors, (351), 205 states have internal predecessors, (351), 0 states have call successors, (0), 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 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 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 18:41:42,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:41:42,493 INFO L93 Difference]: Finished difference Result 828 states and 1339 transitions. [2024-11-08 18:41:42,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:41:42,496 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2024-11-08 18:41:42,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:41:42,514 INFO L225 Difference]: With dead ends: 828 [2024-11-08 18:41:42,514 INFO L226 Difference]: Without dead ends: 713 [2024-11-08 18:41:42,521 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:41:42,528 INFO L432 NwaCegarLoop]: 356 mSDtfsCounter, 2417 mSDsluCounter, 1965 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2417 SdHoareTripleChecker+Valid, 2321 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:41:42,529 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2417 Valid, 2321 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:41:42,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2024-11-08 18:41:42,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 314. [2024-11-08 18:41:42,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 313 states have (on average 1.5047923322683705) internal successors, (471), 313 states have internal predecessors, (471), 0 states have call successors, (0), 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 18:41:42,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 471 transitions. [2024-11-08 18:41:42,625 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 471 transitions. Word has length 79 [2024-11-08 18:41:42,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:41:42,628 INFO L471 AbstractCegarLoop]: Abstraction has 314 states and 471 transitions. [2024-11-08 18:41:42,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 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 18:41:42,628 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 471 transitions. [2024-11-08 18:41:42,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-08 18:41:42,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:41:42,632 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 18:41:42,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:41:42,634 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:41:42,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:41:42,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1819425779, now seen corresponding path program 1 times [2024-11-08 18:41:42,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:41:42,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555650186] [2024-11-08 18:41:42,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:41:42,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:41:42,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:43,151 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 18:41:43,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:41:43,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555650186] [2024-11-08 18:41:43,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555650186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:41:43,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:41:43,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:41:43,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968945056] [2024-11-08 18:41:43,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:41:43,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:41:43,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:41:43,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:41:43,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:41:43,159 INFO L87 Difference]: Start difference. First operand 314 states and 471 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 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 18:41:43,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:41:43,527 INFO L93 Difference]: Finished difference Result 1370 states and 2124 transitions. [2024-11-08 18:41:43,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:41:43,529 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 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 18:41:43,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:41:43,535 INFO L225 Difference]: With dead ends: 1370 [2024-11-08 18:41:43,536 INFO L226 Difference]: Without dead ends: 1132 [2024-11-08 18:41:43,540 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:41:43,542 INFO L432 NwaCegarLoop]: 455 mSDtfsCounter, 1200 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1200 SdHoareTripleChecker+Valid, 1337 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:41:43,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1200 Valid, 1337 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:41:43,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2024-11-08 18:41:43,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 1124. [2024-11-08 18:41:43,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1124 states, 1123 states have (on average 1.545859305431879) internal successors, (1736), 1123 states have internal predecessors, (1736), 0 states have call successors, (0), 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 18:41:43,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1736 transitions. [2024-11-08 18:41:43,599 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1736 transitions. Word has length 80 [2024-11-08 18:41:43,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:41:43,600 INFO L471 AbstractCegarLoop]: Abstraction has 1124 states and 1736 transitions. [2024-11-08 18:41:43,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 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 18:41:43,601 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1736 transitions. [2024-11-08 18:41:43,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-08 18:41:43,605 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:41:43,605 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 18:41:43,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:41:43,606 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:41:43,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:41:43,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1286257119, now seen corresponding path program 1 times [2024-11-08 18:41:43,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:41:43,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028874853] [2024-11-08 18:41:43,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:41:43,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:41:43,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:43,870 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 18:41:43,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:41:43,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028874853] [2024-11-08 18:41:43,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028874853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:41:43,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:41:43,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:41:43,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482150193] [2024-11-08 18:41:43,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:41:43,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:41:43,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:41:43,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:41:43,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:41:43,876 INFO L87 Difference]: Start difference. First operand 1124 states and 1736 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 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 18:41:44,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:41:44,283 INFO L93 Difference]: Finished difference Result 2981 states and 4661 transitions. [2024-11-08 18:41:44,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:41:44,284 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 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 18:41:44,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:41:44,292 INFO L225 Difference]: With dead ends: 2981 [2024-11-08 18:41:44,293 INFO L226 Difference]: Without dead ends: 1934 [2024-11-08 18:41:44,296 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:41:44,297 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 1111 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1111 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:41:44,301 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1111 Valid, 287 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:41:44,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1934 states. [2024-11-08 18:41:44,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1934 to 1932. [2024-11-08 18:41:44,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1932 states, 1931 states have (on average 1.5546349041947178) internal successors, (3002), 1931 states have internal predecessors, (3002), 0 states have call successors, (0), 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 18:41:44,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1932 states to 1932 states and 3002 transitions. [2024-11-08 18:41:44,349 INFO L78 Accepts]: Start accepts. Automaton has 1932 states and 3002 transitions. Word has length 81 [2024-11-08 18:41:44,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:41:44,351 INFO L471 AbstractCegarLoop]: Abstraction has 1932 states and 3002 transitions. [2024-11-08 18:41:44,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 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 18:41:44,352 INFO L276 IsEmpty]: Start isEmpty. Operand 1932 states and 3002 transitions. [2024-11-08 18:41:44,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-08 18:41:44,358 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:41:44,359 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 18:41:44,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:41:44,359 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:41:44,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:41:44,360 INFO L85 PathProgramCache]: Analyzing trace with hash 963502145, now seen corresponding path program 1 times [2024-11-08 18:41:44,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:41:44,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399653919] [2024-11-08 18:41:44,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:41:44,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:41:44,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:44,598 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 18:41:44,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:41:44,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399653919] [2024-11-08 18:41:44,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399653919] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:41:44,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:41:44,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:41:44,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660592447] [2024-11-08 