./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.5.1.ufo.BOUNDED-10.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a 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_64a98871-066b-4e63-bd91-552bdb14ef63/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a98871-066b-4e63-bd91-552bdb14ef63/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a98871-066b-4e63-bd91-552bdb14ef63/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a98871-066b-4e63-bd91-552bdb14ef63/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.5.1.ufo.BOUNDED-10.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a98871-066b-4e63-bd91-552bdb14ef63/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a98871-066b-4e63-bd91-552bdb14ef63/bin/uautomizer-verify-4GaUIPS5ZU --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 b6fdb2b1846dcedb57e8d072ea261769567fc55001417142c985abb5c6635687 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:06:36,202 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:06:36,297 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a98871-066b-4e63-bd91-552bdb14ef63/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 22:06:36,307 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:06:36,307 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:06:36,348 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:06:36,349 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:06:36,349 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:06:36,350 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:06:36,351 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:06:36,363 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:06:36,363 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:06:36,364 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:06:36,364 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:06:36,365 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:06:36,365 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:06:36,366 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:06:36,366 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:06:36,367 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:06:36,367 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:06:36,368 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:06:36,368 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:06:36,369 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:06:36,369 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:06:36,369 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:06:36,370 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:06:36,370 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:06:36,371 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:06:36,371 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:06:36,372 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:06:36,372 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:06:36,372 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:06:36,373 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:06:36,373 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:06:36,374 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:06:36,374 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:06:36,374 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:06:36,375 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:06:36,375 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:06:36,375 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:06:36,376 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:06:36,376 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:06:36,377 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_64a98871-066b-4e63-bd91-552bdb14ef63/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a98871-066b-4e63-bd91-552bdb14ef63/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6fdb2b1846dcedb57e8d072ea261769567fc55001417142c985abb5c6635687 [2024-10-31 22:06:36,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:06:36,734 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:06:36,737 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:06:36,738 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:06:36,739 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:06:36,740 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a98871-066b-4e63-bd91-552bdb14ef63/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.5.1.ufo.BOUNDED-10.pals.c Unable to find full path for "g++" [2024-10-31 22:06:38,884 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:06:39,256 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:06:39,259 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a98871-066b-4e63-bd91-552bdb14ef63/sv-benchmarks/c/seq-mthreaded/pals_floodmax.5.1.ufo.BOUNDED-10.pals.c [2024-10-31 22:06:39,287 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a98871-066b-4e63-bd91-552bdb14ef63/bin/uautomizer-verify-4GaUIPS5ZU/data/6531be01e/550a2f9788b544c0be067b2de0a4eda7/FLAGccf47a610 [2024-10-31 22:06:39,342 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a98871-066b-4e63-bd91-552bdb14ef63/bin/uautomizer-verify-4GaUIPS5ZU/data/6531be01e/550a2f9788b544c0be067b2de0a4eda7 [2024-10-31 22:06:39,345 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:06:39,346 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:06:39,349 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:06:39,351 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:06:39,357 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:06:39,358 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:06:39" (1/1) ... [2024-10-31 22:06:39,359 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a71f358 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:39, skipping insertion in model container [2024-10-31 22:06:39,359 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:06:39" (1/1) ... [2024-10-31 22:06:39,455 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:06:40,011 WARN L251 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_64a98871-066b-4e63-bd91-552bdb14ef63/sv-benchmarks/c/seq-mthreaded/pals_floodmax.5.1.ufo.BOUNDED-10.pals.c[52017,52030] [2024-10-31 22:06:40,015 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:06:40,029 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:06:40,198 WARN L251 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_64a98871-066b-4e63-bd91-552bdb14ef63/sv-benchmarks/c/seq-mthreaded/pals_floodmax.5.1.ufo.BOUNDED-10.pals.c[52017,52030] [2024-10-31 22:06:40,199 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:06:40,220 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:06:40,220 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:40 WrapperNode [2024-10-31 22:06:40,221 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:06:40,222 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:06:40,222 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:06:40,222 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:06:40,230 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:40" (1/1) ... [2024-10-31 22:06:40,262 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:40" (1/1) ... [2024-10-31 22:06:40,357 INFO L138 Inliner]: procedures = 24, calls = 16, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 2010 [2024-10-31 22:06:40,358 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:06:40,359 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:06:40,359 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:06:40,359 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:06:40,372 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:40" (1/1) ... [2024-10-31 22:06:40,372 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:40" (1/1) ... [2024-10-31 22:06:40,384 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:40" (1/1) ... [2024-10-31 22:06:40,415 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]. [2024-10-31 22:06:40,416 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:40" (1/1) ... [2024-10-31 22:06:40,416 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:40" (1/1) ... [2024-10-31 22:06:40,465 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:40" (1/1) ... [2024-10-31 22:06:40,503 