./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.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_3b25483e-2eae-42b9-b589-810411af4a60/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b25483e-2eae-42b9-b589-810411af4a60/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_3b25483e-2eae-42b9-b589-810411af4a60/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b25483e-2eae-42b9-b589-810411af4a60/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b25483e-2eae-42b9-b589-810411af4a60/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_3b25483e-2eae-42b9-b589-810411af4a60/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 53c628562139f348a432948065ec43f1ca859b0a402aa2530432925237a49f95 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 10:35:08,515 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 10:35:08,576 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b25483e-2eae-42b9-b589-810411af4a60/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 10:35:08,581 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 10:35:08,581 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 10:35:08,604 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 10:35:08,605 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 10:35:08,605 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 10:35:08,605 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 10:35:08,605 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 10:35:08,605 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 10:35:08,606 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 10:35:08,606 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 10:35:08,606 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 10:35:08,606 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 10:35:08,606 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 10:35:08,606 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 10:35:08,606 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 10:35:08,606 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 10:35:08,607 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 10:35:08,607 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 10:35:08,607 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 10:35:08,607 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 10:35:08,607 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 10:35:08,607 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 10:35:08,607 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 10:35:08,607 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 10:35:08,607 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 10:35:08,607 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 10:35:08,607 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:35:08,607 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:35:08,608 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:35:08,608 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:35:08,608 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 10:35:08,608 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:35:08,608 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:35:08,608 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:35:08,608 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:35:08,608 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 10:35:08,608 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 10:35:08,608 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 10:35:08,609 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 10:35:08,609 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 10:35:08,609 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 10:35:08,609 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 10:35:08,609 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 10:35:08,609 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 10:35:08,609 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 10:35:08,609 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_3b25483e-2eae-42b9-b589-810411af4a60/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 -> 53c628562139f348a432948065ec43f1ca859b0a402aa2530432925237a49f95 [2024-12-02 10:35:08,849 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 10:35:08,858 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 10:35:08,860 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 10:35:08,861 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 10:35:08,861 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 10:35:08,863 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b25483e-2eae-42b9-b589-810411af4a60/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2024-12-02 10:35:11,467 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b25483e-2eae-42b9-b589-810411af4a60/bin/uautomizer-verify-84ZbGMXZE1/data/60fcf06a2/f98c45a66e5745e293afff14a0524e82/FLAG50552474d [2024-12-02 10:35:11,765 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 10:35:11,765 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b25483e-2eae-42b9-b589-810411af4a60/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2024-12-02 10:35:11,783 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b25483e-2eae-42b9-b589-810411af4a60/bin/uautomizer-verify-84ZbGMXZE1/data/60fcf06a2/f98c45a66e5745e293afff14a0524e82/FLAG50552474d [2024-12-02 10:35:12,035 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b25483e-2eae-42b9-b589-810411af4a60/bin/uautomizer-verify-84ZbGMXZE1/data/60fcf06a2/f98c45a66e5745e293afff14a0524e82 [2024-12-02 10:35:12,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 10:35:12,038 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 10:35:12,039 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 10:35:12,039 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 10:35:12,043 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 10:35:12,043 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:35:12" (1/1) ... [2024-12-02 10:35:12,044 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7eaaf828 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:12, skipping insertion in model container [2024-12-02 10:35:12,044 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:35:12" (1/1) ... [2024-12-02 10:35:12,104 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 10:35:12,600 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_3b25483e-2eae-42b9-b589-810411af4a60/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c[34889,34902] [2024-12-02 10:35:12,757 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:35:12,771 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 10:35:13,048 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_3b25483e-2eae-42b9-b589-810411af4a60/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c[34889,34902] [2024-12-02 10:35:13,182 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:35:13,198 INFO L204 MainTranslator]: Completed translation [2024-12-02 10:35:13,198 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:13 WrapperNode [2024-12-02 10:35:13,198 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 10:35:13,199 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 10:35:13,199 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 10:35:13,199 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 10:35:13,204 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:13" (1/1) ... [2024-12-02 10:35:13,226 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:13" (1/1) ... [2024-12-02 10:35:13,304 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 3057 [2024-12-02 10:35:13,305 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 10:35:13,305 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 10:35:13,305 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 10:35:13,306 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 10:35:13,316 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:13" (1/1) ... [2024-12-02 10:35:13,317 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:13" (1/1) ... [2024-12-02 10:35:13,326 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:13" (1/1) ... [2024-12-02 10:35:13,357 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 10:35:13,357 