18:41:44,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:41:44,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:41:44,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:41:44,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:41:44,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:41:44,605 INFO L87 Difference]: Start difference. First operand 1932 states and 3002 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 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 18:41:44,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:41:44,955 INFO L93 Difference]: Finished difference Result 5245 states and 8233 transitions. [2024-11-08 18:41:44,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:41:44,956 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 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 18:41:44,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:41:44,968 INFO L225 Difference]: With dead ends: 5245 [2024-11-08 18:41:44,968 INFO L226 Difference]: Without dead ends: 3454 [2024-11-08 18:41:44,972 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:41:44,973 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 1065 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1065 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:41:44,973 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1065 Valid, 298 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:41:44,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3454 states. [2024-11-08 18:41:45,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3454 to 3452. [2024-11-08 18:41:45,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3452 states, 3451 states have (on average 1.5609968125181106) internal successors, (5387), 3451 states have internal predecessors, (5387), 0 states have call successors, (0), 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 18:41:45,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3452 states to 3452 states and 5387 transitions. [2024-11-08 18:41:45,056 INFO L78 Accepts]: Start accepts. Automaton has 3452 states and 5387 transitions. Word has length 81 [2024-11-08 18:41:45,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:41:45,056 INFO L471 AbstractCegarLoop]: Abstraction has 3452 states and 5387 transitions. [2024-11-08 18:41:45,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 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 18:41:45,057 INFO L276 IsEmpty]: Start isEmpty. Operand 3452 states and 5387 transitions. [2024-11-08 18:41:45,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-08 18:41:45,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:41:45,060 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 18:41:45,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 18:41:45,061 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:41:45,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:41:45,061 INFO L85 PathProgramCache]: Analyzing trace with hash -990576080, now seen corresponding path program 1 times [2024-11-08 18:41:45,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:41:45,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804048565] [2024-11-08 18:41:45,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:41:45,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:41:45,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:45,327 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 18:41:45,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:41:45,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804048565] [2024-11-08 18:41:45,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804048565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:41:45,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:41:45,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:41:45,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888718968] [2024-11-08 18:41:45,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:41:45,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:41:45,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:41:45,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:41:45,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:41:45,330 INFO L87 Difference]: Start difference. First operand 3452 states and 5387 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 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 18:41:45,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:41:45,665 INFO L93 Difference]: Finished difference Result 9853 states and 15454 transitions. [2024-11-08 18:41:45,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:41:45,665 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 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 18:41:45,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:41:45,686 INFO L225 Difference]: With dead ends: 9853 [2024-11-08 18:41:45,686 INFO L226 Difference]: Without dead ends: 6508 [2024-11-08 18:41:45,690 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:41:45,691 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 1071 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1071 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:41:45,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1071 Valid, 287 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:41:45,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6508 states. [2024-11-08 18:41:45,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6508 to 6506. [2024-11-08 18:41:45,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6506 states, 6505 states have (on average 1.5600307455803228) internal successors, (10148), 6505 states have internal predecessors, (10148), 0 states have call successors, (0), 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 18:41:45,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6506 states to 6506 states and 10148 transitions. [2024-11-08 18:41:45,835 INFO L78 Accepts]: Start accepts. Automaton has 6506 states and 10148 transitions. Word has length 81 [2024-11-08 18:41:45,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:41:45,836 INFO L471 AbstractCegarLoop]: Abstraction has 6506 states and 10148 transitions. [2024-11-08 18:41:45,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 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 18:41:45,836 INFO L276 IsEmpty]: Start isEmpty. Operand 6506 states and 10148 transitions. [2024-11-08 18:41:45,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-08 18:41:45,839 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:41:45,839 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 18:41:45,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 18:41:45,839 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:41:45,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:41:45,840 INFO L85 PathProgramCache]: Analyzing trace with hash 2100922190, now seen corresponding path program 1 times [2024-11-08 18:41:45,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:41:45,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382004751] [2024-11-08 18:41:45,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:41:45,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:41:45,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:46,087 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 18:41:46,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:41:46,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382004751] [2024-11-08 18:41:46,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382004751] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:41:46,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:41:46,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:41:46,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889611843] [2024-11-08 18:41:46,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:41:46,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:41:46,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:41:46,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:41:46,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:41:46,091 INFO L87 Difference]: Start difference. First operand 6506 states and 10148 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 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 18:41:46,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:41:46,530 INFO L93 Difference]: Finished difference Result 19180 states and 29998 transitions. [2024-11-08 18:41:46,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:41:46,531 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 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 18:41:46,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:41:46,583 INFO L225 Difference]: With dead ends: 19180 [2024-11-08 18:41:46,583 INFO L226 Difference]: Without dead ends: 12728 [2024-11-08 18:41:46,593 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:41:46,594 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 1129 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1129 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:41:46,595 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1129 Valid, 283 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:41:46,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12728 states. [2024-11-08 18:41:46,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12728 to 12726. [2024-11-08 18:41:46,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12726 states, 12725 states have (on average 1.5544990176817288) internal successors, (19781), 12725 states have internal predecessors, (19781), 0 states have call successors, (0), 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 18:41:46,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12726 states to 12726 states and 19781 transitions. [2024-11-08 18:41:46,960 INFO L78 Accepts]: Start accepts. Automaton has 12726 states and 19781 transitions. Word has length 81 [2024-11-08 18:41:46,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:41:46,961 INFO L471 AbstractCegarLoop]: Abstraction has 12726 states and 19781 transitions. [2024-11-08 18:41:46,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 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 18:41:46,961 INFO L276 IsEmpty]: Start isEmpty. Operand 12726 states and 19781 transitions. [2024-11-08 18:41:46,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-08 18:41:46,969 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:41:46,969 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:41:46,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 18:41:46,971 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:41:46,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:41:46,972 INFO L85 PathProgramCache]: Analyzing trace with hash -336684807, now seen corresponding path program 1 times [2024-11-08 18:41:46,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:41:46,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752812128] [2024-11-08 18:41:46,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:41:46,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:41:47,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:47,466 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 18:41:47,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:41:47,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752812128] [2024-11-08 