./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6110631-4df8-4aa4-8410-3531460375b2/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6110631-4df8-4aa4-8410-3531460375b2/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6110631-4df8-4aa4-8410-3531460375b2/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6110631-4df8-4aa4-8410-3531460375b2/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6110631-4df8-4aa4-8410-3531460375b2/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6110631-4df8-4aa4-8410-3531460375b2/bin/uautomizer-verify-84ZbGMXZE1 --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 ed8936a2abd022df2df7ae7f4cc5a13ffa2d4ca9f4dc64b188ddb89053a00421 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 06:39:44,125 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 06:39:44,185 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6110631-4df8-4aa4-8410-3531460375b2/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 06:39:44,190 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 06:39:44,190 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 06:39:44,211 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 06:39:44,212 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 06:39:44,212 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 06:39:44,213 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 06:39:44,213 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 06:39:44,213 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 06:39:44,213 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 06:39:44,213 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 06:39:44,213 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 06:39:44,213 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 06:39:44,214 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 06:39:44,214 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 06:39:44,214 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 06:39:44,214 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 06:39:44,214 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 06:39:44,214 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 06:39:44,214 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 06:39:44,214 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 06:39:44,214 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 06:39:44,214 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 06:39:44,214 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 06:39:44,214 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 06:39:44,214 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 06:39:44,215 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 06:39:44,215 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:39:44,215 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:39:44,215 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:39:44,215 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:39:44,215 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 06:39:44,215 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:39:44,215 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:39:44,215 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:39:44,215 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:39:44,215 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 06:39:44,216 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 06:39:44,216 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 06:39:44,216 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 06:39:44,216 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 06:39:44,216 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 06:39:44,216 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 06:39:44,216 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 06:39:44,216 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 06:39:44,216 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 06:39:44,216 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_a6110631-4df8-4aa4-8410-3531460375b2/bin/uautomizer-verify-84ZbGMXZE1 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 -> ed8936a2abd022df2df7ae7f4cc5a13ffa2d4ca9f4dc64b188ddb89053a00421 [2024-12-02 06:39:44,471 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 06:39:44,480 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 06:39:44,483 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 06:39:44,484 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 06:39:44,484 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 06:39:44,485 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6110631-4df8-4aa4-8410-3531460375b2/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2024-12-02 06:39:47,151 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6110631-4df8-4aa4-8410-3531460375b2/bin/uautomizer-verify-84ZbGMXZE1/data/dd00708fe/ce343ac79f1645c9be9f49eb1830f18a/FLAG6a03be392 [2024-12-02 06:39:47,418 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 06:39:47,418 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6110631-4df8-4aa4-8410-3531460375b2/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2024-12-02 06:39:47,430 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6110631-4df8-4aa4-8410-3531460375b2/bin/uautomizer-verify-84ZbGMXZE1/data/dd00708fe/ce343ac79f1645c9be9f49eb1830f18a/FLAG6a03be392 [2024-12-02 06:39:47,442 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6110631-4df8-4aa4-8410-3531460375b2/bin/uautomizer-verify-84ZbGMXZE1/data/dd00708fe/ce343ac79f1645c9be9f49eb1830f18a [2024-12-02 06:39:47,444 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 06:39:47,445 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 06:39:47,446 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 06:39:47,446 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 06:39:47,450 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 06:39:47,450 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:39:47" (1/1) ... [2024-12-02 06:39:47,451 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32381a05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:39:47, skipping insertion in model container [2024-12-02 06:39:47,451 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:39:47" (1/1) ... [2024-12-02 06:39:47,498 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 06:39:47,908 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6110631-4df8-4aa4-8410-3531460375b2/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c[31957,31970] [2024-12-02 06:39:48,043 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:39:48,058 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 06:39:48,274 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6110631-4df8-4aa4-8410-3531460375b2/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c[31957,31970] [2024-12-02 06:39:48,392 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:39:48,409 INFO L204 MainTranslator]: Completed translation [2024-12-02 06:39:48,409 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:39:48 WrapperNode [2024-12-02 06:39:48,409 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 06:39:48,410 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 06:39:48,410 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 06:39:48,410 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 06:39:48,417 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:39:48" (1/1) ... [2024-12-02 06:39:48,432 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:39:48" (1/1) ... [2024-12-02 06:39:48,497 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2817 [2024-12-02 06:39:48,497 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 06:39:48,498 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 06:39:48,498 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 06:39:48,498 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 06:39:48,507 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:39:48" (1/1) ... [2024-12-02 06:39:48,508 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:39:48" (1/1) ... [2024-12-02 06:39:48,529 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:39:48" (1/1) ... [2024-12-02 06:39:48,553 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]. [2024-12-02 06:39:48,554 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:39:48" (1/1) ... [2024-12-02 06:39:48,554 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:39:48" (1/1) ... [2024-12-02 06:39:48,577 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:39:48" (1/1) ... [2024-12-02 06:39:48,579 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:39:48" (1/1) ... [2024-12-02 06:39:48,593 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:39:48" (1/1) ... [2024-12-02 06:39:48,602 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:39:48" (1/1) ... [2024-12-02 06:39:48,607 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:39:48" (1/1) ... [2024-12-02 06:39:48,617 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 06:39:48,618 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 06:39:48,618 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 06:39:48,618 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 06:39:48,619 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:39:48" (1/1) ... [2024-12-02 06:39:48,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:39:48,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6110631-4df8-4aa4-8410-3531460375b2/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:39:48,651 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6110631-4df8-4aa4-8410-3531460375b2/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 06:39:48,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6110631-4df8-4aa4-8410-3531460375b2/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 06:39:48,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 06:39:48,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 06:39:48,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 06:39:48,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 06:39:48,834 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 06:39:48,836 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 06:39:51,253 INFO L? ?]: Removed 194 outVars from TransFormulas that were not future-live. [2024-12-02 06:39:51,253 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 06:39:51,277 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 06:39:51,278 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 06:39:51,278 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:39:51 BoogieIcfgContainer [2024-12-02 06:39:51,278 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 06:39:51,281 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 06:39:51,281 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 06:39:51,285 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 06:39:51,286 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:39:47" (1/3) ... [2024-12-02 06:39:51,286 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae2d24e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:39:51, skipping insertion in model container [2024-12-02 06:39:51,286 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:39:48" (2/3) ... [2024-12-02 06:39:51,287 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae2d24e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:39:51, skipping insertion in model container [2024-12-02 06:39:51,287 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:39:51" (3/3) ... [2024-12-02 06:39:51,288 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2024-12-02 06:39:51,303 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 06:39:51,305 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c that has 1 procedures, 719 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-12-02 06:39:51,375 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 06:39:51,388 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;@12150896, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 06:39:51,388 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 06:39:51,394 INFO L276 IsEmpty]: Start isEmpty. Operand has 719 states, 717 states have (on average 1.7880055788005578) internal successors, (1282), 718 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:39:51,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-12-02 06:39:51,411 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:39:51,412 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:39:51,412 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:39:51,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:39:51,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1986438250, now seen corresponding path program 1 times [2024-12-02 06:39:51,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:39:51,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054457162] [2024-12-02 06:39:51,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:39:51,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:39:52,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:39:53,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:39:53,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:39:53,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054457162] [2024-12-02 06:39:53,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054457162] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:39:53,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:39:53,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:39:53,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613190101] [2024-12-02 06:39:53,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:39:53,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:39:53,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:39:53,138 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:39:53,139 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:39:53,142 INFO L87 Difference]: Start difference. First operand has 719 states, 717 states have (on average 1.7880055788005578) internal successors, (1282), 718 states have internal predecessors, (1282), 0 states have call successors, (0), 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 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:39:53,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:39:53,422 INFO L93 Difference]: Finished difference Result 2759 states and 4928 transitions. [2024-12-02 06:39:53,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:39:53,424 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 0 states have call successors, (0), 