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:13" (1/1) ... [2024-12-02 10:35:13,358 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:13" (1/1) ... [2024-12-02 10:35:13,384 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:13" (1/1) ... [2024-12-02 10:35:13,388 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:13" (1/1) ... [2024-12-02 10:35:13,405 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:13" (1/1) ... [2024-12-02 10:35:13,414 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:13" (1/1) ... [2024-12-02 10:35:13,423 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:13" (1/1) ... [2024-12-02 10:35:13,435 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 10:35:13,436 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 10:35:13,437 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 10:35:13,437 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 10:35:13,438 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:13" (1/1) ... [2024-12-02 10:35:13,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:35:13,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b25483e-2eae-42b9-b589-810411af4a60/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:35:13,472 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b25483e-2eae-42b9-b589-810411af4a60/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 10:35:13,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b25483e-2eae-42b9-b589-810411af4a60/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 10:35:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 10:35:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 10:35:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 10:35:13,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 10:35:13,672 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 10:35:13,674 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 10:35:16,280 INFO L? ?]: Removed 210 outVars from TransFormulas that were not future-live. [2024-12-02 10:35:16,281 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 10:35:16,312 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 10:35:16,312 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 10:35:16,313 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:35:16 BoogieIcfgContainer [2024-12-02 10:35:16,313 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 10:35:16,316 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 10:35:16,316 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 10:35:16,322 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 10:35:16,322 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:35:12" (1/3) ... [2024-12-02 10:35:16,322 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ac2ead6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:35:16, skipping insertion in model container [2024-12-02 10:35:16,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:13" (2/3) ... [2024-12-02 10:35:16,323 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ac2ead6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:35:16, skipping insertion in model container [2024-12-02 10:35:16,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:35:16" (3/3) ... [2024-12-02 10:35:16,324 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2024-12-02 10:35:16,342 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 10:35:16,345 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_opt-floodmax.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c that has 1 procedures, 778 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-12-02 10:35:16,438 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 10:35:16,451 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;@6c006d0a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 10:35:16,451 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 10:35:16,460 INFO L276 IsEmpty]: Start isEmpty. Operand has 778 states, 776 states have (on average 1.7796391752577319) internal successors, (1381), 777 states have internal predecessors, (1381), 0 states have call successors, (0), 0 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 10:35:16,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2024-12-02 10:35:16,484 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:16,485 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 10:35:16,485 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:35:16,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:16,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1694384253, now seen corresponding path program 1 times [2024-12-02 10:35:16,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:16,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558435513] [2024-12-02 10:35:16,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:16,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:16,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:17,443 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 10:35:17,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:17,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558435513] [2024-12-02 10:35:17,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558435513] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:17,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:35:17,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:35:17,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045264960] [2024-12-02 10:35:17,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:17,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:35:17,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:17,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:35:17,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:35:17,474 INFO L87 Difference]: Start difference. First operand has 778 states, 776 states have (on average 1.7796391752577319) internal successors, (1381), 777 states have internal predecessors, (1381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 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 10:35:17,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:17,805 INFO L93 Difference]: Finished difference Result 1471 states and 2590 transitions. [2024-12-02 10:35:17,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:35:17,807 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 10:35:17,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:17,826 INFO L225 Difference]: With dead ends: 1471 [2024-12-02 10:35:17,826 INFO L226 Difference]: Without dead ends: 1268 [2024-12-02 10:35:17,831 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 10:35:17,833 INFO L435 NwaCegarLoop]: 1320 mSDtfsCounter, 858 mSDsluCounter, 1101 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 858 SdHoareTripleChecker+Valid, 2421 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:35:17,834 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [858 Valid, 2421 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:35:17,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1268 states. [2024-12-02 10:35:17,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1268 to 1266. [2024-12-02 10:35:17,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1266 states, 1265 states have (on average 1.5723320158102767) internal successors, (1989), 1265 states have internal predecessors, (1989), 0 states have call successors, (0), 0 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 10:35:17,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 1989 transitions. [2024-12-02 10:35:17,927 INFO L78 Accepts]: Start accepts. Automaton has 1266 states and 1989 transitions. Word has length 308 [2024-12-02 10:35:17,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:17,929 INFO L471 AbstractCegarLoop]: Abstraction has 1266 states and 1989 transitions. [2024-12-02 10:35:17,929 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 10:35:17,929 INFO L276 IsEmpty]: Start isEmpty. Operand 1266 states and 1989 transitions. [2024-12-02 10:35:17,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2024-12-02 10:35:17,937 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:17,937 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 10:35:17,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 10:35:17,938 