18:41:47,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752812128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:41:47,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:41:47,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:41:47,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940731589] [2024-11-08 18:41:47,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:41:47,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:41:47,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:41:47,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:41:47,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:41:47,469 INFO L87 Difference]: Start difference. First operand 12726 states and 19781 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:41:47,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:41:47,539 INFO L93 Difference]: Finished difference Result 13048 states and 20262 transitions. [2024-11-08 18:41:47,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:41:47,540 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-11-08 18:41:47,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:41:47,578 INFO L225 Difference]: With dead ends: 13048 [2024-11-08 18:41:47,579 INFO L226 Difference]: Without dead ends: 13046 [2024-11-08 18:41:47,583 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 18:41:47,585 INFO L432 NwaCegarLoop]: 282 mSDtfsCounter, 0 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:41:47,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1118 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:41:47,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13046 states. [2024-11-08 18:41:47,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13046 to 13046. [2024-11-08 18:41:47,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13046 states, 13045 states have (on average 1.5408968953622078) internal successors, (20101), 13045 states have internal predecessors, (20101), 0 states have call successors, (0), 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 18:41:47,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13046 states to 13046 states and 20101 transitions. [2024-11-08 18:41:47,950 INFO L78 Accepts]: Start accepts. Automaton has 13046 states and 20101 transitions. Word has length 82 [2024-11-08 18:41:47,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:41:47,950 INFO L471 AbstractCegarLoop]: Abstraction has 13046 states and 20101 transitions. [2024-11-08 18:41:47,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:41:47,951 INFO L276 IsEmpty]: Start isEmpty. Operand 13046 states and 20101 transitions. [2024-11-08 18:41:47,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-08 18:41:47,956 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:41:47,957 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:41:47,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 18:41:47,957 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:41:47,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:41:47,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1586000185, now seen corresponding path program 1 times [2024-11-08 18:41:47,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:41:47,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721388526] [2024-11-08 18:41:47,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:41:47,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:41:48,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:48,675 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 18:41:48,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:41:48,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721388526] [2024-11-08 18:41:48,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721388526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:41:48,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:41:48,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:41:48,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919029441] [2024-11-08 18:41:48,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:41:48,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:41:48,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:41:48,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:41:48,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:41:48,678 INFO L87 Difference]: Start difference. First operand 13046 states and 20101 transitions. Second operand has 10 states, 10 states have (on average 8.3) internal successors, (83), 9 states have internal predecessors, (83), 0 states have call successors, (0), 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 18:41:49,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:41:49,733 INFO L93 Difference]: Finished difference Result 24507 states and 37502 transitions. [2024-11-08 18:41:49,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 18:41:49,734 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.3) internal successors, (83), 9 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-11-08 18:41:49,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:41:49,775 INFO L225 Difference]: With dead ends: 24507 [2024-11-08 18:41:49,775 INFO L226 Difference]: Without dead ends: 17749 [2024-11-08 18:41:49,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2024-11-08 18:41:49,787 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 1825 mSDsluCounter, 732 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1825 SdHoareTripleChecker+Valid, 907 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:41:49,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1825 Valid, 907 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 18:41:49,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17749 states. [2024-11-08 18:41:50,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17749 to 13227. [2024-11-08 18:41:50,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13227 states, 13226 states have (on average 1.5387872372599425) internal successors, (20352), 13226 states have internal predecessors, (20352), 0 states have call successors, (0), 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 18:41:50,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13227 states to 13227 states and 20352 transitions. [2024-11-08 18:41:50,187 INFO L78 Accepts]: Start accepts. Automaton has 13227 states and 20352 transitions. Word has length 83 [2024-11-08 18:41:50,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:41:50,187 INFO L471 AbstractCegarLoop]: Abstraction has 13227 states and 20352 transitions. [2024-11-08 18:41:50,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.3) internal successors, (83), 9 states have internal predecessors, (83), 0 states have call successors, (0), 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 18:41:50,188 INFO L276 IsEmpty]: Start isEmpty. Operand 13227 states and 20352 transitions. [2024-11-08 18:41:50,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-08 18:41:50,193 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:41:50,193 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:41:50,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 18:41:50,193 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:41:50,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:41:50,194 INFO L85 PathProgramCache]: Analyzing trace with hash 640573063, now seen corresponding path program 1 times [2024-11-08 18:41:50,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:41:50,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534223495] [2024-11-08 18:41:50,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:41:50,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:41:50,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:50,883 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 18:41:50,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:41:50,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534223495] [2024-11-08 18:41:50,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534223495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:41:50,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:41:50,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:41:50,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715003954] [2024-11-08 18:41:50,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:41:50,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:41:50,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:41:50,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:41:50,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:41:50,888 INFO L87 Difference]: Start difference. First operand 13227 states and 20352 transitions. Second operand has 10 states, 10 states have (on average 8.3) internal successors, (83), 9 states have internal predecessors, (83), 0 states have call successors, (0), 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 18:41:51,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:41:51,897 INFO L93 Difference]: Finished difference Result 21341 states and 32644 transitions. [2024-11-08 18:41:51,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 18:41:51,898 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.3) internal successors, (83), 9 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-11-08 18:41:51,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:41:51,949 INFO L225 Difference]: With dead ends: 21341 [2024-11-08 18:41:51,950 INFO L226 Difference]: Without dead ends: 19789 [2024-11-08 18:41:51,959 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2024-11-08 18:41:51,962 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 1252 mSDsluCounter, 914 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1252 SdHoareTripleChecker+Valid, 1084 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:41:51,963 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1252 Valid, 1084 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 806 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 18:41:51,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19789 states. [2024-11-08 18:41:52,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19789 to 13227. [2024-11-08 18:41:52,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13227 states, 13226 states have (on average 1.5386360199606834) internal successors, (20350), 13226 states have internal predecessors, (20350), 0 states have call successors, (0), 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 18:41:52,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13227 states to 13227 states and 20350 transitions. [2024-11-08 18:41:52,337 INFO L78 Accepts]: Start accepts. Automaton has 13227 states and 20350 transitions. Word has length 83 [2024-11-08 18:41:52,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:41:52,337 INFO L471 AbstractCegarLoop]: Abstraction has 13227 states and 20350 transitions. [2024-11-08 18:41:52,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.3) internal successors, (83), 9 states have internal predecessors, (83), 0 states have call successors, (0), 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 18:41:52,338 INFO L276 IsEmpty]: Start isEmpty. Operand 13227 states and 20350 transitions. [2024-11-08 18:41:52,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-08 18:41:52,343 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:41:52,343 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:41:52,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 