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:40" (1/1) ... [2024-10-31 22:06:40,513 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:40" (1/1) ... [2024-10-31 22:06:40,523 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:40" (1/1) ... [2024-10-31 22:06:40,569 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:06:40,570 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:06:40,570 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:06:40,570 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:06:40,573 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:40" (1/1) ... [2024-10-31 22:06:40,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:06:40,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a98871-066b-4e63-bd91-552bdb14ef63/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:40,618 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a98871-066b-4e63-bd91-552bdb14ef63/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:06:40,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a98871-066b-4e63-bd91-552bdb14ef63/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:06:40,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:06:40,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:06:40,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:06:40,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:06:40,928 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:06:40,930 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:06:43,477 INFO L? ?]: Removed 215 outVars from TransFormulas that were not future-live. [2024-10-31 22:06:43,477 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:06:43,516 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:06:43,516 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 22:06:43,516 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:06:43 BoogieIcfgContainer [2024-10-31 22:06:43,517 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:06:43,523 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:06:43,523 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:06:43,528 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:06:43,528 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:06:39" (1/3) ... [2024-10-31 22:06:43,530 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42de0da9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:06:43, skipping insertion in model container [2024-10-31 22:06:43,530 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:40" (2/3) ... [2024-10-31 22:06:43,530 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42de0da9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:06:43, skipping insertion in model container [2024-10-31 22:06:43,531 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:06:43" (3/3) ... [2024-10-31 22:06:43,532 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.5.1.ufo.BOUNDED-10.pals.c [2024-10-31 22:06:43,551 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:06:43,551 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 22:06:43,698 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:06:43,708 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;@eaec8ca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:06:43,709 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 22:06:43,721 INFO L276 IsEmpty]: Start isEmpty. Operand has 646 states, 644 states have (on average 1.8680124223602483) internal successors, (1203), 645 states have internal predecessors, (1203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:43,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-31 22:06:43,760 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:06:43,765 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:43,765 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:06:43,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:43,773 INFO L85 PathProgramCache]: Analyzing trace with hash -859816078, now seen corresponding path program 1 times [2024-10-31 22:06:43,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:43,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036435088] [2024-10-31 22:06:43,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:43,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:44,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:44,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:44,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:44,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036435088] [2024-10-31 22:06:44,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036435088] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:44,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:44,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:06:44,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885036558] [2024-10-31 22:06:44,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:44,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:06:44,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:44,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:06:44,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:06:44,629 INFO L87 Difference]: Start difference. First operand has 646 states, 644 states have (on average 1.8680124223602483) internal successors, (1203), 645 states have internal predecessors, (1203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:44,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:06:44,696 INFO L93 Difference]: Finished difference Result 767 states and 1420 transitions. [2024-10-31 22:06:44,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:06:44,699 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 0 states have call successors, (0), 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 153 [2024-10-31 22:06:44,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:06:44,715 INFO L225 Difference]: With dead ends: 767 [2024-10-31 22:06:44,715 INFO L226 Difference]: Without dead ends: 642 [2024-10-31 22:06:44,722 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:06:44,727 INFO L432 NwaCegarLoop]: 1200 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1200 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:06:44,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1200 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:06:44,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2024-10-31 22:06:44,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 642. [2024-10-31 22:06:44,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 641 states have (on average 1.8658346333853355) internal successors, (1196), 641 states have internal predecessors, (1196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:44,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 1196 transitions. [2024-10-31 22:06:44,835 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 1196 transitions. Word has length 153 [2024-10-31 22:06:44,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:06:44,836 INFO L471 AbstractCegarLoop]: Abstraction has 642 states and 1196 transitions. [2024-10-31 22:06:44,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:44,836 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 1196 transitions. [2024-10-31 22:06:44,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-31 22:06:44,842 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:06:44,843 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:44,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:06:44,843 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:06:44,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:44,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1369289168, now seen corresponding path program 1 times [2024-10-31 22:06:44,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:44,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634191491] [2024-10-31 22:06:44,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:44,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:44,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:45,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:45,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:45,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634191491] [2024-10-31 