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:35:17,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:17,939 INFO L85 PathProgramCache]: Analyzing trace with hash -919786699, now seen corresponding path program 1 times [2024-12-02 10:35:17,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:17,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005695500] [2024-12-02 10:35:17,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:17,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:18,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:18,467 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 10:35:18,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:18,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005695500] [2024-12-02 10:35:18,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005695500] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:18,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:35:18,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:35:18,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698219678] [2024-12-02 10:35:18,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:18,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:35:18,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:18,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:35:18,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:35:18,471 INFO L87 Difference]: Start difference. First operand 1266 states and 1989 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 10:35:18,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:18,671 INFO L93 Difference]: Finished difference Result 2596 states and 4102 transitions. [2024-12-02 10:35:18,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:35:18,672 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 10:35:18,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:18,683 INFO L225 Difference]: With dead ends: 2596 [2024-12-02 10:35:18,683 INFO L226 Difference]: Without dead ends: 2232 [2024-12-02 10:35:18,685 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 10:35:18,686 INFO L435 NwaCegarLoop]: 1160 mSDtfsCounter, 707 mSDsluCounter, 977 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 707 SdHoareTripleChecker+Valid, 2137 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 10:35:18,687 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [707 Valid, 2137 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:35:18,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2232 states. [2024-12-02 10:35:18,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2232 to 2230. [2024-12-02 10:35:18,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2230 states, 2229 states have (on average 1.5661731718259309) internal successors, (3491), 2229 states have internal predecessors, (3491), 0 states have call successors, (0), 0 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 10:35:18,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2230 states to 2230 states and 3491 transitions. [2024-12-02 10:35:18,771 INFO L78 Accepts]: Start accepts. Automaton has 2230 states and 3491 transitions. Word has length 308 [2024-12-02 10:35:18,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:18,771 INFO L471 AbstractCegarLoop]: Abstraction has 2230 states and 3491 transitions. [2024-12-02 10:35:18,772 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 10:35:18,772 INFO L276 IsEmpty]: Start isEmpty. Operand 2230 states and 3491 transitions. [2024-12-02 10:35:18,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2024-12-02 10:35:18,779 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:18,780 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 10:35:18,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 10:35:18,780 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:35:18,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:18,781 INFO L85 PathProgramCache]: Analyzing trace with hash 508548576, now seen corresponding path program 1 times [2024-12-02 10:35:18,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:18,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215910307] [2024-12-02 10:35:18,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:18,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:18,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:19,299 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 10:35:19,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:19,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215910307] [2024-12-02 10:35:19,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215910307] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:19,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:35:19,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:35:19,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915664155] [2024-12-02 10:35:19,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:19,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:35:19,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:19,301 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:35:19,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:35:19,302 INFO L87 Difference]: Start difference. First operand 2230 states and 3491 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 10:35:19,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:19,513 INFO L93 Difference]: Finished difference Result 4726 states and 7445 transitions. [2024-12-02 10:35:19,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:35:19,515 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 10:35:19,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:19,534 INFO L225 Difference]: With dead ends: 4726 [2024-12-02 10:35:19,534 INFO L226 Difference]: Without dead ends: 4088 [2024-12-02 10:35:19,536 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 10:35:19,537 INFO L435 NwaCegarLoop]: 1160 mSDtfsCounter, 691 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 2109 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 10:35:19,537 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [691 Valid, 2109 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:35:19,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4088 states. [2024-12-02 10:35:19,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4088 to 4086. [2024-12-02 10:35:19,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4086 states, 4085 states have (on average 1.559608323133415) internal successors, (6371), 4085 states have internal predecessors, (6371), 0 states have call successors, (0), 0 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 10:35:19,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4086 states to 4086 states and 6371 transitions. [2024-12-02 10:35:19,675 INFO L78 Accepts]: Start accepts. Automaton has 4086 states and 6371 transitions. Word has length 308 [2024-12-02 10:35:19,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:19,676 INFO L471 AbstractCegarLoop]: Abstraction has 4086 states and 6371 transitions. [2024-12-02 10:35:19,676 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 10:35:19,677 INFO L276 IsEmpty]: Start isEmpty. Operand 4086 states and 6371 transitions. [2024-12-02 10:35:19,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2024-12-02 10:35:19,686 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:19,687 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 10:35:19,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 10:35:19,687 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:35:19,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:19,688 INFO L85 PathProgramCache]: Analyzing trace with hash 678875761, now seen corresponding path program 1 times [2024-12-02 10:35:19,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:19,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926961927] [2024-12-02 10:35:19,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:19,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:20,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:20,989 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 10:35:20,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:20,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926961927] [2024-12-02 