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 304 [2024-12-02 06:39:53,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:39:53,442 INFO L225 Difference]: With dead ends: 2759 [2024-12-02 06:39:53,442 INFO L226 Difference]: Without dead ends: 2080 [2024-12-02 06:39:53,447 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:39:53,450 INFO L435 NwaCegarLoop]: 2128 mSDtfsCounter, 2378 mSDsluCounter, 2407 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2378 SdHoareTripleChecker+Valid, 4535 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:39:53,450 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2378 Valid, 4535 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:39:53,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2080 states. [2024-12-02 06:39:53,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2080 to 1401. [2024-12-02 06:39:53,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1401 states, 1400 states have (on average 1.5492857142857144) internal successors, (2169), 1400 states have internal predecessors, (2169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:39:53,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1401 states to 1401 states and 2169 transitions. [2024-12-02 06:39:53,537 INFO L78 Accepts]: Start accepts. Automaton has 1401 states and 2169 transitions. Word has length 304 [2024-12-02 06:39:53,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:39:53,538 INFO L471 AbstractCegarLoop]: Abstraction has 1401 states and 2169 transitions. [2024-12-02 06:39:53,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:39:53,538 INFO L276 IsEmpty]: Start isEmpty. Operand 1401 states and 2169 transitions. [2024-12-02 06:39:53,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2024-12-02 06:39:53,544 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:39:53,544 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:39:53,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 06:39:53,544 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:39:53,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:39:53,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1283684265, now seen corresponding path program 1 times [2024-12-02 06:39:53,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:39:53,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180169256] [2024-12-02 06:39:53,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:39:53,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:39:53,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:39:53,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:39:53,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:39:53,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180169256] [2024-12-02 06:39:53,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180169256] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:39:53,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:39:53,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:39:53,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532150513] [2024-12-02 06:39:53,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:39:53,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:39:53,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:39:53,874 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:39:53,874 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:39:53,875 INFO L87 Difference]: Start difference. First operand 1401 states and 2169 transitions. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:39:53,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:39:53,984 INFO L93 Difference]: Finished difference Result 4028 states and 6200 transitions. [2024-12-02 06:39:53,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:39:53,985 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 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 306 [2024-12-02 06:39:53,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:39:53,995 INFO L225 Difference]: With dead ends: 4028 [2024-12-02 06:39:53,995 INFO L226 Difference]: Without dead ends: 2752 [2024-12-02 06:39:53,997 INFO L434 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 [2024-12-02 06:39:53,997 INFO L435 NwaCegarLoop]: 2104 mSDtfsCounter, 976 mSDsluCounter, 1057 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 3161 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:39:53,998 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [976 Valid, 3161 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:39:54,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2752 states. [2024-12-02 06:39:54,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2752 to 2750. [2024-12-02 06:39:54,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2750 states, 2749 states have (on average 1.5401964350672972) internal successors, (4234), 2749 states have internal predecessors, (4234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:39:54,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2750 states to 2750 states and 4234 transitions. [2024-12-02 06:39:54,075 INFO L78 Accepts]: Start accepts. Automaton has 2750 states and 4234 transitions. Word has length 306 [2024-12-02 06:39:54,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:39:54,075 INFO L471 AbstractCegarLoop]: Abstraction has 2750 states and 4234 transitions. [2024-12-02 06:39:54,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:39:54,076 INFO L276 IsEmpty]: Start isEmpty. Operand 2750 states and 4234 transitions. [2024-12-02 06:39:54,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2024-12-02 06:39:54,083 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:39:54,083 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:39:54,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 06:39:54,084 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:39:54,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:39:54,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1557954012, now seen corresponding path program 1 times [2024-12-02 06:39:54,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:39:54,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060877212] [2024-12-02 06:39:54,085 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:39:54,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:39:54,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:39:54,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:39:54,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:39:54,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060877212] [2024-12-02 06:39:54,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060877212] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:39:54,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:39:54,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:39:54,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181774239] [2024-12-02 06:39:54,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:39:54,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:39:54,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:39:54,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:39:54,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:39:54,316 INFO L87 Difference]: Start difference. First operand 2750 states and 4234 transitions. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:39:54,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:39:54,409 INFO L93 Difference]: Finished difference Result 8183 states and 12581 transitions. [2024-12-02 06:39:54,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:39:54,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 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 306 [2024-12-02 06:39:54,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:39:54,430 INFO L225 Difference]: With dead ends: 8183 [2024-12-02 06:39:54,430 INFO L226 Difference]: Without dead ends: 5471 [2024-12-02 06:39:54,434 INFO L434 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 [2024-12-02 06:39:54,434 INFO L435 NwaCegarLoop]: 2204 mSDtfsCounter, 1099 mSDsluCounter, 1100 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1099 SdHoareTripleChecker+Valid, 3304 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:39:54,435 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1099 Valid, 3304 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:39:54,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5471 states. [2024-12-02 06:39:54,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5471 to 2769. [2024-12-02 06:39:54,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2769 states, 2768 states have (on average 1.5401011560693643) internal successors, (4263), 2768 states have internal predecessors, (4263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:39:54,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2769 states to 2769 states and 4263 transitions. [2024-12-02 06:39:54,565 INFO L78 Accepts]: Start accepts. Automaton has 2769 states and 4263 transitions. Word has length 306 [2024-12-02 06:39:54,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:39:54,565 INFO L471 AbstractCegarLoop]: Abstraction has 2769 states and 4263 transitions. [2024-12-02 06:39:54,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:39:54,566 INFO L276 IsEmpty]: Start isEmpty. Operand 2769 states and 4263 transitions. [2024-12-02 06:39:54,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2024-12-02 06:39:54,575 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:39:54,576 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:39:54,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 06:39:54,576 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:39:54,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:39:54,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1382512794, now seen corresponding path program 1 times [2024-12-02 06:39:54,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:39:54,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605053624] [2024-12-02 06:39:54,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:39:54,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:39:54,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:39:54,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:39:54,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:39:54,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605053624] [2024-12-02 06:39:54,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605053624] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:39:54,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:39:54,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:39:54,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341394571] [2024-12-02 06:39:54,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:39:54,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:39:54,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:39:54,785 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:39:54,786 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:39:54,786 INFO L87 Difference]: Start difference. First operand 2769 states and 4263 transitions. Second operand has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:39:54,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:39:54,849 INFO L93 Difference]: Finished difference Result 5500 states and 8456 transitions. [2024-12-02 06:39:54,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:39:54,850 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 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 307 [2024-12-02 06:39:54,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:39:54,859 INFO L225 Difference]: With dead ends: 5500 [2024-12-02 06:39:54,859 INFO L226 Difference]: Without dead ends: 2787 [2024-12-02 06:39:54,862 INFO L434 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 [2024-12-02 06:39:54,863 INFO L435 NwaCegarLoop]: 1123 mSDtfsCounter, 5 mSDsluCounter, 1108 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2231 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:39:54,863 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2231 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:39:54,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2787 states. [2024-12-02 06:39:54,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2787 to 2787. [2024-12-02 06:39:54,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2787 states, 2786 states have (on average 1.5376884422110553) internal successors, (4284), 2786 states have internal predecessors, (4284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:39:54,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2787 states to 2787 states and 4284 transitions. [2024-12-02 06:39:54,938 INFO L78 Accepts]: Start accepts. Automaton has 2787 states and 4284 transitions. Word has length 307 [2024-12-02 06:39:54,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:39:54,938 INFO L471 AbstractCegarLoop]: Abstraction has 2787 states and 4284 transitions. [2024-12-02 06:39:54,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:39:54,938 INFO L276 IsEmpty]: Start isEmpty. Operand 2787 states and 4284 transitions. [2024-12-02 06:39:54,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2024-12-02 06:39:54,946 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:39:54,946 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:39:54,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 06:39:54,946 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:39:54,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:39:54,947 INFO L85 PathProgramCache]: Analyzing trace with hash -738211950, now seen corresponding path program 1 times [2024-12-02 06:39:54,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:39:54,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288603643] [2024-12-02 06:39:54,947 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:39:54,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:39:55,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:39:55,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:39:55,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:39:55,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288603643] [2024-12-02 06:39:55,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288603643] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:39:55,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:39:55,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:39:55,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431374620] [2024-12-02 