22:06:45,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634191491] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:45,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:45,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:06:45,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792696525] [2024-10-31 22:06:45,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:45,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:06:45,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:45,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:06:45,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:06:45,585 INFO L87 Difference]: Start difference. First operand 642 states and 1196 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:45,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:06:45,887 INFO L93 Difference]: Finished difference Result 762 states and 1410 transitions. [2024-10-31 22:06:45,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:06:45,888 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 states have internal predecessors, (153), 0 states have call successors, (0), 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 153 [2024-10-31 22:06:45,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:06:45,899 INFO L225 Difference]: With dead ends: 762 [2024-10-31 22:06:45,899 INFO L226 Difference]: Without dead ends: 642 [2024-10-31 22:06:45,900 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:06:45,901 INFO L432 NwaCegarLoop]: 1194 mSDtfsCounter, 0 mSDsluCounter, 3537 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4731 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:06:45,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4731 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:06:45,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2024-10-31 22:06:45,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 642. [2024-10-31 22:06:45,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 641 states have (on average 1.8034321372854913) internal successors, (1156), 641 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:45,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 1156 transitions. [2024-10-31 22:06:45,952 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 1156 transitions. Word has length 153 [2024-10-31 22:06:45,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:06:45,953 INFO L471 AbstractCegarLoop]: Abstraction has 642 states and 1156 transitions. [2024-10-31 22:06:45,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:45,953 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 1156 transitions. [2024-10-31 22:06:45,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-10-31 22:06:45,965 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:06:45,966 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:45,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:06:45,966 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:06:45,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:45,967 INFO L85 PathProgramCache]: Analyzing trace with hash 371533137, now seen corresponding path program 1 times [2024-10-31 22:06:45,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:45,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659277720] [2024-10-31 22:06:45,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:45,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:46,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:46,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:46,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:46,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659277720] [2024-10-31 22:06:46,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659277720] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:46,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:46,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:06:46,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179478273] [2024-10-31 22:06:46,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:46,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:46,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:46,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:46,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:46,464 INFO L87 Difference]: Start difference. First operand 642 states and 1156 transitions. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:46,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:06:46,593 INFO L93 Difference]: Finished difference Result 861 states and 1551 transitions. [2024-10-31 22:06:46,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:46,594 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 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 192 [2024-10-31 22:06:46,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:06:46,601 INFO L225 Difference]: With dead ends: 861 [2024-10-31 22:06:46,601 INFO L226 Difference]: Without dead ends: 745 [2024-10-31 22:06:46,602 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 [2024-10-31 22:06:46,605 INFO L432 NwaCegarLoop]: 1317 mSDtfsCounter, 177 mSDsluCounter, 1112 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 2429 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:06:46,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 2429 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:06:46,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2024-10-31 22:06:46,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 743. [2024-10-31 22:06:46,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 743 states, 742 states have (on average 1.7991913746630728) internal successors, (1335), 742 states have internal predecessors, (1335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:46,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 1335 transitions. [2024-10-31 22:06:46,642 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 1335 transitions. Word has length 192 [2024-10-31 22:06:46,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:06:46,644 INFO L471 AbstractCegarLoop]: Abstraction has 743 states and 1335 transitions. [2024-10-31 22:06:46,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:46,645 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 1335 transitions. [2024-10-31 22:06:46,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-10-31 22:06:46,652 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:06:46,653 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:46,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:06:46,653 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:06:46,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:46,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1787964362, now seen corresponding path program 1 times [2024-10-31 22:06:46,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:46,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118904954] [2024-10-31 22:06:46,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:46,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:46,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:46,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:46,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:46,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118904954] [2024-10-31 22:06:46,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118904954] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:46,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:46,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:06:46,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102387159] [2024-10-31 22:06:46,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:46,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:46,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:46,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:46,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:46,979 INFO L87 Difference]: Start difference. First operand 743 states and 1335 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:47,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:06:47,065 INFO L93 Difference]: Finished difference Result 960 states and 1726 transitions. [2024-10-31 22:06:47,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:47,066 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 