10:35:20,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926961927] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:20,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:35:20,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:35:20,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139180587] [2024-12-02 10:35:20,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:20,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:35:20,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:20,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:35:20,992 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:35:20,992 INFO L87 Difference]: Start difference. First operand 4086 states and 6371 transitions. Second operand has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 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 10:35:21,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:21,326 INFO L93 Difference]: Finished difference Result 20062 states and 31232 transitions. [2024-12-02 10:35:21,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:35:21,327 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 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 10:35:21,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:21,364 INFO L225 Difference]: With dead ends: 20062 [2024-12-02 10:35:21,364 INFO L226 Difference]: Without dead ends: 15987 [2024-12-02 10:35:21,373 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:35:21,374 INFO L435 NwaCegarLoop]: 1850 mSDtfsCounter, 3892 mSDsluCounter, 2974 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3892 SdHoareTripleChecker+Valid, 4824 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:35:21,375 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3892 Valid, 4824 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:35:21,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15987 states. [2024-12-02 10:35:21,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15987 to 8006. [2024-12-02 10:35:21,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8006 states, 8005 states have (on average 1.5500312304809494) internal successors, (12408), 8005 states have internal predecessors, (12408), 0 states have call successors, (0), 0 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 10:35:21,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8006 states to 8006 states and 12408 transitions. [2024-12-02 10:35:21,608 INFO L78 Accepts]: Start accepts. Automaton has 8006 states and 12408 transitions. Word has length 308 [2024-12-02 10:35:21,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:21,608 INFO L471 AbstractCegarLoop]: Abstraction has 8006 states and 12408 transitions. [2024-12-02 10:35:21,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 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 10:35:21,608 INFO L276 IsEmpty]: Start isEmpty. Operand 8006 states and 12408 transitions. [2024-12-02 10:35:21,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2024-12-02 10:35:21,616 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:21,616 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 10:35:21,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 10:35:21,616 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:35:21,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:21,617 INFO L85 PathProgramCache]: Analyzing trace with hash -2007211620, now seen corresponding path program 1 times [2024-12-02 10:35:21,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:21,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839488412] [2024-12-02 10:35:21,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:21,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:21,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:21,796 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 10:35:21,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:21,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839488412] [2024-12-02 10:35:21,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839488412] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:21,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:35:21,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:35:21,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284983022] [2024-12-02 10:35:21,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:21,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:35:21,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:21,798 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:35:21,798 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:35:21,798 INFO L87 Difference]: Start difference. First operand 8006 states and 12408 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 10:35:21,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:21,993 INFO L93 Difference]: Finished difference Result 23981 states and 37161 transitions. [2024-12-02 10:35:21,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:35:21,994 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 10:35:21,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:22,034 INFO L225 Difference]: With dead ends: 23981 [2024-12-02 10:35:22,034 INFO L226 Difference]: Without dead ends: 15996 [2024-12-02 10:35:22,044 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 10:35:22,045 INFO L435 NwaCegarLoop]: 2418 mSDtfsCounter, 1206 mSDsluCounter, 1207 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1206 SdHoareTripleChecker+Valid, 3625 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 10:35:22,045 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1206 Valid, 3625 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:35:22,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15996 states. [2024-12-02 10:35:22,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15996 to 8019. [2024-12-02 10:35:22,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8019 states, 8018 states have (on average 1.5498877525567474) internal successors, (12427), 8018 states have internal predecessors, (12427), 0 states have call successors, (0), 0 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 10:35:22,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8019 states to 8019 states and 12427 transitions. [2024-12-02 10:35:22,284 INFO L78 Accepts]: Start accepts. Automaton has 8019 states and 12427 transitions. Word has length 310 [2024-12-02 10:35:22,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:22,284 INFO L471 AbstractCegarLoop]: Abstraction has 8019 states and 12427 transitions. [2024-12-02 10:35:22,284 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 10:35:22,284 INFO L276 IsEmpty]: Start isEmpty. Operand 8019 states and 12427 transitions. [2024-12-02 10:35:22,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2024-12-02 10:35:22,290 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:22,290 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 10:35:22,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 10:35:22,291 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:35:22,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:22,291 INFO L85 PathProgramCache]: Analyzing trace with hash 581744279, now seen corresponding path program 1 times [2024-12-02 10:35:22,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:22,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194074297] [2024-12-02 10:35:22,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:22,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:22,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:22,436 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 10:35:22,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:22,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194074297] [2024-12-02 10:35:22,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194074297] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:22,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:35:22,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:35:22,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235680606] [2024-12-02 10:35:22,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:22,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:35:22,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:22,438 