06:39:55,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:39:55,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:39:55,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:39:55,182 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:39:55,182 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:39:55,183 INFO L87 Difference]: Start difference. First operand 2787 states and 4284 transitions. Second operand has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:39:55,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:39:55,312 INFO L93 Difference]: Finished difference Result 7926 states and 12110 transitions. [2024-12-02 06:39:55,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:39:55,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 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 308 [2024-12-02 06:39:55,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:39:55,328 INFO L225 Difference]: With dead ends: 7926 [2024-12-02 06:39:55,329 INFO L226 Difference]: Without dead ends: 5380 [2024-12-02 06:39:55,332 INFO L434 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 [2024-12-02 06:39:55,332 INFO L435 NwaCegarLoop]: 2164 mSDtfsCounter, 969 mSDsluCounter, 1057 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 969 SdHoareTripleChecker+Valid, 3221 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:39:55,333 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [969 Valid, 3221 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:39:55,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5380 states. [2024-12-02 06:39:55,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5380 to 5378. [2024-12-02 06:39:55,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5378 states, 5377 states have (on average 1.5251999256090758) internal successors, (8201), 5377 states have internal predecessors, (8201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:39:55,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5378 states to 5378 states and 8201 transitions. [2024-12-02 06:39:55,452 INFO L78 Accepts]: Start accepts. Automaton has 5378 states and 8201 transitions. Word has length 308 [2024-12-02 06:39:55,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:39:55,453 INFO L471 AbstractCegarLoop]: Abstraction has 5378 states and 8201 transitions. [2024-12-02 06:39:55,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:39:55,453 INFO L276 IsEmpty]: Start isEmpty. Operand 5378 states and 8201 transitions. [2024-12-02 06:39:55,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2024-12-02 06:39:55,463 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:39:55,463 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:39:55,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 06:39:55,463 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:39:55,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:39:55,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1877946257, now seen corresponding path program 1 times [2024-12-02 06:39:55,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:39:55,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975134933] [2024-12-02 06:39:55,464 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:39:55,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:39:55,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:39:56,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:39:56,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:39:56,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975134933] [2024-12-02 06:39:56,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975134933] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:39:56,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:39:56,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:39:56,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842475804] [2024-12-02 06:39:56,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:39:56,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:39:56,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:39:56,376 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:39:56,376 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:39:56,376 INFO L87 Difference]: Start difference. First operand 5378 states and 8201 transitions. Second operand has 5 states, 5 states have (on average 61.6) internal successors, (308), 5 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:39:56,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:39:56,666 INFO L93 Difference]: Finished difference Result 25884 states and 39341 transitions. [2024-12-02 06:39:56,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:39:56,667 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 61.6) internal successors, (308), 5 states have internal predecessors, (308), 0 states have call successors, (0), 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 308 [2024-12-02 06:39:56,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:39:56,714 INFO L225 Difference]: With dead ends: 25884 [2024-12-02 06:39:56,714 INFO L226 Difference]: Without dead ends: 20561 [2024-12-02 06:39:56,723 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:39:56,724 INFO L435 NwaCegarLoop]: 3065 mSDtfsCounter, 3496 mSDsluCounter, 4531 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3496 SdHoareTripleChecker+Valid, 7596 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:39:56,724 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3496 Valid, 7596 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:39:56,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20561 states. [2024-12-02 06:39:57,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20561 to 10327. [2024-12-02 06:39:57,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10327 states, 10326 states have (on average 1.5096842920782492) internal successors, (15589), 10326 states have internal predecessors, (15589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:39:57,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10327 states to 10327 states and 15589 transitions. [2024-12-02 06:39:57,058 INFO L78 Accepts]: Start accepts. Automaton has 10327 states and 15589 transitions. Word has length 308 [2024-12-02 06:39:57,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:39:57,059 INFO L471 AbstractCegarLoop]: Abstraction has 10327 states and 15589 transitions. [2024-12-02 06:39:57,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 61.6) internal successors, (308), 5 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:39:57,059 INFO L276 IsEmpty]: Start isEmpty. Operand 10327 states and 15589 transitions. [2024-12-02 06:39:57,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2024-12-02 06:39:57,080 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:39:57,080 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:39:57,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 06:39:57,080 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:39:57,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:39:57,081 INFO L85 PathProgramCache]: Analyzing trace with hash -2116203553, now seen corresponding path program 1 times [2024-12-02 06:39:57,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:39:57,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871851210] [2024-12-02 06:39:57,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:39:57,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:39:57,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:39:57,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:39:57,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:39:57,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871851210] [2024-12-02 06:39:57,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871851210] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:39:57,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:39:57,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:39:57,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018072689] [2024-12-02 06:39:57,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:39:57,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:39:57,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:39:57,964 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:39:57,964 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:39:57,965 INFO L87 Difference]: Start difference. First operand 10327 states and 15589 transitions. Second operand has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:39:58,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:39:58,113 INFO L93 Difference]: Finished difference Result 29919 states and 44933 transitions. [2024-12-02 06:39:58,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:39:58,115 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 0 states have call successors, (0), 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 310 [2024-12-02 06:39:58,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:39:58,150 INFO L225 Difference]: With dead ends: 29919 [2024-12-02 06:39:58,150 INFO L226 Difference]: Without dead ends: 20365 [2024-12-02 06:39:58,158 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:39:58,159 INFO L435 NwaCegarLoop]: 2193 mSDtfsCounter, 1056 mSDsluCounter, 3293 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1056 SdHoareTripleChecker+Valid, 5486 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:39:58,159 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1056 Valid, 5486 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:39:58,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20365 states. [2024-12-02 06:39:58,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20365 to 11035. [2024-12-02 06:39:58,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11035 states, 11034 states have (on average 1.5224759833242705) internal successors, (16799), 11034 states have internal predecessors, (16799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:39:58,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11035 states to 11035 states and 16799 transitions. [2024-12-02 06:39:58,346 INFO L78 Accepts]: Start accepts. Automaton has 11035 states and 16799 transitions. Word has length 310 [2024-12-02 06:39:58,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:39:58,346 INFO L471 AbstractCegarLoop]: Abstraction has 11035 states and 16799 transitions. [2024-12-02 06:39:58,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:39:58,347 INFO L276 IsEmpty]: Start isEmpty. Operand 11035 states and 16799 transitions. [2024-12-02 06:39:58,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2024-12-02 06:39:58,364 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:39:58,364 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:39:58,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 06:39:58,364 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:39:58,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:39:58,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1251317894, now seen corresponding path program 1 times [2024-12-02 06:39:58,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:39:58,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542035086] [2024-12-02 06:39:58,365 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:39:58,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:39:58,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:39:58,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:39:58,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:39:58,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542035086] [2024-12-02 06:39:58,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542035086] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:39:58,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:39:58,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:39:58,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525223202] [2024-12-02 06:39:58,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:39:58,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:39:58,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:39:58,542 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:39:58,542 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:39:58,542 INFO L87 Difference]: Start difference. First operand 11035 states and 16799 transitions. Second operand has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:39:58,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:39:58,704 INFO L93 Difference]: Finished difference Result 31029 states and 46853 transitions. [2024-12-02 06:39:58,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:39:58,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 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 310 [2024-12-02 06:39:58,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:39:58,742 INFO L225 Difference]: With dead ends: 31029 [2024-12-02 06:39:58,743 INFO L226 Difference]: Without dead ends: 21139 [2024-12-02 06:39:58,751 INFO L434 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 [2024-12-02 06:39:58,752 INFO L435 NwaCegarLoop]: 2150 mSDtfsCounter, 956 mSDsluCounter, 1057 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 956 SdHoareTripleChecker+Valid, 3207 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:39:58,752 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [956 Valid, 3207 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:39:58,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21139 states. [2024-12-02 06:39:58,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21139 to 21137. [2024-12-02 06:39:58,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21137 states, 21136 states have (on average 1.5066710825132474) internal successors, (31845), 21136 states have internal predecessors, (31845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:39:59,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21137 states to 21137 states and 31845 transitions. [2024-12-02 06:39:59,018 INFO L78 Accepts]: Start accepts. Automaton has 21137 states and 31845 transitions. Word has length 310 [2024-12-02 06:39:59,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:39:59,019 INFO L471 AbstractCegarLoop]: Abstraction has 21137 states and 31845 transitions. [2024-12-02 06:39:59,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:39:59,019 INFO L276 IsEmpty]: Start isEmpty. Operand 21137 states and 31845 transitions. [2024-12-02 06:39:59,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2024-12-02 06:39:59,038 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:39:59,038 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:39:59,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 