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 196 [2024-10-31 22:06:47,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:06:47,070 INFO L225 Difference]: With dead ends: 960 [2024-10-31 22:06:47,071 INFO L226 Difference]: Without dead ends: 844 [2024-10-31 22:06:47,072 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 [2024-10-31 22:06:47,073 INFO L432 NwaCegarLoop]: 1322 mSDtfsCounter, 186 mSDsluCounter, 1131 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 2453 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:06:47,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 2453 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:06:47,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2024-10-31 22:06:47,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 842. [2024-10-31 22:06:47,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 841 states have (on average 1.7990487514863258) internal successors, (1513), 841 states have internal predecessors, (1513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:47,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1513 transitions. [2024-10-31 22:06:47,106 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1513 transitions. Word has length 196 [2024-10-31 22:06:47,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:06:47,107 INFO L471 AbstractCegarLoop]: Abstraction has 842 states and 1513 transitions. [2024-10-31 22:06:47,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:47,108 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1513 transitions. [2024-10-31 22:06:47,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-10-31 22:06:47,111 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:06:47,111 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:47,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:06:47,112 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:06:47,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:47,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1750820769, now seen corresponding path program 1 times [2024-10-31 22:06:47,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:47,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419171719] [2024-10-31 22:06:47,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:47,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:47,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:47,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:47,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:47,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419171719] [2024-10-31 22:06:47,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419171719] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:47,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:47,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:06:47,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379592749] [2024-10-31 22:06:47,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:47,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:47,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:47,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:47,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:47,467 INFO L87 Difference]: Start difference. First operand 842 states and 1513 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:47,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:06:47,734 INFO L93 Difference]: Finished difference Result 1437 states and 2580 transitions. [2024-10-31 22:06:47,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:47,735 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 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 196 [2024-10-31 22:06:47,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:06:47,740 INFO L225 Difference]: With dead ends: 1437 [2024-10-31 22:06:47,740 INFO L226 Difference]: Without dead ends: 1123 [2024-10-31 22:06:47,742 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 [2024-10-31 22:06:47,744 INFO L432 NwaCegarLoop]: 1163 mSDtfsCounter, 177 mSDsluCounter, 1121 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 2284 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:06:47,746 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 2284 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:06:47,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1123 states. [2024-10-31 22:06:47,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1123 to 1121. [2024-10-31 22:06:47,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1121 states, 1120 states have (on average 1.7955357142857142) internal successors, (2011), 1120 states have internal predecessors, (2011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:47,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1121 states to 1121 states and 2011 transitions. [2024-10-31 22:06:47,779 INFO L78 Accepts]: Start accepts. Automaton has 1121 states and 2011 transitions. Word has length 196 [2024-10-31 22:06:47,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:06:47,781 INFO L471 AbstractCegarLoop]: Abstraction has 1121 states and 2011 transitions. [2024-10-31 22:06:47,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:47,782 INFO L276 IsEmpty]: Start isEmpty. Operand 1121 states and 2011 transitions. [2024-10-31 22:06:47,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-10-31 22:06:47,785 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:06:47,786 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:47,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:06:47,787 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:06:47,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:47,788 INFO L85 PathProgramCache]: Analyzing trace with hash 212363179, now seen corresponding path program 1 times [2024-10-31 22:06:47,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:47,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124732635] [2024-10-31 22:06:47,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:47,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:47,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:48,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:48,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:48,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124732635] [2024-10-31 22:06:48,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124732635] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:48,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:48,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:06:48,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843809898] [2024-10-31 22:06:48,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:48,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:48,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:48,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:48,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:48,250 INFO L87 Difference]: Start difference. First operand 1121 states and 2011 transitions. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:48,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:06:48,334 INFO L93 Difference]: Finished difference Result 2241 states and 4011 transitions. [2024-10-31 22:06:48,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:48,335 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 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 200 [2024-10-31 22:06:48,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:06:48,342 INFO L225 Difference]: With dead ends: 2241 [2024-10-31 22:06:48,342 INFO L226 Difference]: Without dead ends: 1648 [2024-10-31 22:06:48,344 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 [2024-10-31 22:06:48,346 INFO L432 NwaCegarLoop]: 1163 mSDtfsCounter, 169 mSDsluCounter, 1122 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 2285 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:06:48,348 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 2285 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:06:48,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1648 states. [2024-10-31 22:06:48,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1648 to 1646. [2024-10-31 22:06:48,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1646 states, 1645 states have (on average 1.7878419452887537) internal successors, (2941), 1645 states have internal predecessors, (2941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:48,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1646 states to 1646 states and 2941 transitions. [2024-10-31 22:06:48,396 INFO L78 Accepts]: Start accepts. Automaton has 1646 states and 2941 transitions. Word has length 200 [2024-10-31 22:06:48,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:06:48,397 INFO L471 AbstractCegarLoop]: Abstraction has 1646 states and 2941 transitions. [2024-10-31 22:06:48,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:48,400 INFO L276 IsEmpty]: Start isEmpty. Operand 1646 states and 2941 transitions. [2024-10-31 22:06:48,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-10-31 22:06:48,403 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:06:48,404 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:48,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:06:48,404 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:06:48,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:48,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1151855241, now seen corresponding path program 1 times [2024-10-31 22:06:48,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:48,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108923748] [2024-10-31 22:06:48,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:48,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:48,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:48,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:48,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:48,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108923748] [2024-10-31 22:06:48,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108923748] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:48,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:48,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:06:48,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589017872] [2024-10-31 22:06:48,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:48,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:48,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:48,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:48,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:48,962 INFO L87 Difference]: Start difference. First operand 1646 states and 2941 transitions. Second operand has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:49,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:06:49,052 INFO L93 Difference]: Finished difference Result 3750 states and 6675 transitions. [2024-10-31 22:06:49,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:49,052 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 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 204 [2024-10-31 22:06:49,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:06:49,062 INFO L225 Difference]: With dead ends: 3750 [2024-10-31 22:06:49,062 INFO L226 Difference]: Without dead ends: 2632 [2024-10-31 22:06:49,064 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:49,067 INFO L432 NwaCegarLoop]: 1163 mSDtfsCounter, 161 mSDsluCounter, 1123 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 2286 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:06:49,067 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 2286 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:06:49,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2632 states. [2024-10-31 22:06:49,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2632 to 2630. [2024-10-31 22:06:49,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2630 states, 2629 states have (on average 1.7759604412324077) internal successors, (4669), 2629 states have internal predecessors, (4669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:49,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2630 states to 2630 states and 4669 transitions. [2024-10-31 22:06:49,141 INFO L78 Accepts]: Start accepts. Automaton has 2630 states and 4669 transitions. Word has length 204 [2024-10-31 22:06:49,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:06:49,141 INFO L471 AbstractCegarLoop]: Abstraction has 2630 states and 4669 transitions. [2024-10-31 22:06:49,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:49,142 INFO L276 IsEmpty]: Start isEmpty. Operand 2630 states and 4669 transitions. [2024-10-31 22:06:49,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-10-31 22:06:49,146 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:06:49,146 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:49,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:06:49,147 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:06:49,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:49,147 INFO L85 PathProgramCache]: Analyzing trace with hash -14459003, now seen corresponding path program 1 times [2024-10-31 22:06:49,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:49,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816661345] [2024-10-31 22:06:49,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:49,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:49,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:49,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:49,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:49,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816661345] [2024-10-31 22:06:49,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816661345] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:49,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:49,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:06:49,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779224589] [2024-10-31 22:06:49,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:49,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:49,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:49,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:49,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:49,565 INFO L87 Difference]: Start difference. First operand 2630 states and 4669 transitions. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:49,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:06:49,815 INFO L93 Difference]: Finished difference Result 6570 states and 11607 transitions. [2024-10-31 22:06:49,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:49,816 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 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 208 [2024-10-31 22:06:49,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:06:49,832 INFO L225 Difference]: With dead ends: 6570 [2024-10-31 22:06:49,832 INFO L226 Difference]: Without dead ends: 4468 [2024-10-31 22:06:49,835 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 [2024-10-31 22:06:49,836 INFO L432 NwaCegarLoop]: 1215 mSDtfsCounter, 153 mSDsluCounter, 1124 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 2339 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:06:49,837 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 2339 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:06:49,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4468 states. [2024-10-31 22:06:49,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4468 to 4466. [2024-10-31 22:06:49,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4466 states, 4465 states have (on average 1.760582306830907) internal successors, (7861), 4465 states have internal predecessors, (7861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:49,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4466 states to 4466 states and 7861 transitions. [2024-10-31 22:06:49,959 INFO L78 Accepts]: Start accepts. Automaton has 4466 states and 7861 transitions. Word has length 208 [2024-10-31 22:06:49,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:06:49,959 INFO L471 AbstractCegarLoop]: Abstraction has 4466 states and 7861 transitions. [2024-10-31 22:06:49,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:49,960 INFO L276 IsEmpty]: Start isEmpty. Operand 4466 states and 7861 transitions. [2024-10-31 22:06:49,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-10-31 