18:41:52,343 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:41:52,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:41:52,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1864782503, now seen corresponding path program 1 times [2024-11-08 18:41:52,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:41:52,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333041294] [2024-11-08 18:41:52,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:41:52,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:41:52,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:52,935 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 18:41:52,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:41:52,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333041294] [2024-11-08 18:41:52,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333041294] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:41:52,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:41:52,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:41:52,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021821588] [2024-11-08 18:41:52,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:41:52,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:41:52,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:41:52,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:41:52,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:41:52,938 INFO L87 Difference]: Start difference. First operand 13227 states and 20350 transitions. Second operand has 10 states, 10 states have (on average 8.3) internal successors, (83), 9 states have internal predecessors, (83), 0 states have call successors, (0), 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 18:41:54,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:41:54,195 INFO L93 Difference]: Finished difference Result 24711 states and 37700 transitions. [2024-11-08 18:41:54,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 18:41:54,196 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.3) internal successors, (83), 9 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-11-08 18:41:54,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:41:54,242 INFO L225 Difference]: With dead ends: 24711 [2024-11-08 18:41:54,243 INFO L226 Difference]: Without dead ends: 20533 [2024-11-08 18:41:54,253 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-11-08 18:41:54,254 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 1412 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 972 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1412 SdHoareTripleChecker+Valid, 1193 SdHoareTripleChecker+Invalid, 983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 18:41:54,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1412 Valid, 1193 Invalid, 983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 972 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 18:41:54,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20533 states. [2024-11-08 18:41:54,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20533 to 13531. [2024-11-08 18:41:54,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13531 states, 13530 states have (on average 1.536289726533629) internal successors, (20786), 13530 states have internal predecessors, (20786), 0 states have call successors, (0), 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 18:41:54,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13531 states to 13531 states and 20786 transitions. [2024-11-08 18:41:54,525 INFO L78 Accepts]: Start accepts. Automaton has 13531 states and 20786 transitions. Word has length 83 [2024-11-08 18:41:54,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:41:54,526 INFO L471 AbstractCegarLoop]: Abstraction has 13531 states and 20786 transitions. [2024-11-08 18:41:54,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.3) internal successors, (83), 9 states have internal predecessors, (83), 0 states have call successors, (0), 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 18:41:54,526 INFO L276 IsEmpty]: Start isEmpty. Operand 13531 states and 20786 transitions. [2024-11-08 18:41:54,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-08 18:41:54,534 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:41:54,535 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:41:54,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 18:41:54,535 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:41:54,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:41:54,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1599214311, now seen corresponding path program 1 times [2024-11-08 18:41:54,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:41:54,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254693045] [2024-11-08 18:41:54,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:41:54,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:41:54,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:55,116 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 18:41:55,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:41:55,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254693045] [2024-11-08 18:41:55,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254693045] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:41:55,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:41:55,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:41:55,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098928224] [2024-11-08 18:41:55,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:41:55,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:41:55,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:41:55,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:41:55,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:41:55,122 INFO L87 Difference]: Start difference. First operand 13531 states and 20786 transitions. Second operand has 10 states, 10 states have (on average 8.3) internal successors, (83), 9 states have internal predecessors, (83), 0 states have call successors, (0), 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 18:41:56,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:41:56,230 INFO L93 Difference]: Finished difference Result 30281 states and 46211 transitions. [2024-11-08 18:41:56,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 18:41:56,230 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.3) internal successors, (83), 9 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-11-08 18:41:56,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:41:56,276 INFO L225 Difference]: With dead ends: 30281 [2024-11-08 18:41:56,276 INFO L226 Difference]: Without dead ends: 20959 [2024-11-08 18:41:56,289 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-11-08 18:41:56,290 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 1343 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 994 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1343 SdHoareTripleChecker+Valid, 1180 SdHoareTripleChecker+Invalid, 1005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:41:56,291 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1343 Valid, 1180 Invalid, 1005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 994 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 18:41:56,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20959 states. [2024-11-08 18:41:56,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20959 to 13835. [2024-11-08 18:41:56,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13835 states, 13834 states have (on average 1.531227410727194) internal successors, (21183), 13834 states have internal predecessors, (21183), 0 states have call successors, (0), 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 18:41:56,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13835 states to 13835 states and 21183 transitions. [2024-11-08 18:41:56,820 INFO L78 Accepts]: Start accepts. Automaton has 13835 states and 21183 transitions. Word has length 83 [2024-11-08 18:41:56,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:41:56,820 INFO L471 AbstractCegarLoop]: Abstraction has 13835 states and 21183 transitions. [2024-11-08 18:41:56,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.3) internal successors, (83), 9 states have internal predecessors, (83), 0 states have call successors, (0), 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 18:41:56,821 INFO L276 IsEmpty]: Start isEmpty. Operand 13835 states and 21183 transitions. [2024-11-08 18:41:56,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-08 18:41:56,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:41:56,829 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:41:56,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 18:41:56,829 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:41:56,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:41:56,830 INFO L85 PathProgramCache]: Analyzing trace with hash 67573609, now seen corresponding path program 1 times [2024-11-08 18:41:56,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:41:56,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615794252] [2024-11-08 18:41:56,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:41:56,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:41:56,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:57,029 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 18:41:57,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:41:57,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615794252] [2024-11-08 18:41:57,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615794252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:41:57,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:41:57,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:41:57,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282838364] [2024-11-08 18:41:57,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:41:57,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:41:57,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:41:57,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:41:57,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:41:57,036 INFO L87 Difference]: Start difference. First operand 13835 states and 21183 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 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 18:41:57,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:41:57,530 INFO L93 Difference]: Finished difference Result 38547 states and 59132 transitions. [2024-11-08 18:41:57,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:41:57,531 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-11-08 18:41:57,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:41:57,582 INFO L225 Difference]: With dead ends: 38547 [2024-11-08 18:41:57,582 INFO L226 Difference]: Without dead ends: 24775 [2024-11-08 18:41:57,600 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:41:57,601 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 1158 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1158 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:41:57,601 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1158 Valid, 288 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:41:57,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24775 