06:39:59,038 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:39:59,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:39:59,039 INFO L85 PathProgramCache]: Analyzing trace with hash -655680967, now seen corresponding path program 1 times [2024-12-02 06:39:59,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:39:59,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024726688] [2024-12-02 06:39:59,039 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:39:59,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:39:59,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:39:59,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:39:59,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:39:59,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024726688] [2024-12-02 06:39:59,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024726688] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:39:59,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:39:59,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:39:59,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55740268] [2024-12-02 06:39:59,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:39:59,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:39:59,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:39:59,279 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:39:59,279 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:39:59,279 INFO L87 Difference]: Start difference. First operand 21137 states and 31845 transitions. Second operand has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:39:59,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:39:59,542 INFO L93 Difference]: Finished difference Result 58773 states and 87581 transitions. [2024-12-02 06:39:59,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:39:59,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 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 312 [2024-12-02 06:39:59,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:39:59,633 INFO L225 Difference]: With dead ends: 58773 [2024-12-02 06:39:59,633 INFO L226 Difference]: Without dead ends: 39883 [2024-12-02 06:39:59,655 INFO L434 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 [2024-12-02 06:39:59,655 INFO L435 NwaCegarLoop]: 2142 mSDtfsCounter, 991 mSDsluCounter, 1057 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 3199 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:39:59,655 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [991 Valid, 3199 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:39:59,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39883 states. [2024-12-02 06:40:00,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39883 to 39881. [2024-12-02 06:40:00,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39881 states, 39880 states have (on average 1.4857321965897694) internal successors, (59251), 39880 states have internal predecessors, (59251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:00,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39881 states to 39881 states and 59251 transitions. [2024-12-02 06:40:00,192 INFO L78 Accepts]: Start accepts. Automaton has 39881 states and 59251 transitions. Word has length 312 [2024-12-02 06:40:00,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:40:00,192 INFO L471 AbstractCegarLoop]: Abstraction has 39881 states and 59251 transitions. [2024-12-02 06:40:00,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:00,192 INFO L276 IsEmpty]: Start isEmpty. Operand 39881 states and 59251 transitions. [2024-12-02 06:40:00,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2024-12-02 06:40:00,217 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:40:00,217 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:40:00,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 06:40:00,217 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:40:00,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:40:00,218 INFO L85 PathProgramCache]: Analyzing trace with hash 2078043134, now seen corresponding path program 1 times [2024-12-02 06:40:00,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:40:00,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813075267] [2024-12-02 06:40:00,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:40:00,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:40:00,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:40:00,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:40:00,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:40:00,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813075267] [2024-12-02 06:40:00,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813075267] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:40:00,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:40:00,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:40:00,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371055152] [2024-12-02 06:40:00,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:40:00,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:40:00,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:40:00,322 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:40:00,322 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:40:00,322 INFO L87 Difference]: Start difference. First operand 39881 states and 59251 transitions. Second operand has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:00,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:40:00,636 INFO L93 Difference]: Finished difference Result 113581 states and 167441 transitions. [2024-12-02 06:40:00,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:40:00,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 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 312 [2024-12-02 06:40:00,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:40:00,743 INFO L225 Difference]: With dead ends: 113581 [2024-12-02 06:40:00,743 INFO L226 Difference]: Without dead ends: 76699 [2024-12-02 06:40:00,765 INFO L434 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 [2024-12-02 06:40:00,765 INFO L435 NwaCegarLoop]: 1113 mSDtfsCounter, 960 mSDsluCounter, 1105 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 960 SdHoareTripleChecker+Valid, 2218 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:40:00,765 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [960 Valid, 2218 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:40:00,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76699 states. [2024-12-02 06:40:01,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76699 to 40665. [2024-12-02 06:40:01,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40665 states, 40664 states have (on average 1.4824660633484164) internal successors, (60283), 40664 states have internal predecessors, (60283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:01,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40665 states to 40665 states and 60283 transitions. [2024-12-02 06:40:01,541 INFO L78 Accepts]: Start accepts. Automaton has 40665 states and 60283 transitions. Word has length 312 [2024-12-02 06:40:01,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:40:01,541 INFO L471 AbstractCegarLoop]: Abstraction has 40665 states and 60283 transitions. [2024-12-02 06:40:01,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:01,541 INFO L276 IsEmpty]: Start isEmpty. Operand 40665 states and 60283 transitions. [2024-12-02 06:40:01,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2024-12-02 06:40:01,578 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:40:01,578 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:40:01,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 06:40:01,578 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:40:01,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:40:01,579 INFO L85 PathProgramCache]: Analyzing trace with hash -720985686, now seen corresponding path program 1 times [2024-12-02 06:40:01,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:40:01,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810157500] [2024-12-02 06:40:01,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:40:01,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:40:01,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:40:01,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:40:01,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:40:01,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810157500] [2024-12-02 06:40:01,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810157500] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:40:01,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:40:01,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:40:01,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857618815] [2024-12-02 06:40:01,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:40:01,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:40:01,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:40:01,742 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:40:01,742 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:40:01,742 INFO L87 Difference]: Start difference. First operand 40665 states and 60283 transitions. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:01,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:40:01,947 INFO L93 Difference]: Finished difference Result 78707 states and 116216 transitions. [2024-12-02 06:40:01,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:40:01,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 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 313 [2024-12-02 06:40:01,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:40:01,981 INFO L225 Difference]: With dead ends: 78707 [2024-12-02 06:40:01,981 INFO L226 Difference]: Without dead ends: 41709 [2024-12-02 06:40:01,999 INFO L434 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 [2024-12-02 06:40:02,000 INFO L435 NwaCegarLoop]: 1123 mSDtfsCounter, 7 mSDsluCounter, 1107 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2230 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:40:02,000 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2230 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:40:02,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41709 states. [2024-12-02 06:40:02,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41709 to 41709. [2024-12-02 06:40:02,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41709 states, 41708 states have (on average 1.475568236309581) internal successors, (61543), 41708 states have internal predecessors, (61543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:02,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41709 states to 41709 states and 61543 transitions. [2024-12-02 06:40:02,641 INFO L78 Accepts]: Start accepts. Automaton has 41709 states and 61543 transitions. Word has length 313 [2024-12-02 06:40:02,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:40:02,641 INFO L471 AbstractCegarLoop]: Abstraction has 41709 states and 61543 transitions. [2024-12-02 06:40:02,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:02,641 INFO L276 IsEmpty]: Start isEmpty. Operand 41709 states and 61543 transitions. [2024-12-02 06:40:02,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2024-12-02 06:40:02,660 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:40:02,660 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:40:02,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 06:40:02,660 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:40:02,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:40:02,661 INFO L85 PathProgramCache]: Analyzing trace with hash 455591057, now seen corresponding path program 1 times [2024-12-02 06:40:02,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:40:02,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902535376] [2024-12-02 06:40:02,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:40:02,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:40:02,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:40:03,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:40:03,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:40:03,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902535376] [2024-12-02 06:40:03,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902535376] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:40:03,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:40:03,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:40:03,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012406470] [2024-12-02 06:40:03,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:40:03,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:40:03,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:40:03,262 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:40:03,262 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:40:03,263 INFO L87 Difference]: Start difference. First operand 41709 states and 61543 transitions. Second operand has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:03,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:40:03,400 INFO L93 Difference]: Finished difference Result 84107 states and 124009 transitions. [2024-12-02 06:40:03,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:40:03,401 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 0 states have call successors, (0), 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 314 [2024-12-02 06:40:03,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:40:03,430 INFO L225 Difference]: With dead ends: 84107 [2024-12-02 06:40:03,430 INFO L226 Difference]: Without dead ends: 45897 [2024-12-02 06:40:03,447 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:40:03,447 INFO L435 NwaCegarLoop]: 1228 mSDtfsCounter, 92 mSDsluCounter, 2328 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 3556 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:40:03,447 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 3556 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:40:03,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45897 states. [2024-12-02 06:40:03,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45897 to 44365. [2024-12-02 06:40:03,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44365 states, 44364 states have (on average 1.4845820935893967) internal successors, (65862), 44364 states have internal predecessors, (65862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:03,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44365 