22:06:49,964 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:06:49,964 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:49,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:06:49,964 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:06:49,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:49,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1535059458, now seen corresponding path program 1 times [2024-10-31 22:06:49,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:49,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318733427] [2024-10-31 22:06:49,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:49,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:50,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:50,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:50,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:50,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318733427] [2024-10-31 22:06:50,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318733427] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:50,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:50,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:06:50,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942927096] [2024-10-31 22:06:50,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:50,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:50,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:50,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:50,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:50,305 INFO L87 Difference]: Start difference. First operand 4466 states and 7861 transitions. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:50,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:06:50,563 INFO L93 Difference]: Finished difference Result 8417 states and 14807 transitions. [2024-10-31 22:06:50,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:50,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 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 212 [2024-10-31 22:06:50,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:06:50,586 INFO L225 Difference]: With dead ends: 8417 [2024-10-31 22:06:50,586 INFO L226 Difference]: Without dead ends: 6315 [2024-10-31 22:06:50,590 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 [2024-10-31 22:06:50,591 INFO L432 NwaCegarLoop]: 1207 mSDtfsCounter, 154 mSDsluCounter, 1135 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 2342 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:06:50,593 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 2342 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:06:50,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6315 states. [2024-10-31 22:06:50,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6315 to 6313. [2024-10-31 22:06:50,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6313 states, 6312 states have (on average 1.751108998732573) internal successors, (11053), 6312 states have internal predecessors, (11053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:50,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6313 states to 6313 states and 11053 transitions. [2024-10-31 22:06:50,784 INFO L78 Accepts]: Start accepts. Automaton has 6313 states and 11053 transitions. Word has length 212 [2024-10-31 22:06:50,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:06:50,785 INFO L471 AbstractCegarLoop]: Abstraction has 6313 states and 11053 transitions. [2024-10-31 22:06:50,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:50,785 INFO L276 IsEmpty]: Start isEmpty. Operand 6313 states and 11053 transitions. [2024-10-31 22:06:50,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-10-31 22:06:50,789 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:06:50,789 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:50,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:06:50,790 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:06:50,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:50,794 INFO L85 PathProgramCache]: Analyzing trace with hash -907997037, now seen corresponding path program 1 times [2024-10-31 22:06:50,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:50,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781106665] [2024-10-31 22:06:50,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:50,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:50,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:51,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:51,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:51,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781106665] [2024-10-31 22:06:51,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781106665] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:51,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:51,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-31 22:06:51,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695719449] [2024-10-31 22:06:51,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:51,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:06:51,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:51,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:06:51,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:06:51,400 INFO L87 Difference]: Start difference. First operand 6313 states and 11053 transitions. Second operand has 7 states, 7 states have (on average 30.285714285714285) internal successors, (212), 7 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:52,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:06:52,327 INFO L93 Difference]: Finished difference Result 41391 states and 72940 transitions. [2024-10-31 22:06:52,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-31 22:06:52,331 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 30.285714285714285) internal successors, (212), 7 states have internal predecessors, (212), 0 states have call successors, (0), 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 212 [2024-10-31 22:06:52,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:06:52,449 INFO L225 Difference]: With dead ends: 41391 [2024-10-31 22:06:52,449 INFO L226 Difference]: Without dead ends: 35761 [2024-10-31 22:06:52,464 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-10-31 22:06:52,465 INFO L432 NwaCegarLoop]: 1177 mSDtfsCounter, 2722 mSDsluCounter, 7040 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2722 SdHoareTripleChecker+Valid, 8217 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 22:06:52,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2722 Valid, 8217 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 22:06:52,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35761 states. [2024-10-31 22:06:53,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35761 to 11885. [2024-10-31 22:06:53,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11885 states, 11884 states have (on average 1.743520700100976) internal successors, (20720), 11884 states have internal predecessors, (20720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:53,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11885 states to 11885 states and 20720 transitions. [2024-10-31 22:06:53,190 INFO L78 Accepts]: Start accepts. Automaton has 11885 states and 20720 transitions. Word has length 212 [2024-10-31 22:06:53,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:06:53,191 INFO L471 AbstractCegarLoop]: Abstraction has 11885 states and 20720 transitions. [2024-10-31 22:06:53,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 30.285714285714285) internal successors, (212), 7 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:53,192 INFO L276 IsEmpty]: Start isEmpty. Operand 11885 states and 20720 transitions. [2024-10-31 22:06:53,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-10-31 22:06:53,198 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:06:53,198 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:53,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:06:53,199 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:06:53,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:53,200 INFO L85 PathProgramCache]: Analyzing