states. [2024-11-08 18:41:58,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24775 to 24773. [2024-11-08 18:41:58,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24773 states, 24772 states have (on average 1.528257710318101) internal successors, (37858), 24772 states have internal predecessors, (37858), 0 states have call successors, (0), 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 18:41:58,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24773 states to 24773 states and 37858 transitions. [2024-11-08 18:41:58,259 INFO L78 Accepts]: Start accepts. Automaton has 24773 states and 37858 transitions. Word has length 83 [2024-11-08 18:41:58,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:41:58,259 INFO L471 AbstractCegarLoop]: Abstraction has 24773 states and 37858 transitions. [2024-11-08 18:41:58,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 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 18:41:58,259 INFO L276 IsEmpty]: Start isEmpty. Operand 24773 states and 37858 transitions. [2024-11-08 18:41:58,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-08 18:41:58,268 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:41:58,268 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:41:58,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 18:41:58,269 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:41:58,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:41:58,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1469957880, now seen corresponding path program 1 times [2024-11-08 18:41:58,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:41:58,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072535390] [2024-11-08 18:41:58,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:41:58,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:41:58,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:58,371 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 18:41:58,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:41:58,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072535390] [2024-11-08 18:41:58,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072535390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:41:58,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:41:58,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:41:58,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883633647] [2024-11-08 18:41:58,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:41:58,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:41:58,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:41:58,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:41:58,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:41:58,375 INFO L87 Difference]: Start difference. First operand 24773 states and 37858 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:41:58,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:41:58,749 INFO L93 Difference]: Finished difference Result 40315 states and 61718 transitions. [2024-11-08 18:41:58,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:41:58,750 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-11-08 18:41:58,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:41:58,817 INFO L225 Difference]: With dead ends: 40315 [2024-11-08 18:41:58,817 INFO L226 Difference]: Without dead ends: 29213 [2024-11-08 18:41:58,897 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 18:41:58,900 INFO L432 NwaCegarLoop]: 309 mSDtfsCounter, 174 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:41:58,904 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 568 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:41:58,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29213 states. [2024-11-08 18:41:59,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29213 to 28943. [2024-11-08 18:41:59,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28943 states, 28942 states have (on average 1.5115057701610117) internal successors, (43746), 28942 states have internal predecessors, (43746), 0 states have call successors, (0), 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 18:41:59,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28943 states to 28943 states and 43746 transitions. [2024-11-08 18:41:59,495 INFO L78 Accepts]: Start accepts. Automaton has 28943 states and 43746 transitions. Word has length 84 [2024-11-08 18:41:59,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:41:59,496 INFO L471 AbstractCegarLoop]: Abstraction has 28943 states and 43746 transitions. [2024-11-08 18:41:59,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:41:59,496 INFO L276 IsEmpty]: Start isEmpty. Operand 28943 states and 43746 transitions. [2024-11-08 18:41:59,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-08 18:41:59,510 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:41:59,510 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:41:59,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 18:41:59,511 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:41:59,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:41:59,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1045499168, now seen corresponding path program 1 times [2024-11-08 18:41:59,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:41:59,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746792001] [2024-11-08 18:41:59,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:41:59,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:41:59,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:00,140 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 18:42:00,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:42:00,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746792001] [2024-11-08 18:42:00,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746792001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:00,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:00,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:42:00,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696793277] [2024-11-08 18:42:00,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:00,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:42:00,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:42:00,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:42:00,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:42:00,144 INFO L87 Difference]: Start difference. First operand 28943 states and 43746 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:00,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:42:00,531 INFO L93 Difference]: Finished difference Result 79451 states and 120132 transitions. [2024-11-08 18:42:00,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:42:00,532 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-11-08 18:42:00,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:42:00,649 INFO L225 Difference]: With dead ends: 79451 [2024-11-08 18:42:00,649 INFO L226 Difference]: Without dead ends: 52457 [2024-11-08 18:42:00,689 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:42:00,693 INFO L432 NwaCegarLoop]: 278 mSDtfsCounter, 190 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:42:00,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 695 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:42:00,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52457 states. [2024-11-08 18:42:01,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52457 to 52119. [2024-11-08 18:42:01,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52119 states, 52118 states have (on average 1.4975632219194903) internal successors, (78050), 52118 states have internal predecessors, (78050), 0 states have call successors, (0), 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 18:42:01,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52119 states to 52119 states and 78050 transitions. [2024-11-08 18:42:01,911 INFO L78 Accepts]: Start accepts. Automaton has 52119 states and 78050 transitions. Word has length 84 [2024-11-08 18:42:01,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:42:01,912 INFO L471 AbstractCegarLoop]: Abstraction has 52119 states and 78050 transitions. [2024-11-08 18:42:01,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:01,912 INFO L276 IsEmpty]: Start isEmpty. Operand 52119 states and 78050 transitions. [2024-11-08 18:42:01,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-08 18:42:01,932 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:42:01,932 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:42:01,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 18:42:01,933 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:42:01,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:01,933 INFO L85 PathProgramCache]: Analyzing trace with hash -720169287, now seen corresponding path program 1 times [2024-11-08 18:42:01,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:42:01,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955942199] [2024-11-08 18:42:01,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:01,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:42:02,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:02,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:42:02,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:42:02,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955942199] [2024-11-08 18:42:02,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955942199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:02,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:02,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:42:02,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642394708] [2024-11-08 18:42:02,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:02,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:42:02,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:42:02,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:42:02,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:42:02,071 INFO L87 Difference]: Start difference. First operand 52119 states and 78050 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:02,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:42:02,691 INFO L93 Difference]: Finished difference Result 119878 states and 179656 transitions. [2024-11-08 18:42:02,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:42:02,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-11-08 18:42:02,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:42:02,870 INFO L225 Difference]: With dead ends: 119878 [2024-11-08 18:42:02,870 INFO L226 Difference]: Without dead ends: 73046 [2024-11-08 18:42:02,891 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 18:42:02,892 INFO L432 NwaCegarLoop]: 279 mSDtfsCounter, 200 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:42:02,893 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 550 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:42:02,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73046 states. [2024-11-08 18:42:03,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73046 to 51761. [2024-11-08 18:42:03,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51761 states, 51760 states have (on average 1.4831723338485316) internal successors, (76769), 51760 states have internal predecessors, (76769), 0 states have call