states to 44365 states and 65862 transitions. [2024-12-02 06:40:03,913 INFO L78 Accepts]: Start accepts. Automaton has 44365 states and 65862 transitions. Word has length 314 [2024-12-02 06:40:03,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:40:03,913 INFO L471 AbstractCegarLoop]: Abstraction has 44365 states and 65862 transitions. [2024-12-02 06:40:03,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:03,914 INFO L276 IsEmpty]: Start isEmpty. Operand 44365 states and 65862 transitions. [2024-12-02 06:40:03,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2024-12-02 06:40:03,934 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:40:03,935 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:40:03,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 06:40:03,935 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:40:03,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:40:03,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1093263433, now seen corresponding path program 1 times [2024-12-02 06:40:03,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:40:03,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513338307] [2024-12-02 06:40:03,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:40:03,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:40:04,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:40:04,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:40:04,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:40:04,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513338307] [2024-12-02 06:40:04,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513338307] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:40:04,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:40:04,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:40:04,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706642955] [2024-12-02 06:40:04,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:40:04,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:40:04,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:40:04,685 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:40:04,685 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:40:04,686 INFO L87 Difference]: Start difference. First operand 44365 states and 65862 transitions. Second operand has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:05,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:40:05,115 INFO L93 Difference]: Finished difference Result 121964 states and 179838 transitions. [2024-12-02 06:40:05,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:40:05,116 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 0 states have call successors, (0), 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 314 [2024-12-02 06:40:05,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:40:05,203 INFO L225 Difference]: With dead ends: 121964 [2024-12-02 06:40:05,203 INFO L226 Difference]: Without dead ends: 84034 [2024-12-02 06:40:05,236 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:40:05,237 INFO L435 NwaCegarLoop]: 2203 mSDtfsCounter, 1065 mSDsluCounter, 3303 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1065 SdHoareTripleChecker+Valid, 5506 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:40:05,237 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1065 Valid, 5506 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:40:05,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84034 states. [2024-12-02 06:40:05,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84034 to 48000. [2024-12-02 06:40:05,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48000 states, 47999 states have (on average 1.4851976082835059) internal successors, (71288), 47999 states have internal predecessors, (71288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:05,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48000 states to 48000 states and 71288 transitions. [2024-12-02 06:40:05,936 INFO L78 Accepts]: Start accepts. Automaton has 48000 states and 71288 transitions. Word has length 314 [2024-12-02 06:40:05,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:40:05,937 INFO L471 AbstractCegarLoop]: Abstraction has 48000 states and 71288 transitions. [2024-12-02 06:40:05,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:05,937 INFO L276 IsEmpty]: Start isEmpty. Operand 48000 states and 71288 transitions. [2024-12-02 06:40:05,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2024-12-02 06:40:05,963 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:40:05,964 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:40:05,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 06:40:05,964 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:40:05,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:40:05,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1595051516, now seen corresponding path program 1 times [2024-12-02 06:40:05,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:40:05,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109754831] [2024-12-02 06:40:05,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:40:05,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:40:06,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:40:06,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:40:06,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:40:06,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109754831] [2024-12-02 06:40:06,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109754831] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:40:06,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:40:06,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:40:06,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015886525] [2024-12-02 06:40:06,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:40:06,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:40:06,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:40:06,769 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:40:06,769 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:40:06,769 INFO L87 Difference]: Start difference. First operand 48000 states and 71288 transitions. Second operand has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:06,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:40:06,912 INFO L93 Difference]: Finished difference Result 80238 states and 118191 transitions. [2024-12-02 06:40:06,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:40:06,912 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 0 states have call successors, (0), 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 316 [2024-12-02 06:40:06,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:40:06,937 INFO L225 Difference]: With dead ends: 80238 [2024-12-02 06:40:06,937 INFO L226 Difference]: Without dead ends: 40530 [2024-12-02 06:40:06,954 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:40:06,954 INFO L435 NwaCegarLoop]: 1250 mSDtfsCounter, 95 mSDsluCounter, 2355 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 3605 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:40:06,955 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 3605 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:40:06,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40530 states. [2024-12-02 06:40:07,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40530 to 39824. [2024-12-02 06:40:07,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39824 states, 39823 states have (on average 1.484518996559777) internal successors, (59118), 39823 states have internal predecessors, (59118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:07,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39824 states to 39824 states and 59118 transitions. [2024-12-02 06:40:07,374 INFO L78 Accepts]: Start accepts. Automaton has 39824 states and 59118 transitions. Word has length 316 [2024-12-02 06:40:07,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:40:07,374 INFO L471 AbstractCegarLoop]: Abstraction has 39824 states and 59118 transitions. [2024-12-02 06:40:07,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:07,374 INFO L276 IsEmpty]: Start isEmpty. Operand 39824 states and 59118 transitions. [2024-12-02 06:40:07,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2024-12-02 06:40:07,395 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:40:07,395 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:40:07,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 06:40:07,395 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:40:07,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:40:07,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1524939500, now seen corresponding path program 1 times [2024-12-02 06:40:07,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:40:07,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306454991] [2024-12-02 06:40:07,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:40:07,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:40:07,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:40:07,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:40:07,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:40:07,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306454991] [2024-12-02 06:40:07,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306454991] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:40:07,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:40:07,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:40:07,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085005338] [2024-12-02 06:40:07,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:40:07,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:40:07,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:40:07,482 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:40:07,482 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:40:07,482 INFO L87 Difference]: Start difference. First operand 39824 states and 59118 transitions. Second operand has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:07,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:40:07,609 INFO L93 Difference]: Finished difference Result 83422 states and 123309 transitions. [2024-12-02 06:40:07,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:40:07,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 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 323 [2024-12-02 06:40:07,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:40:07,648 INFO L225 Difference]: With dead ends: 83422 [2024-12-02 06:40:07,648 INFO L226 Difference]: Without dead ends: 61440 [2024-12-02 06:40:07,664 INFO L434 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 [2024-12-02 06:40:07,665 INFO L435 NwaCegarLoop]: 1389 mSDtfsCounter, 1078 mSDsluCounter, 1104 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1078 SdHoareTripleChecker+Valid, 2493 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:40:07,665 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1078 Valid, 2493 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:40:07,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61440 states. [2024-12-02 06:40:08,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61440 to 39824. [2024-12-02 06:40:08,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39824 states, 39823 states have (on average 1.4842678853928635) internal successors, (59108), 39823 states have internal predecessors, (59108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:08,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39824 states to 39824 states and 59108 transitions. [2024-12-02 06:40:08,217 INFO L78 Accepts]: Start accepts. Automaton has 39824 states and 59108 transitions. Word has length 323 [2024-12-02 06:40:08,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:40:08,218 INFO L471 AbstractCegarLoop]: Abstraction has 39824 states and 59108 transitions. [2024-12-02 06:40:08,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:08,218 INFO L276 IsEmpty]: Start isEmpty. Operand 39824 states and 59108 transitions. [2024-12-02 06:40:08,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2024-12-02 06:40:08,248 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:40:08,248 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:40:08,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 06:40:08,249 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:40:08,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:40:08,250 INFO L85 PathProgramCache]: Analyzing trace with hash -194942146, now seen corresponding path program 1 times [2024-12-02 06:40:08,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:40:08,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779020420] [2024-12-02 06:40:08,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:40:08,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:40:08,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:40:08,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:40:08,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:40:08,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779020420] [2024-12-02 06:40:08,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779020420] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:40:08,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:40:08,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:40:08,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172920625] [2024-12-02 06:40:08,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:40:08,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:40:08,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:40:08,396 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:40:08,397 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:40:08,397 INFO L87 Difference]: Start difference. First operand 39824 states and 59108 transitions. Second operand has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:08,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:40:08,952 INFO L93 Difference]: Finished difference Result 88227 states and 130164 transitions. [2024-12-02 06:40:08,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:40:08,953 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 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 324 [2024-12-02 06:40:08,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:40:08,997 INFO L225 Difference]: With dead ends: 88227 [2024-12-02 06:40:08,997 INFO L226 Difference]: Without dead ends: 64478 [2024-12-02 