trace with hash -349516764, now seen corresponding path program 1 times [2024-10-31 22:06:53,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:53,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497047358] [2024-10-31 22:06:53,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:53,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:53,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:53,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:53,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:53,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497047358] [2024-10-31 22:06:53,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497047358] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:53,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:53,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:06:53,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856164006] [2024-10-31 22:06:53,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:53,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:06:53,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:53,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:06:53,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:06:53,657 INFO L87 Difference]: Start difference. First operand 11885 states and 20720 transitions. Second operand has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:54,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:06:54,215 INFO L93 Difference]: Finished difference Result 38048 states and 66571 transitions. [2024-10-31 22:06:54,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:06:54,216 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 0 states have call successors, (0), 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 213 [2024-10-31 22:06:54,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:06:54,272 INFO L225 Difference]: With dead ends: 38048 [2024-10-31 22:06:54,273 INFO L226 Difference]: Without dead ends: 26939 [2024-10-31 22:06:54,287 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:06:54,288 INFO L432 NwaCegarLoop]: 1145 mSDtfsCounter, 596 mSDsluCounter, 2447 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 3592 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:06:54,288 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [596 Valid, 3592 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:06:54,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26939 states. [2024-10-31 22:06:54,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26939 to 19363. [2024-10-31 22:06:54,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19363 states, 19362 states have (on average 1.7421753951038117) internal successors, (33732), 19362 states have internal predecessors, (33732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:54,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19363 states to 19363 states and 33732 transitions. [2024-10-31 22:06:54,999 INFO L78 Accepts]: Start accepts. Automaton has 19363 states and 33732 transitions. Word has length 213 [2024-10-31 22:06:55,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:06:55,000 INFO L471 AbstractCegarLoop]: Abstraction has 19363 states and 33732 transitions. [2024-10-31 22:06:55,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:55,000 INFO L276 IsEmpty]: Start isEmpty. Operand 19363 states and 33732 transitions. [2024-10-31 22:06:55,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-10-31 22:06:55,004 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:06:55,004 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:55,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 22:06:55,005 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:06:55,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:55,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1149380166, now seen corresponding path program 1 times [2024-10-31 22:06:55,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:55,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656345983] [2024-10-31 22:06:55,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:55,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:55,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:55,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:55,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:55,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656345983] [2024-10-31 22:06:55,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656345983] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:55,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:55,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:06:55,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336875996] [2024-10-31 22:06:55,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:55,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:55,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:55,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:55,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:55,273 INFO L87 Difference]: Start difference. First operand 19363 states and 33732 transitions. Second operand has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:55,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:06:55,883 INFO L93 Difference]: Finished difference Result 37407 states and 65190 transitions. [2024-10-31 22:06:55,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:55,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 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 213 [2024-10-31 22:06:55,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:06:55,945 INFO L225 Difference]: With dead ends: 37407 [2024-10-31 22:06:55,945 INFO L226 Difference]: Without dead ends: 27271 [2024-10-31 22:06:55,959 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 [2024-10-31 22:06:55,959 INFO L432 NwaCegarLoop]: 1250 mSDtfsCounter, 162 mSDsluCounter, 1134 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 2384 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:06:55,960 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 2384 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:06:55,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27271 states. [2024-10-31 22:06:56,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27271 to 27269. [2024-10-31 22:06:56,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27269 states, 27268 states have (on average 1.7327636790377) internal successors, (47249), 27268 states have internal predecessors, (47249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:56,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27269 states to 27269 states and 47249 transitions. [2024-10-31 22:06:56,883 INFO L78 Accepts]: Start accepts. Automaton has 27269 states and 47249 transitions. Word has length 213 [2024-10-31 22:06:56,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:06:56,884 INFO L471 AbstractCegarLoop]: Abstraction has 27269 states and 47249 transitions. [2024-10-31 22:06:56,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:56,885 INFO L276 IsEmpty]: Start isEmpty. Operand 27269 states and 47249 transitions. [2024-10-31 22:06:56,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-10-31 22:06:56,890 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:06:56,890 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:56,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-31 22:06:56,891 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:06:56,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:56,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1700858888, now seen corresponding path program 1 times [2024-10-31 22:06:56,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:56,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534681865] [2024-10-31 22:06:56,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:56,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:57,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:57,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:57,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:57,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534681865] [2024-10-31 