successors, (0), 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 18:42:04,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51761 states to 51761 states and 76769 transitions. [2024-11-08 18:42:04,013 INFO L78 Accepts]: Start accepts. Automaton has 51761 states and 76769 transitions. Word has length 84 [2024-11-08 18:42:04,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:42:04,014 INFO L471 AbstractCegarLoop]: Abstraction has 51761 states and 76769 transitions. [2024-11-08 18:42:04,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:04,014 INFO L276 IsEmpty]: Start isEmpty. Operand 51761 states and 76769 transitions. [2024-11-08 18:42:04,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-08 18:42:04,025 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:42:04,026 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:42:04,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 18:42:04,026 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:42:04,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:04,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1264170607, now seen corresponding path program 1 times [2024-11-08 18:42:04,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:42:04,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961485313] [2024-11-08 18:42:04,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:04,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:42:04,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:04,152 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 18:42:04,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:42:04,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961485313] [2024-11-08 18:42:04,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961485313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:04,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:04,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:42:04,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683676639] [2024-11-08 18:42:04,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:04,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:42:04,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:42:04,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:42:04,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:42:04,158 INFO L87 Difference]: Start difference. First operand 51761 states and 76769 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:04,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:42:04,458 INFO L93 Difference]: Finished difference Result 68036 states and 100649 transitions. [2024-11-08 18:42:04,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:42:04,459 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-11-08 18:42:04,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:42:04,558 INFO L225 Difference]: With dead ends: 68036 [2024-11-08 18:42:04,559 INFO L226 Difference]: Without dead ends: 53030 [2024-11-08 18:42:04,588 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 18:42:04,589 INFO L432 NwaCegarLoop]: 279 mSDtfsCounter, 165 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:42:04,589 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 537 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:42:04,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53030 states. [2024-11-08 18:42:05,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53030 to 48484. [2024-11-08 18:42:05,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48484 states, 48483 states have (on average 1.4609038219582122) internal successors, (70829), 48483 states have internal predecessors, (70829), 0 states have call successors, (0), 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 18:42:05,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48484 states to 48484 states and 70829 transitions. [2024-11-08 18:42:05,641 INFO L78 Accepts]: Start accepts. Automaton has 48484 states and 70829 transitions. Word has length 84 [2024-11-08 18:42:05,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:42:05,642 INFO L471 AbstractCegarLoop]: Abstraction has 48484 states and 70829 transitions. [2024-11-08 18:42:05,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:05,642 INFO L276 IsEmpty]: Start isEmpty. Operand 48484 states and 70829 transitions. [2024-11-08 18:42:05,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-08 18:42:05,651 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:42:05,651 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:42:05,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 18:42:05,652 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:42:05,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:05,653 INFO L85 PathProgramCache]: Analyzing trace with hash 725890361, now seen corresponding path program 1 times [2024-11-08 18:42:05,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:42:05,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059214465] [2024-11-08 18:42:05,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:05,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:42:05,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:05,768 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 18:42:05,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:42:05,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059214465] [2024-11-08 18:42:05,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059214465] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:05,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:05,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:42:05,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469783654] [2024-11-08 18:42:05,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:05,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:42:05,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:42:05,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:42:05,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:42:05,772 INFO L87 Difference]: Start difference. First operand 48484 states and 70829 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:06,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:42:06,525 INFO L93 Difference]: Finished difference Result 91984 states and 134419 transitions. [2024-11-08 18:42:06,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:42:06,526 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-11-08 18:42:06,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:42:06,651 INFO L225 Difference]: With dead ends: 91984 [2024-11-08 18:42:06,651 INFO L226 Difference]: Without dead ends: 57670 [2024-11-08 18:42:06,694 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 18:42:06,695 INFO L432 NwaCegarLoop]: 389 mSDtfsCounter, 179 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:42:06,695 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 644 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:42:06,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57670 states. [2024-11-08 18:42:07,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57670 to 57140. [2024-11-08 18:42:07,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57140 states, 57139 states have (on average 1.4352543796706279) internal successors, (82009), 57139 states have internal predecessors, (82009), 0 states have call successors, (0), 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 18:42:07,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57140 states to 57140 states and 82009 transitions. [2024-11-08 18:42:07,810 INFO L78 Accepts]: Start accepts. Automaton has 57140 states and 82009 transitions. Word has length 84 [2024-11-08 18:42:07,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:42:07,810 INFO L471 AbstractCegarLoop]: Abstraction has 57140 states and 82009 transitions. [2024-11-08 18:42:07,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:07,810 INFO L276 IsEmpty]: Start isEmpty. Operand 57140 states and 82009 transitions. [2024-11-08 18:42:07,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-08 18:42:07,819 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:42:07,819 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:42:07,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 18:42:07,820 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:42:07,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:07,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1100960768, now seen corresponding path program 1 times [2024-11-08 18:42:07,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:42:07,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252708525] [2024-11-08 18:42:07,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:07,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:42:07,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:07,997 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 18:42:07,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:42:07,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252708525] [2024-11-08 18:42:07,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252708525] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:07,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:07,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:42:07,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526915929] [2024-11-08 18:42:07,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:07,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:42:07,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:42:07,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:42:07,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:42:07,999 INFO L87 Difference]: Start difference. First operand 57140 states and 82009 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 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 18:42:08,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:42:08,850 INFO L93 Difference]: Finished difference Result 134558 states and 194631 transitions. [2024-11-08 18:42:08,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:42:08,850 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2024-11-08 18:42:08,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:42:09,004 INFO L225 Difference]: With dead ends: 134558 [2024-11-08 18:42:09,005 INFO L226 Difference]: Without dead ends: 116964 [2024-11-08 18:42:09,040 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:42:09,041 INFO L432 NwaCegarLoop]: 431 mSDtfsCounter, 1668 mSDsluCounter, 1279 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1668 SdHoareTripleChecker+Valid, 1710 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:42:09,041 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1668 Valid, 1710 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:42:09,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116964 states. [2024-11-08 18:42:10,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116964 to 74578. [2024-11-08 18:42:10,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74578 states, 74577 states have (on average 1.4364080078308326) internal successors, (107123), 74577 states have internal predecessors, (107123), 0 states have call successors, (0), 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 18:42:10,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74578 states to 74578 states and 107123 transitions. [2024-11-08 18:42:10,780 