06:40:09,015 INFO L434 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 [2024-12-02 06:40:09,016 INFO L435 NwaCegarLoop]: 1018 mSDtfsCounter, 601 mSDsluCounter, 834 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 1852 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:40:09,016 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [601 Valid, 1852 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 06:40:09,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64478 states. [2024-12-02 06:40:09,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64478 to 64476. [2024-12-02 06:40:09,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64476 states, 64475 states have (on average 1.4694998061264055) internal successors, (94746), 64475 states have internal predecessors, (94746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:09,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64476 states to 64476 states and 94746 transitions. [2024-12-02 06:40:09,672 INFO L78 Accepts]: Start accepts. Automaton has 64476 states and 94746 transitions. Word has length 324 [2024-12-02 06:40:09,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:40:09,672 INFO L471 AbstractCegarLoop]: Abstraction has 64476 states and 94746 transitions. [2024-12-02 06:40:09,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:09,673 INFO L276 IsEmpty]: Start isEmpty. Operand 64476 states and 94746 transitions. [2024-12-02 06:40:09,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2024-12-02 06:40:09,706 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:40:09,706 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:40:09,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 06:40:09,706 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:40:09,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:40:09,707 INFO L85 PathProgramCache]: Analyzing trace with hash -2112056125, now seen corresponding path program 1 times [2024-12-02 06:40:09,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:40:09,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15738913] [2024-12-02 06:40:09,707 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:40:09,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:40:09,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:40:10,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:40:10,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:40:10,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15738913] [2024-12-02 06:40:10,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15738913] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:40:10,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:40:10,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:40:10,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661394738] [2024-12-02 06:40:10,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:40:10,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:40:10,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:40:10,083 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:40:10,083 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:40:10,084 INFO L87 Difference]: Start difference. First operand 64476 states and 94746 transitions. Second operand has 5 states, 5 states have (on average 64.8) internal successors, (324), 4 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:10,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:40:10,593 INFO L93 Difference]: Finished difference Result 85670 states and 126298 transitions. [2024-12-02 06:40:10,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:40:10,593 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 64.8) internal successors, (324), 4 states have internal predecessors, (324), 0 states have call successors, (0), 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 324 [2024-12-02 06:40:10,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:40:10,626 INFO L225 Difference]: With dead ends: 85670 [2024-12-02 06:40:10,626 INFO L226 Difference]: Without dead ends: 39824 [2024-12-02 06:40:10,647 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:40:10,648 INFO L435 NwaCegarLoop]: 836 mSDtfsCounter, 2626 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2626 SdHoareTripleChecker+Valid, 1389 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:40:10,648 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2626 Valid, 1389 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 06:40:10,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39824 states. [2024-12-02 06:40:11,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39824 to 39824. [2024-12-02 06:40:11,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39824 states, 39823 states have (on average 1.4728172161816036) internal successors, (58652), 39823 states have internal predecessors, (58652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:11,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39824 states to 39824 states and 58652 transitions. [2024-12-02 06:40:11,144 INFO L78 Accepts]: Start accepts. Automaton has 39824 states and 58652 transitions. Word has length 324 [2024-12-02 06:40:11,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:40:11,145 INFO L471 AbstractCegarLoop]: Abstraction has 39824 states and 58652 transitions. [2024-12-02 06:40:11,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 64.8) internal successors, (324), 4 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:11,145 INFO L276 IsEmpty]: Start isEmpty. Operand 39824 states and 58652 transitions. [2024-12-02 06:40:11,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2024-12-02 06:40:11,275 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:40:11,275 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:40:11,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 06:40:11,275 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:40:11,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:40:11,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1518003532, now seen corresponding path program 1 times [2024-12-02 06:40:11,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:40:11,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85181835] [2024-12-02 06:40:11,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:40:11,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:40:11,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:40:12,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:40:12,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:40:12,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85181835] [2024-12-02 06:40:12,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85181835] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:40:12,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:40:12,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 06:40:12,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360464649] [2024-12-02 06:40:12,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:40:12,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 06:40:12,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:40:12,084 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 06:40:12,084 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 06:40:12,084 INFO L87 Difference]: Start difference. First operand 39824 states and 58652 transitions. Second operand has 9 states, 9 states have (on average 36.0) internal successors, (324), 9 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:12,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:40:12,599 INFO L93 Difference]: Finished difference Result 68384 states and 101796 transitions. [2024-12-02 06:40:12,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:40:12,599 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 36.0) internal successors, (324), 9 states have internal predecessors, (324), 0 states have call successors, (0), 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 324 [2024-12-02 06:40:12,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:40:12,666 INFO L225 Difference]: With dead ends: 68384 [2024-12-02 06:40:12,666 INFO L226 Difference]: Without dead ends: 60556 [2024-12-02 06:40:12,686 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 06:40:12,686 INFO L435 NwaCegarLoop]: 1131 mSDtfsCounter, 3565 mSDsluCounter, 5383 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3565 SdHoareTripleChecker+Valid, 6514 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:40:12,686 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3565 Valid, 6514 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 06:40:12,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60556 states. [2024-12-02 06:40:13,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60556 to 60554. [2024-12-02 06:40:13,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60554 states, 60553 states have (on average 1.4696381682162734) internal successors, (88991), 60553 states have internal predecessors, (88991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:13,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60554 states to 60554 states and 88991 transitions. [2024-12-02 06:40:13,432 INFO L78 Accepts]: Start accepts. Automaton has 60554 states and 88991 transitions. Word has length 324 [2024-12-02 06:40:13,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:40:13,432 INFO L471 AbstractCegarLoop]: Abstraction has 60554 states and 88991 transitions. [2024-12-02 06:40:13,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 36.0) internal successors, (324), 9 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:13,433 INFO L276 IsEmpty]: Start isEmpty. Operand 60554 states and 88991 transitions. [2024-12-02 06:40:13,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2024-12-02 06:40:13,458 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:40:13,458 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:40:13,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 06:40:13,458 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:40:13,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:40:13,459 INFO L85 PathProgramCache]: Analyzing trace with hash 330798468, now seen corresponding path program 1 times [2024-12-02 06:40:13,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:40:13,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622616204] [2024-12-02 06:40:13,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:40:13,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:40:13,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:40:14,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:40:14,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:40:14,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622616204] [2024-12-02 06:40:14,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622616204] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:40:14,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:40:14,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:40:14,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047511983] [2024-12-02 06:40:14,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:40:14,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:40:14,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:40:14,138 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:40:14,138 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:40:14,138 INFO L87 Difference]: Start difference. First operand 60554 states and 88991 transitions. Second operand has 4 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:14,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:40:14,324 INFO L93 Difference]: Finished difference Result 106887 states and 156124 transitions. [2024-12-02 06:40:14,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:40:14,324 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 0 states have call successors, (0), 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 324 [2024-12-02 06:40:14,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:40:14,368 INFO L225 Difference]: With dead ends: 106887 [2024-12-02 06:40:14,368 INFO L226 Difference]: Without dead ends: 54663 [2024-12-02 06:40:14,392 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:40:14,392 INFO L435 NwaCegarLoop]: 1226 mSDtfsCounter, 90 mSDsluCounter, 2317 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 3543 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:40:14,392 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 3543 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:40:14,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54663 states. [2024-12-02 06:40:14,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54663 to 54138. [2024-12-02 06:40:14,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54138 states, 54137 states have (on average 1.4688106101187728) internal successors, (79517), 54137 states have internal predecessors, (79517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:14,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54138 states to 54138 states and 79517 transitions. [2024-12-02 06:40:14,973 INFO L78 Accepts]: Start accepts. Automaton has 54138 states and 79517 transitions. Word has length 324 [2024-12-02 06:40:14,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:40:14,973 INFO L471 AbstractCegarLoop]: Abstraction has 54138 states and 79517 transitions. [2024-12-02 06:40:14,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:14,973 INFO L276 IsEmpty]: Start isEmpty. Operand 54138 states and 79517 transitions. [2024-12-02 06:40:14,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2024-12-02 06:40:14,998 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:40:14,998 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:40:14,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 06:40:14,999 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:40:14,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:40:14,999 INFO L85 PathProgramCache]: Analyzing trace with hash -2127121135, now seen corresponding path program 1 times [2024-12-02 06:40:14,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:40:14,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989893952] [2024-12-02 06:40:14,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:40:14,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:40:15,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:40:15,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:40:15,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:40:15,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989893952] [2024-12-02 