22:06:57,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534681865] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:57,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:57,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:06:57,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727869872] [2024-10-31 22:06:57,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:57,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:57,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:57,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:57,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:57,264 INFO L87 Difference]: Start difference. First operand 27269 states and 47249 transitions. Second operand has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:58,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:06:58,169 INFO L93 Difference]: Finished difference Result 52953 states and 91795 transitions. [2024-10-31 22:06:58,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:58,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 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 213 [2024-10-31 22:06:58,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:06:58,406 INFO L225 Difference]: With dead ends: 52953 [2024-10-31 22:06:58,406 INFO L226 Difference]: Without dead ends: 38507 [2024-10-31 22:06:58,429 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 [2024-10-31 22:06:58,430 INFO L432 NwaCegarLoop]: 1284 mSDtfsCounter, 170 mSDsluCounter, 1133 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 2417 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 22:06:58,431 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 2417 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 22:06:58,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38507 states. [2024-10-31 22:06:59,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38507 to 38505. [2024-10-31 22:06:59,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38505 states, 38504 states have (on average 1.7228859339289424) internal successors, (66338), 38504 states have internal predecessors, (66338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:59,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38505 states to 38505 states and 66338 transitions. [2024-10-31 22:06:59,439 INFO L78 Accepts]: Start accepts. Automaton has 38505 states and 66338 transitions. Word has length 213 [2024-10-31 22:06:59,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:06:59,440 INFO L471 AbstractCegarLoop]: Abstraction has 38505 states and 66338 transitions. [2024-10-31 22:06:59,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:59,440 INFO L276 IsEmpty]: Start isEmpty. Operand 38505 states and 66338 transitions. [2024-10-31 22:06:59,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-10-31 22:06:59,443 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:06:59,443 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:59,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-31 22:06:59,444 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:06:59,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:59,445 INFO L85 PathProgramCache]: Analyzing trace with hash -895875468, now seen corresponding path program 1 times [2024-10-31 22:06:59,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:59,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178426305] [2024-10-31 22:06:59,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:59,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:59,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:59,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:59,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:59,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178426305] [2024-10-31 22:06:59,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178426305] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:59,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:59,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:06:59,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607670714] [2024-10-31 22:06:59,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:59,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:59,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:59,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:59,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:59,961 INFO L87 Difference]: Start difference. First operand 38505 states and 66338 transitions. Second operand has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:01,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:07:01,063 INFO L93 Difference]: Finished difference Result 74959 states and 129196 transitions. [2024-10-31 22:07:01,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:07:01,064 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 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 213 [2024-10-31 22:07:01,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:07:01,193 INFO L225 Difference]: With dead ends: 74959 [2024-10-31 22:07:01,194 INFO L226 Difference]: Without dead ends: 54389 [2024-10-31 22:07:01,215 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 [2024-10-31 22:07:01,216 INFO L432 NwaCegarLoop]: 1318 mSDtfsCounter, 178 mSDsluCounter, 1132 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 2450 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:07:01,216 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 2450 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:07:01,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54389 states. [2024-10-31 22:07:02,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54389 to 54387. [2024-10-31 22:07:02,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54387 states, 54386 states have (on average 1.7118559923509726) internal successors, (93101), 54386 states have internal predecessors, (93101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:02,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54387 states to 54387 states and 93101 transitions. [2024-10-31 22:07:02,881 INFO L78 Accepts]: Start accepts. Automaton has 54387 states and 93101 transitions. Word has length 213 [2024-10-31 22:07:02,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:07:02,881 INFO L471 AbstractCegarLoop]: Abstraction has 54387 states and 93101 transitions. [2024-10-31 22:07:02,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:02,882 INFO L276 IsEmpty]: Start isEmpty. Operand 54387 states and 93101 transitions. [2024-10-31 22:07:02,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-10-31 22:07:02,885 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:07:02,885 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:02,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-31 22:07:02,886 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:07:02,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:02,886 INFO L85 PathProgramCache]: Analyzing trace with hash -47493142, now seen corresponding path program 1 times [2024-10-31 22:07:02,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:02,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337138226] [2024-10-31 22:07:02,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:02,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:02,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:03,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:03,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:03,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337138226] [2024-10-31 22:07:03,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337138226] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:03,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:03,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:07:03,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233532521] [2024-10-31 22:07:03,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:03,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:07:03,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:03,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:07:03,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:07:03,433 INFO L87 Difference]: Start difference. First operand 54387 states and 93101 transitions. Second operand has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)