INFO L78 Accepts]: Start accepts. Automaton has 74578 states and 107123 transitions. Word has length 85 [2024-11-08 18:42:10,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:42:10,781 INFO L471 AbstractCegarLoop]: Abstraction has 74578 states and 107123 transitions. [2024-11-08 18:42:10,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 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 18:42:10,781 INFO L276 IsEmpty]: Start isEmpty. Operand 74578 states and 107123 transitions. [2024-11-08 18:42:10,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-08 18:42:10,791 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:42:10,791 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:42:10,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 18:42:10,792 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:42:10,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:10,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1574428513, now seen corresponding path program 1 times [2024-11-08 18:42:10,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:42:10,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302538093] [2024-11-08 18:42:10,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:10,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:42:10,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:10,905 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 18:42:10,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:42:10,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302538093] [2024-11-08 18:42:10,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302538093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:10,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:10,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:42:10,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868519167] [2024-11-08 18:42:10,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:10,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:42:10,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:42:10,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:42:10,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:42:10,909 INFO L87 Difference]: Start difference. First operand 74578 states and 107123 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 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 18:42:12,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:42:12,076 INFO L93 Difference]: Finished difference Result 161662 states and 231414 transitions. [2024-11-08 18:42:12,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:42:12,077 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2024-11-08 18:42:12,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:42:12,215 INFO L225 Difference]: With dead ends: 161662 [2024-11-08 18:42:12,216 INFO L226 Difference]: Without dead ends: 92848 [2024-11-08 18:42:12,246 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 18:42:12,246 INFO L432 NwaCegarLoop]: 278 mSDtfsCounter, 190 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:42:12,247 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 532 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:42:12,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92848 states. [2024-11-08 18:42:13,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92848 to 92226. [2024-11-08 18:42:13,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92226 states, 92225 states have (on average 1.404456492274329) internal successors, (129526), 92225 states have internal predecessors, (129526), 0 states have call successors, (0), 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 18:42:13,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92226 states to 92226 states and 129526 transitions. [2024-11-08 18:42:13,825 INFO L78 Accepts]: Start accepts. Automaton has 92226 states and 129526 transitions. Word has length 85 [2024-11-08 18:42:13,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:42:13,826 INFO L471 AbstractCegarLoop]: Abstraction has 92226 states and 129526 transitions. [2024-11-08 18:42:13,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 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 18:42:13,826 INFO L276 IsEmpty]: Start isEmpty. Operand 92226 states and 129526 transitions. [2024-11-08 18:42:13,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-08 18:42:13,833 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:42:13,833 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:42:13,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 18:42:13,833 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:42:13,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:13,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1706591926, now seen corresponding path program 1 times [2024-11-08 18:42:13,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:42:13,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868134482] [2024-11-08 18:42:13,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:13,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:42:13,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:14,012 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 18:42:14,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:42:14,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868134482] [2024-11-08 18:42:14,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868134482] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:14,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:14,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:42:14,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168244322] [2024-11-08 18:42:14,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:14,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:42:14,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:42:14,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:42:14,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:42:14,015 INFO L87 Difference]: Start difference. First operand 92226 states and 129526 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 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 18:42:15,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:42:15,193 INFO L93 Difference]: Finished difference Result 167274 states and 236403 transitions. [2024-11-08 18:42:15,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:42:15,194 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2024-11-08 18:42:15,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:42:15,398 INFO L225 Difference]: With dead ends: 167274 [2024-11-08 18:42:15,398 INFO L226 Difference]: Without dead ends: 160252 [2024-11-08 18:42:15,432 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:42:15,433 INFO L432 NwaCegarLoop]: 407 mSDtfsCounter, 1836 mSDsluCounter, 1147 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1836 SdHoareTripleChecker+Valid, 1554 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:42:15,433 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1836 Valid, 1554 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:42:15,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160252 states. [2024-11-08 18:42:17,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160252 to 99138. [2024-11-08 18:42:17,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99138 states, 99137 states have (on average 1.4048538890626103) internal successors, (139273), 99137 states have internal predecessors, (139273), 0 states have call successors, (0), 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 18:42:17,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99138 states to 99138 states and 139273 transitions. [2024-11-08 18:42:17,836 INFO L78 Accepts]: Start accepts. Automaton has 99138 states and 139273 transitions. Word has length 85 [2024-11-08 18:42:17,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:42:17,836 INFO L471 AbstractCegarLoop]: Abstraction has 99138 states and 139273 transitions. [2024-11-08 18:42:17,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 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 18:42:17,836 INFO L276 IsEmpty]: Start isEmpty. Operand 99138 states and 139273 transitions. [2024-11-08 18:42:17,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-08 18:42:17,842 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:42:17,842 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:42:17,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 18:42:17,843 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:42:17,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:17,843 INFO L85 PathProgramCache]: Analyzing trace with hash 141661972, now seen corresponding path program 1 times [2024-11-08 18:42:17,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:42:17,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106703034] [2024-11-08 18:42:17,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:17,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:42:17,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:18,666 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 18:42:18,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:42:18,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106703034] [2024-11-08 18:42:18,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106703034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:18,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:18,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:42:18,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303171737] [2024-11-08 18:42:18,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:18,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:42:18,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:42:18,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:42:18,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:42:18,669 INFO L87 Difference]: Start difference. First operand 99138 states and 139273 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 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 18:42:19,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:42:19,349 INFO L93 Difference]: Finished difference Result 182682 states and 258234 transitions. [2024-11-08 18:42:19,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:42:19,350 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2024-11-08 18:42:19,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:42:19,626 INFO L225 Difference]: With dead ends: 182682 [2024-11-08 18:42:19,626 INFO L226 Difference]: Without dead ends: 167020 [2024-11-08 18:42:19,670 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:42:19,671 INFO L432 NwaCegarLoop]: 422 mSDtfsCounter, 1624 mSDsluCounter, 1343 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1624 SdHoareTripleChecker+Valid, 1765 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:42:19,671 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1624 Valid, 1765 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:42:19,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167020 states. [2024-11-08 18:42:21,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167020 to 109026. [2024-11-08 18:42:21,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109026 states, 109025 states have (on average 1.4065030956202706) internal successors, (153344), 109025 states have internal