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:35:22,438 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:35:22,438 INFO L87 Difference]: Start difference. First operand 8019 states and 12427 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 10:35:22,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:22,569 INFO L93 Difference]: Finished difference Result 23594 states and 36496 transitions. [2024-12-02 10:35:22,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:35:22,570 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 10:35:22,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:22,589 INFO L225 Difference]: With dead ends: 23594 [2024-12-02 10:35:22,589 INFO L226 Difference]: Without dead ends: 15713 [2024-12-02 10:35:22,597 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 10:35:22,598 INFO L435 NwaCegarLoop]: 2363 mSDtfsCounter, 1090 mSDsluCounter, 1156 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1090 SdHoareTripleChecker+Valid, 3519 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 10:35:22,598 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1090 Valid, 3519 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:35:22,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15713 states. [2024-12-02 10:35:22,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15713 to 15711. [2024-12-02 10:35:22,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15711 states, 15710 states have (on average 1.5404837683004455) internal successors, (24201), 15710 states have internal predecessors, (24201), 0 states have call successors, (0), 0 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 10:35:22,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15711 states to 15711 states and 24201 transitions. [2024-12-02 10:35:22,969 INFO L78 Accepts]: Start accepts. Automaton has 15711 states and 24201 transitions. Word has length 310 [2024-12-02 10:35:22,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:22,969 INFO L471 AbstractCegarLoop]: Abstraction has 15711 states and 24201 transitions. [2024-12-02 10:35:22,970 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 10:35:22,970 INFO L276 IsEmpty]: Start isEmpty. Operand 15711 states and 24201 transitions. [2024-12-02 10:35:22,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2024-12-02 10:35:22,987 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:22,987 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] [2024-12-02 10:35:22,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 10:35:22,988 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:35:22,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:22,988 INFO L85 PathProgramCache]: Analyzing trace with hash 710479745, now seen corresponding path program 1 times [2024-12-02 10:35:22,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:22,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777150649] [2024-12-02 10:35:22,988 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:22,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:23,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:23,153 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 10:35:23,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:23,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777150649] [2024-12-02 10:35:23,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777150649] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:23,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:35:23,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:35:23,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121016708] [2024-12-02 10:35:23,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:23,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:35:23,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:23,155 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:35:23,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:35:23,155 INFO L87 Difference]: Start difference. First operand 15711 states and 24201 transitions. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 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 10:35:23,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:23,261 INFO L93 Difference]: Finished difference Result 31384 states and 48335 transitions. [2024-12-02 10:35:23,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:35:23,262 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 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 311 [2024-12-02 10:35:23,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:23,348 INFO L225 Difference]: With dead ends: 31384 [2024-12-02 10:35:23,348 INFO L226 Difference]: Without dead ends: 15729 [2024-12-02 10:35:23,359 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 10:35:23,360 INFO L435 NwaCegarLoop]: 1229 mSDtfsCounter, 5 mSDsluCounter, 1215 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2444 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 10:35:23,360 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2444 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:35:23,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15729 states. [2024-12-02 10:35:23,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15729 to 15729. [2024-12-02 10:35:23,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15729 states, 15728 states have (on average 1.5400559511698881) internal successors, (24222), 15728 states have internal predecessors, (24222), 0 states have call successors, (0), 0 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 10:35:23,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15729 states to 15729 states and 24222 transitions. [2024-12-02 10:35:23,606 INFO L78 Accepts]: Start accepts. Automaton has 15729 states and 24222 transitions. Word has length 311 [2024-12-02 10:35:23,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:23,606 INFO L471 AbstractCegarLoop]: Abstraction has 15729 states and 24222 transitions. [2024-12-02 10:35:23,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 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 10:35:23,606 INFO L276 IsEmpty]: Start isEmpty. Operand 15729 states and 24222 transitions. [2024-12-02 10:35:23,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2024-12-02 10:35:23,624 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:23,624 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 10:35:23,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 10:35:23,624 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:35:23,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:23,625 INFO L85 PathProgramCache]: Analyzing trace with hash -548992078, now seen corresponding path program 1 times [2024-12-02 10:35:23,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:23,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140085827] [2024-12-02 10:35:23,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:23,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:23,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:23,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:35:23,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:23,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140085827] [2024-12-02 10:35:23,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140085827] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:23,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:35:23,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:35:23,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413457047] [2024-12-02 10:35:23,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:23,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:35:23,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:23,841 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:35:23,841 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:35:23,842 INFO L87 Difference]: Start difference. First operand 15729 states and 24222 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 10:35:24,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:24,104 INFO L93 Difference]: Finished difference Result 44554 states and 68467 transitions. [2024-12-02 10:35:24,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:35:24,104 