06:40:15,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989893952] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:40:15,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:40:15,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:40:15,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829158628] [2024-12-02 06:40:15,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:40:15,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:40:15,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:40:15,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:40:15,912 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:40:15,912 INFO L87 Difference]: Start difference. First operand 54138 states and 79517 transitions. Second operand has 5 states, 5 states have (on average 65.6) internal successors, (328), 5 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:16,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:40:16,379 INFO L93 Difference]: Finished difference Result 135616 states and 201298 transitions. [2024-12-02 06:40:16,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:40:16,380 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 65.6) internal successors, (328), 5 states have internal predecessors, (328), 0 states have call successors, (0), 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 328 [2024-12-02 06:40:16,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:40:16,480 INFO L225 Difference]: With dead ends: 135616 [2024-12-02 06:40:16,480 INFO L226 Difference]: Without dead ends: 122434 [2024-12-02 06:40:16,511 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:40:16,511 INFO L435 NwaCegarLoop]: 1207 mSDtfsCounter, 2728 mSDsluCounter, 1772 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2728 SdHoareTripleChecker+Valid, 2979 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:40:16,512 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2728 Valid, 2979 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:40:16,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122434 states. [2024-12-02 06:40:18,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122434 to 90622. [2024-12-02 06:40:18,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90622 states, 90621 states have (on average 1.4647267189724236) internal successors, (132735), 90621 states have internal predecessors, (132735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:18,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90622 states to 90622 states and 132735 transitions. [2024-12-02 06:40:18,619 INFO L78 Accepts]: Start accepts. Automaton has 90622 states and 132735 transitions. Word has length 328 [2024-12-02 06:40:18,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:40:18,619 INFO L471 AbstractCegarLoop]: Abstraction has 90622 states and 132735 transitions. [2024-12-02 06:40:18,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.6) internal successors, (328), 5 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:18,619 INFO L276 IsEmpty]: Start isEmpty. Operand 90622 states and 132735 transitions. [2024-12-02 06:40:18,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2024-12-02 06:40:18,683 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:40:18,684 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:40:18,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 06:40:18,684 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:40:18,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:40:18,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1548983501, now seen corresponding path program 1 times [2024-12-02 06:40:18,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:40:18,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273803120] [2024-12-02 06:40:18,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:40:18,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:40:18,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:40:19,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:40:19,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:40:19,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273803120] [2024-12-02 06:40:19,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273803120] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:40:19,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:40:19,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 06:40:19,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210454532] [2024-12-02 06:40:19,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:40:19,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 06:40:19,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:40:19,139 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 06:40:19,139 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:40:19,139 INFO L87 Difference]: Start difference. First operand 90622 states and 132735 transitions. Second operand has 6 states, 6 states have (on average 54.666666666666664) internal successors, (328), 6 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:19,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:40:19,534 INFO L93 Difference]: Finished difference Result 148254 states and 225528 transitions. [2024-12-02 06:40:19,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 06:40:19,535 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 54.666666666666664) internal successors, (328), 6 states have internal predecessors, (328), 0 states have call successors, (0), 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 328 [2024-12-02 06:40:19,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:40:19,654 INFO L225 Difference]: With dead ends: 148254 [2024-12-02 06:40:19,654 INFO L226 Difference]: Without dead ends: 142766 [2024-12-02 06:40:19,684 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-12-02 06:40:19,685 INFO L435 NwaCegarLoop]: 1253 mSDtfsCounter, 2973 mSDsluCounter, 3120 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2973 SdHoareTripleChecker+Valid, 4373 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:40:19,685 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2973 Valid, 4373 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:40:19,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142766 states. [2024-12-02 06:40:21,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142766 to 105836. [2024-12-02 06:40:21,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105836 states, 105835 states have (on average 1.479822365002126) internal successors, (156617), 105835 states have internal predecessors, (156617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:21,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105836 states to 105836 states and 156617 transitions. [2024-12-02 06:40:21,358 INFO L78 Accepts]: Start accepts. Automaton has 105836 states and 156617 transitions. Word has length 328 [2024-12-02 06:40:21,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:40:21,359 INFO L471 AbstractCegarLoop]: Abstraction has 105836 states and 156617 transitions. [2024-12-02 06:40:21,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 54.666666666666664) internal successors, (328), 6 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:21,359 INFO L276 IsEmpty]: Start isEmpty. Operand 105836 states and 156617 transitions. [2024-12-02 06:40:21,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2024-12-02 06:40:21,410 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:40:21,411 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:40:21,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 06:40:21,411 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:40:21,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:40:21,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1052515169, now seen corresponding path program 1 times [2024-12-02 06:40:21,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:40:21,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533692882] [2024-12-02 06:40:21,412 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:40:21,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:40:21,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:40:21,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:40:21,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:40:21,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533692882] [2024-12-02 06:40:21,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533692882] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:40:21,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:40:21,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:40:21,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919882366] [2024-12-02 06:40:21,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:40:21,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:40:21,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:40:21,598 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:40:21,598 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:40:21,598 INFO L87 Difference]: Start difference. First operand 105836 states and 156617 transitions. Second operand has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:22,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:40:22,188 INFO L93 Difference]: Finished difference Result 222044 states and 332657 transitions. [2024-12-02 06:40:22,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:40:22,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 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 328 [2024-12-02 06:40:22,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:40:22,298 INFO L225 Difference]: With dead ends: 222044 [2024-12-02 06:40:22,298 INFO L226 Difference]: Without dead ends: 186054 [2024-12-02 06:40:22,328 INFO L434 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 [2024-12-02 06:40:22,329 INFO L435 NwaCegarLoop]: 1037 mSDtfsCounter, 552 mSDsluCounter, 860 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 1897 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:40:22,330 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [552 Valid, 1897 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:40:22,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186054 states. [2024-12-02 06:40:25,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186054 to 186052. [2024-12-02 06:40:25,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186052 states, 186051 states have (on average 1.4730960865569118) internal successors, (274071), 186051 states have internal predecessors, (274071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:25,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186052 states to 186052 states and 274071 transitions. [2024-12-02 06:40:25,285 INFO L78 Accepts]: Start accepts. Automaton has 186052 states and 274071 transitions. Word has length 328 [2024-12-02 06:40:25,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:40:25,285 INFO L471 AbstractCegarLoop]: Abstraction has 186052 states and 274071 transitions. [2024-12-02 06:40:25,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:25,286 INFO L276 IsEmpty]: Start isEmpty. Operand 186052 states and 274071 transitions. [2024-12-02 06:40:25,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2024-12-02 06:40:25,374 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:40:25,375 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:40:25,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 06:40:25,375 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:40:25,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:40:25,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1425500303, now seen corresponding path program 1 times [2024-12-02 06:40:25,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:40:25,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611430190] [2024-12-02 06:40:25,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:40:25,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:40:25,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:40:25,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:40:25,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:40:25,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611430190] [2024-12-02 06:40:25,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611430190] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:40:25,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:40:25,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:40:25,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143231489] [2024-12-02 06:40:25,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:40:25,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:40:25,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:40:25,707 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:40:25,707 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:40:25,708 INFO L87 Difference]: Start difference. First operand 186052 states and 274071 transitions. Second operand has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:26,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:40:26,694 INFO L93 Difference]: Finished difference Result 400271 states and 597081 transitions. [2024-12-02 06:40:26,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:40:26,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 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 328 [2024-12-02 06:40:26,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:40:26,970 INFO L225 Difference]: With dead ends: 400271 [2024-12-02 06:40:26,970 INFO L226 Difference]: Without dead ends: 340845 [2024-12-02 06:40:27,009 INFO L434 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 [2024-12-02 06:40:27,009 INFO L435 NwaCegarLoop]: 1049 mSDtfsCounter, 575 mSDsluCounter, 908 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 1957 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:40:27,009 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 1957 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:40:27,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340845 states. [2024-12-02 06:40:31,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340845 to 340843. [2024-12-02 06:40:31,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340843 states, 340842 states have (on average 1.471904870878589) internal successors, (501687), 340842 states have internal predecessors, (501687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:32,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340843 states to 340843 states and 501687 transitions. [2024-12-02 06:40:32,147 INFO L78 