predecessors, (153344), 0 states have call successors, (0), 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 18:42:22,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109026 states to 109026 states and 153344 transitions. [2024-11-08 18:42:22,060 INFO L78 Accepts]: Start accepts. Automaton has 109026 states and 153344 transitions. Word has length 85 [2024-11-08 18:42:22,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:42:22,060 INFO L471 AbstractCegarLoop]: Abstraction has 109026 states and 153344 transitions. [2024-11-08 18:42:22,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 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 18:42:22,061 INFO L276 IsEmpty]: Start isEmpty. Operand 109026 states and 153344 transitions. [2024-11-08 18:42:22,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-08 18:42:22,070 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:42:22,070 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:42:22,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 18:42:22,070 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:42:22,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:22,071 INFO L85 PathProgramCache]: Analyzing trace with hash 660725125, now seen corresponding path program 1 times [2024-11-08 18:42:22,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:42:22,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697530381] [2024-11-08 18:42:22,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:22,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:42:22,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:22,340 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 18:42:22,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:42:22,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697530381] [2024-11-08 18:42:22,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697530381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:22,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:22,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:42:22,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071337654] [2024-11-08 18:42:22,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:22,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:42:22,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:42:22,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:42:22,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:42:22,344 INFO L87 Difference]: Start difference. First operand 109026 states and 153344 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 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 18:42:23,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:42:23,334 INFO L93 Difference]: Finished difference Result 220158 states and 311313 transitions. [2024-11-08 18:42:23,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:42:23,335 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2024-11-08 18:42:23,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:42:23,683 INFO L225 Difference]: With dead ends: 220158 [2024-11-08 18:42:23,683 INFO L226 Difference]: Without dead ends: 190624 [2024-11-08 18:42:23,759 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:42:23,759 INFO L432 NwaCegarLoop]: 445 mSDtfsCounter, 1660 mSDsluCounter, 1478 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1660 SdHoareTripleChecker+Valid, 1923 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:42:23,760 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1660 Valid, 1923 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:42:23,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190624 states. [2024-11-08 18:42:26,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190624 to 126168. [2024-11-08 18:42:27,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126168 states, 126167 states have (on average 1.4077769939841638) internal successors, (177615), 126167 states have internal predecessors, (177615), 0 states have call successors, (0), 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 18:42:27,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126168 states to 126168 states and 177615 transitions. [2024-11-08 18:42:27,253 INFO L78 Accepts]: Start accepts. Automaton has 126168 states and 177615 transitions. Word has length 85 [2024-11-08 18:42:27,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:42:27,254 INFO L471 AbstractCegarLoop]: Abstraction has 126168 states and 177615 transitions. [2024-11-08 18:42:27,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 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 18:42:27,254 INFO L276 IsEmpty]: Start isEmpty. Operand 126168 states and 177615 transitions. [2024-11-08 18:42:27,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-08 18:42:27,260 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:42:27,260 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:42:27,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-08 18:42:27,260 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:42:27,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:27,261 INFO L85 PathProgramCache]: Analyzing trace with hash 228228703, now seen corresponding path program 1 times [2024-11-08 18:42:27,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:42:27,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191402280] [2024-11-08 18:42:27,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:27,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:42:27,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:27,437 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 18:42:27,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:42:27,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191402280] [2024-11-08 18:42:27,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191402280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:27,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:27,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:42:27,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609174378] [2024-11-08 18:42:27,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:27,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:42:27,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:42:27,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:42:27,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:42:27,440 INFO L87 Difference]: Start difference. First operand 126168 states and 177615 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 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 18:42:28,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:42:28,933 INFO L93 Difference]: Finished difference Result 253086 states and 357548 transitions. [2024-11-08 18:42:28,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:42:28,933 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2024-11-08 18:42:28,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:42:29,208 INFO L225 Difference]: With dead ends: 253086 [2024-11-08 18:42:29,208 INFO L226 Difference]: Without dead ends: 219824 [2024-11-08 18:42:29,256 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:42:29,256 INFO L432 NwaCegarLoop]: 452 mSDtfsCounter, 1671 mSDsluCounter, 1215 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1671 SdHoareTripleChecker+Valid, 1667 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:42:29,256 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1671 Valid, 1667 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:42:29,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219824 states. [2024-11-08 18:42:32,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219824 to 143296. [2024-11-08 18:42:32,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143296 states, 143295 states have (on average 1.4082417390697513) internal successors, (201794), 143295 states have internal predecessors, (201794), 0 states have call successors, (0), 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 18:42:32,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143296 states to 143296 states and 201794 transitions. [2024-11-08 18:42:32,463 INFO L78 Accepts]: Start accepts. Automaton has 143296 states and 201794 transitions. Word has length 85 [2024-11-08 18:42:32,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:42:32,464 INFO L471 AbstractCegarLoop]: Abstraction has 143296 states and 201794 transitions. [2024-11-08 18:42:32,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 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 18:42:32,464 INFO L276 IsEmpty]: Start isEmpty. Operand 143296 states and 201794 transitions. [2024-11-08 18:42:32,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-08 18:42:32,477 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:42:32,477 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:42:32,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-08 18:42:32,477 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:42:32,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:32,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1015854633, now seen corresponding path program 1 times [2024-11-08 18:42:32,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:42:32,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865693414] [2024-11-08 18:42:32,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:32,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:42:32,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:32,639 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 18:42:32,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:42:32,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865693414] [2024-11-08 18:42:32,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865693414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:32,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:32,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:42:32,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016441603] [2024-11-08 18:42:32,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:32,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:42:32,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:42:32,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:42:32,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:42:32,642 INFO L87 Difference]: Start difference. First operand 143296 states and 201794 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:35,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:42:35,388 INFO L93 Difference]: Finished difference Result 481088 states and 674506 transitions. [2024-11-08 18:42:35,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:42:35,389 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-11-08 18:42:35,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:42:36,336 INFO L225 Difference]: With dead ends: 481088 [2024-11-08 18:42:36,336 INFO L226 Difference]: Without dead ends: 412642 [2024-11-08 18:42:36,512 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:42:36,513 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 1962 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1962 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:42:36,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1962 Valid, 555 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 18:42:36,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412642 states.