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 10:35:24,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:24,157 INFO L225 Difference]: With dead ends: 44554 [2024-12-02 10:35:24,157 INFO L226 Difference]: Without dead ends: 29066 [2024-12-02 10:35:24,169 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 10:35:24,169 INFO L435 NwaCegarLoop]: 2370 mSDtfsCounter, 1084 mSDsluCounter, 1156 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1084 SdHoareTripleChecker+Valid, 3526 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 10:35:24,170 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1084 Valid, 3526 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:35:24,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29066 states. [2024-12-02 10:35:24,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29066 to 29064. [2024-12-02 10:35:24,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29064 states, 29063 states have (on average 1.5290231565908543) internal successors, (44438), 29063 states have internal predecessors, (44438), 0 states have call successors, (0), 0 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 10:35:24,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29064 states to 29064 states and 44438 transitions. [2024-12-02 10:35:24,690 INFO L78 Accepts]: Start accepts. Automaton has 29064 states and 44438 transitions. Word has length 312 [2024-12-02 10:35:24,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:24,690 INFO L471 AbstractCegarLoop]: Abstraction has 29064 states and 44438 transitions. [2024-12-02 10:35:24,690 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 10:35:24,690 INFO L276 IsEmpty]: Start isEmpty. Operand 29064 states and 44438 transitions. [2024-12-02 10:35:24,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2024-12-02 10:35:24,734 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:24,734 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 10:35:24,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 10:35:24,734 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:35:24,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:24,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1480696305, now seen corresponding path program 1 times [2024-12-02 10:35:24,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:24,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583197270] [2024-12-02 10:35:24,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:24,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:25,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:25,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:35:25,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:25,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583197270] [2024-12-02 10:35:25,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583197270] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:25,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:35:25,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:35:25,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287705031] [2024-12-02 10:35:25,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:25,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:35:25,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:25,872 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:35:25,872 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:35:25,872 INFO L87 Difference]: Start difference. First operand 29064 states and 44438 transitions. Second operand has 5 states, 5 states have (on average 62.4) internal successors, (312), 5 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 10:35:26,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:26,398 INFO L93 Difference]: Finished difference Result 142334 states and 217208 transitions. [2024-12-02 10:35:26,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:35:26,399 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 62.4) internal successors, (312), 5 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 10:35:26,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:26,618 INFO L225 Difference]: With dead ends: 142334 [2024-12-02 10:35:26,618 INFO L226 Difference]: Without dead ends: 113325 [2024-12-02 10:35:26,644 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 10:35:26,644 INFO L435 NwaCegarLoop]: 2816 mSDtfsCounter, 4552 mSDsluCounter, 3617 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4552 SdHoareTripleChecker+Valid, 6433 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:35:26,644 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4552 Valid, 6433 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:35:26,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113325 states. [2024-12-02 10:35:27,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113325 to 56709. [2024-12-02 10:35:27,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56709 states, 56708 states have (on average 1.5177223672145024) internal successors, (86067), 56708 states have internal predecessors, (86067), 0 states have call successors, (0), 0 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 10:35:27,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56709 states to 56709 states and 86067 transitions. [2024-12-02 10:35:27,646 INFO L78 Accepts]: Start accepts. Automaton has 56709 states and 86067 transitions. Word has length 312 [2024-12-02 10:35:27,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:27,647 INFO L471 AbstractCegarLoop]: Abstraction has 56709 states and 86067 transitions. [2024-12-02 10:35:27,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 62.4) internal successors, (312), 5 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 10:35:27,647 INFO L276 IsEmpty]: Start isEmpty. Operand 56709 states and 86067 transitions. [2024-12-02 10:35:27,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2024-12-02 10:35:27,669 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:27,669 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 10:35:27,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 10:35:27,670 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:35:27,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:27,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1121733143, now seen corresponding path program 1 times [2024-12-02 10:35:27,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:27,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635872720] [2024-12-02 10:35:27,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:27,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:27,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:28,403 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 10:35:28,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:28,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635872720] [2024-12-02 10:35:28,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635872720] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:28,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:35:28,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:35:28,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147612998] [2024-12-02 10:35:28,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:28,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:35:28,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:28,405 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:35:28,405 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:35:28,406 INFO L87 Difference]: Start difference. First operand 56709 states and 86067 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 10:35:28,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:28,785 INFO L93 Difference]: Finished difference Result 168760 states and 255820 transitions. [2024-12-02 10:35:28,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:35:28,785 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 10:35:28,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:28,876 INFO L225 Difference]: With dead ends: 168760 [2024-12-02 10:35:28,876 INFO L226 Difference]: Without dead ends: 112856 [2024-12-02 10:35:28,916 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 10:35:28,916 INFO L435 NwaCegarLoop]: 2378 mSDtfsCounter, 