Accepts]: Start accepts. Automaton has 340843 states and 501687 transitions. Word has length 328 [2024-12-02 06:40:32,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:40:32,148 INFO L471 AbstractCegarLoop]: Abstraction has 340843 states and 501687 transitions. [2024-12-02 06:40:32,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:32,148 INFO L276 IsEmpty]: Start isEmpty. Operand 340843 states and 501687 transitions. [2024-12-02 06:40:32,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2024-12-02 06:40:32,630 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:40:32,630 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:40:32,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 06:40:32,631 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:40:32,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:40:32,631 INFO L85 PathProgramCache]: Analyzing trace with hash 294084400, now seen corresponding path program 1 times [2024-12-02 06:40:32,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:40:32,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731593732] [2024-12-02 06:40:32,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:40:32,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:40:32,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:40:34,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:40:34,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:40:34,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731593732] [2024-12-02 06:40:34,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731593732] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:40:34,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:40:34,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 06:40:34,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112096710] [2024-12-02 06:40:34,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:40:34,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 06:40:34,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:40:34,332 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 06:40:34,333 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-12-02 06:40:34,333 INFO L87 Difference]: Start difference. First operand 340843 states and 501687 transitions. Second operand has 15 states, 15 states have (on average 21.866666666666667) internal successors, (328), 15 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:36,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:40:36,426 INFO L93 Difference]: Finished difference Result 492695 states and 727015 transitions. [2024-12-02 06:40:36,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 06:40:36,426 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 21.866666666666667) internal successors, (328), 15 states have internal predecessors, (328), 0 states have call successors, (0), 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 328 [2024-12-02 06:40:36,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:40:36,945 INFO L225 Difference]: With dead ends: 492695 [2024-12-02 06:40:36,945 INFO L226 Difference]: Without dead ends: 413829 [2024-12-02 06:40:36,984 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=187, Invalid=683, Unknown=0, NotChecked=0, Total=870 [2024-12-02 06:40:36,985 INFO L435 NwaCegarLoop]: 1068 mSDtfsCounter, 6271 mSDsluCounter, 10249 mSDsCounter, 0 mSdLazyCounter, 1613 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6271 SdHoareTripleChecker+Valid, 11317 SdHoareTripleChecker+Invalid, 1726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:40:36,985 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6271 Valid, 11317 Invalid, 1726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1613 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 06:40:37,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413829 states. [2024-12-02 06:40:41,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413829 to 357799. [2024-12-02 06:40:41,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357799 states, 357798 states have (on average 1.46708198480707) internal successors, (524919), 357798 states have internal predecessors, (524919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:42,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357799 states to 357799 states and 524919 transitions. [2024-12-02 06:40:42,144 INFO L78 Accepts]: Start accepts. Automaton has 357799 states and 524919 transitions. Word has length 328 [2024-12-02 06:40:42,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:40:42,144 INFO L471 AbstractCegarLoop]: Abstraction has 357799 states and 524919 transitions. [2024-12-02 06:40:42,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 21.866666666666667) internal successors, (328), 15 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:42,145 INFO L276 IsEmpty]: Start isEmpty. Operand 357799 states and 524919 transitions. [2024-12-02 06:40:42,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2024-12-02 06:40:42,300 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:40:42,300 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:40:42,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 06:40:42,301 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:40:42,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:40:42,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1710129849, now seen corresponding path program 1 times [2024-12-02 06:40:42,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:40:42,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455061036] [2024-12-02 06:40:42,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:40:42,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:40:42,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:40:42,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:40:42,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:40:42,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455061036] [2024-12-02 06:40:42,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455061036] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:40:42,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:40:42,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:40:42,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754896822] [2024-12-02 06:40:42,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:40:42,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:40:42,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:40:42,923 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:40:42,923 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:40:42,924 INFO L87 Difference]: Start difference. First operand 357799 states and 524919 transitions. Second operand has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:45,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:40:45,202 INFO L93 Difference]: Finished difference Result 1002885 states and 1469845 transitions. [2024-12-02 06:40:45,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:40:45,202 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 0 states have call successors, (0), 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 328 [2024-12-02 06:40:45,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:40:45,786 INFO L225 Difference]: With dead ends: 1002885 [2024-12-02 06:40:45,786 INFO L226 Difference]: Without dead ends: 646194 [2024-12-02 06:40:45,906 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:40:45,907 INFO L435 NwaCegarLoop]: 1841 mSDtfsCounter, 1947 mSDsluCounter, 1035 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1947 SdHoareTripleChecker+Valid, 2876 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:40:45,907 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1947 Valid, 2876 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:40:46,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646194 states. [2024-12-02 06:40:53,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646194 to 646192. [2024-12-02 06:40:54,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646192 states, 646191 states have (on average 1.4558605737312962) internal successors, (940764), 646191 states have internal predecessors, (940764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:55,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646192 states to 646192 states and 940764 transitions. [2024-12-02 06:40:55,532 INFO L78 Accepts]: Start accepts. Automaton has 646192 states and 940764 transitions. Word has length 328 [2024-12-02 06:40:55,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:40:55,532 INFO L471 AbstractCegarLoop]: Abstraction has 646192 states and 940764 transitions. [2024-12-02 06:40:55,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:40:55,532 INFO L276 IsEmpty]: Start isEmpty. Operand 646192 states and 940764 transitions. [2024-12-02 06:40:55,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2024-12-02 06:40:55,996 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:40:55,996 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:40:55,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 06:40:55,996 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:40:55,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:40:55,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1096679692, now seen corresponding path program 1 times [2024-12-02 06:40:55,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:40:55,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36138779] [2024-12-02 06:40:55,997 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:40:55,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:40:56,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:40:56,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:40:56,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:40:56,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36138779] [2024-12-02 06:40:56,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36138779] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:40:56,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:40:56,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:40:56,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616820312] [2024-12-02 06:40:56,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:40:56,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:40:56,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:40:56,151 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:40:56,151 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:40:56,151 INFO L87 Difference]: Start difference. First operand 646192 states and 940764 transitions. Second operand has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:41:00,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:41:00,151 INFO L93 Difference]: Finished difference Result 1873163 states and 2720104 transitions. [2024-12-02 06:41:00,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:41:00,152 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 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 330 [2024-12-02 06:41:00,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:41:01,759 INFO L225 Difference]: With dead ends: 1873163 [2024-12-02 06:41:01,759 INFO L226 Difference]: Without dead ends: 1236217 [2024-12-02 06:41:01,972 INFO L434 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 [2024-12-02 06:41:01,972 INFO L435 NwaCegarLoop]: 2086 mSDtfsCounter, 939 mSDsluCounter, 1041 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 939 SdHoareTripleChecker+Valid, 3127 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 06:41:01,972 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [939 Valid, 3127 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 06:41:02,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1236217 states. [2024-12-02 06:41:19,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1236217 to 1235707. [2024-12-02 06:41:20,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1235707 states, 1235706 states have (on average 1.4420857388407922) internal successors, (1781994), 1235706 states have internal predecessors, (1781994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:41:22,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1235707 states to 1235707 states and 1781994 transitions. [2024-12-02 06:41:22,831 INFO L78 Accepts]: Start accepts. Automaton has 1235707 states and 1781994 transitions. Word has length 330 [2024-12-02 06:41:22,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:41:22,832 INFO L471 AbstractCegarLoop]: Abstraction has 1235707 states and 1781994 transitions. [2024-12-02 06:41:22,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:41:22,832 INFO L276 IsEmpty]: Start isEmpty. Operand 1235707 states and 1781994 transitions. [2024-12-02 06:41:23,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2024-12-02 06:41:23,543 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:41:23,543 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:41:23,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 06:41:23,543 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:41:23,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:41:23,544 INFO L85 PathProgramCache]: Analyzing trace with hash 619013039, now seen corresponding path program 1 times [2024-12-02 06:41:23,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:41:23,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713255042] [2024-12-02 06:41:23,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:41:23,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:41:23,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:41:24,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:41:24,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:41:24,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713255042] [2024-12-02 06:41:24,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713255042] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:41:24,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:41:24,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:41:24,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451432107] [2024-12-02 06:41:24,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:41:24,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:41:24,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:41:24,166 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:41:24,166 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:41:24,167 INFO L87 Difference]: Start difference. First operand 1235707 states and 1781994 transitions. Second operand has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)