1171 mSDsluCounter, 3585 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1171 SdHoareTripleChecker+Valid, 5963 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 10:35:28,917 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1171 Valid, 5963 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:35:28,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112856 states. [2024-12-02 10:35:29,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112856 to 57144. [2024-12-02 10:35:29,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57144 states, 57143 states have (on average 1.518541203646991) internal successors, (86774), 57143 states have internal predecessors, (86774), 0 states have call successors, (0), 0 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 10:35:29,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57144 states to 57144 states and 86774 transitions. [2024-12-02 10:35:29,866 INFO L78 Accepts]: Start accepts. Automaton has 57144 states and 86774 transitions. Word has length 314 [2024-12-02 10:35:29,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:29,866 INFO L471 AbstractCegarLoop]: Abstraction has 57144 states and 86774 transitions. [2024-12-02 10:35:29,867 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 10:35:29,867 INFO L276 IsEmpty]: Start isEmpty. Operand 57144 states and 86774 transitions. [2024-12-02 10:35:29,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2024-12-02 10:35:29,891 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:29,891 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 10:35:29,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 10:35:29,892 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:35:29,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:29,892 INFO L85 PathProgramCache]: Analyzing trace with hash -573373880, now seen corresponding path program 1 times [2024-12-02 10:35:29,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:29,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779895820] [2024-12-02 10:35:29,892 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:29,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:29,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:29,999 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 10:35:30,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:30,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779895820] [2024-12-02 10:35:30,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779895820] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:30,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:35:30,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:35:30,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129465121] [2024-12-02 10:35:30,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:30,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:35:30,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:30,001 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:35:30,001 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:35:30,001 INFO L87 Difference]: Start difference. First operand 57144 states and 86774 transitions. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 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 10:35:30,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:30,293 INFO L93 Difference]: Finished difference Result 145798 states and 222922 transitions. [2024-12-02 10:35:30,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:35:30,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 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 10:35:30,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:30,358 INFO L225 Difference]: With dead ends: 145798 [2024-12-02 10:35:30,358 INFO L226 Difference]: Without dead ends: 91682 [2024-12-02 10:35:30,388 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 10:35:30,389 INFO L435 NwaCegarLoop]: 1697 mSDtfsCounter, 684 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 684 SdHoareTripleChecker+Valid, 2677 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:35:30,389 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [684 Valid, 2677 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:35:30,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91682 states. [2024-12-02 10:35:31,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91682 to 71560. [2024-12-02 10:35:31,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71560 states, 71559 states have (on average 1.5429785212202518) internal successors, (110414), 71559 states have internal predecessors, (110414), 0 states have call successors, (0), 0 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 10:35:31,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71560 states to 71560 states and 110414 transitions. [2024-12-02 10:35:31,463 INFO L78 Accepts]: Start accepts. Automaton has 71560 states and 110414 transitions. Word has length 316 [2024-12-02 10:35:31,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:31,463 INFO L471 AbstractCegarLoop]: Abstraction has 71560 states and 110414 transitions. [2024-12-02 10:35:31,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 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 10:35:31,463 INFO L276 IsEmpty]: Start isEmpty. Operand 71560 states and 110414 transitions. [2024-12-02 10:35:31,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2024-12-02 10:35:31,487 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:31,487 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 10:35:31,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 10:35:31,487 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:35:31,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:31,487 INFO L85 PathProgramCache]: Analyzing trace with hash -352657424, now seen corresponding path program 1 times [2024-12-02 10:35:31,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:31,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052089399] [2024-12-02 10:35:31,488 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:31,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:31,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:31,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:35:31,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:31,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052089399] [2024-12-02 10:35:31,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052089399] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:31,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:35:31,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:35:31,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139427271] [2024-12-02 10:35:31,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:31,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:35:31,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:31,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:35:31,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:35:31,588 INFO L87 Difference]: Start difference. First operand 71560 states and 110414 transitions. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 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 10:35:32,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:32,187 INFO L93 Difference]: Finished difference Result 212150 states and 326881 transitions. [2024-12-02 10:35:32,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:35:32,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 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 10:35:32,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:32,294 INFO L225 Difference]: With dead ends: 212150 [2024-12-02 10:35:32,295 INFO L226 Difference]: Without dead ends: 141890 [2024-12-02 10:35:32,333 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 10:35:32,333 INFO L435 NwaCegarLoop]: 2280 mSDtfsCounter, 1071 mSDsluCounter, 1203 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1071 SdHoareTripleChecker+Valid, 3483 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 10:35:32,334 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1071 Valid, 3483 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:35:32,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141890 states. [2024-12-02 10:35:33,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141890 to 71762. [2024-12-02 10:35:33,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71762 states, 71761 states have (on average 1.5424952272125527) internal successors, (110691), 71761 states have internal predecessors, (110691), 0 states have call successors, (0), 0 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 10:35:33,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71762 states to 71762 states and 110691 transitions. [2024-12-02 10:35:33,755 INFO L78 Accepts]: Start accepts. Automaton has 71762 states and 110691 transitions. Word has length 316 [2024-12-02 10:35:33,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:33,755 INFO L471 AbstractCegarLoop]: Abstraction has 71762 states and 110691 transitions. [2024-12-02 10:35:33,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 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 10:35:33,756 INFO L276 IsEmpty]: Start isEmpty. Operand 71762 states and 110691 transitions. [2024-12-02 10:35:33,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2024-12-02 10:35:33,778 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:33,778 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] [2024-12-02 10:35:33,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 10:35:33,778 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:35:33,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:33,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1899621099, now seen corresponding path program 1 times [2024-12-02 10:35:33,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:33,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801671355] [2024-12-02 10:35:33,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:33,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:33,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:33,875 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 10:35:33,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:33,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801671355] [2024-12-02 10:35:33,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801671355] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:33,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:35:33,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:35:33,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63746121] [2024-12-02 10:35:33,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:33,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:35:33,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:33,877 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:35:33,877 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:35:33,877 INFO L87 Difference]: Start difference. First operand 71762 states and 110691 transitions. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 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 10:35:34,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:34,148 INFO L93 Difference]: Finished difference Result 142278 states and 219238 transitions. [2024-12-02 10:35:34,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:35:34,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 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 317 [2024-12-02 10:35:34,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:34,203 INFO L225 Difference]: With dead ends: 142278 [2024-12-02 10:35:34,203 INFO L226 Difference]: Without dead ends: 72005 [2024-12-02 10:35:34,237 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 10:35:34,238 INFO L435 NwaCegarLoop]: 1227 mSDtfsCounter, 5 mSDsluCounter, 1211 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2438 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 10:35:34,238 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2438 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:35:34,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72005 states. [2024-12-02 10:35:35,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72005 to 72005. [2024-12-02 10:35:35,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72005 states, 72004 states have (on average 1.5412199322259874) internal successors, (110974), 72004 states have internal predecessors, (110974), 0 states have call successors, (0), 0 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 10:35:35,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72005 states to 72005 states and 110974 transitions. [2024-12-02 10:35:35,460 INFO L78 Accepts]: Start accepts. Automaton has 72005 states and 110974 transitions. Word has length 317 [2024-12-02 10:35:35,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:35,460 INFO L471 AbstractCegarLoop]: Abstraction has 72005 states and 110974 transitions. [2024-12-02 10:35:35,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 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 10:35:35,460 INFO L276 IsEmpty]: Start isEmpty. Operand 72005 states and 110974 transitions. [2024-12-02 10:35:35,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2024-12-02 10:35:35,500 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:35,500 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] [2024-12-02 10:35:35,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 10:35:35,500 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:35:35,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:35,501 INFO L85 PathProgramCache]: Analyzing trace with hash -801747613, now seen corresponding path program 1 times [2024-12-02 10:35:35,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:35,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511031649] [2024-12-02 10:35:35,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:35,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:35,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:36,225 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 10:35:36,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:36,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511031649] [2024-12-02 10:35:36,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511031649] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:36,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:35:36,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:35:36,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062715323] [2024-12-02 10:35:36,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:36,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:35:36,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:36,227 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:35:36,227 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:35:36,228 INFO L87 Difference]: Start difference. First operand 72005 states and 110974 transitions. Second operand has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 0 states have call successors, (0), 0 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 10:35:36,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:36,747 INFO L93 Difference]: Finished difference Result 214148 states and 329867 transitions. [2024-12-02 10:35:36,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:35:36,748 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 0 states have call successors, (0), 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 318 [2024-12-02 10:35:36,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:37,083 INFO L225 Difference]: With dead ends: 214148 [2024-12-02 10:35:37,083 INFO L226 Difference]: Without dead ends: 143426 [2024-12-02 10:35:37,112 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 10:35:37,112 INFO L435 NwaCegarLoop]: 2401 mSDtfsCounter, 1161 mSDsluCounter, 3605 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 6006 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:35:37,113 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1161 Valid, 6006 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:35:37,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143426 states. [2024-12-02 10:35:37,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143426 to 72774. [2024-12-02 10:35:37,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72774 states, 72773 states have (on average 1.5429211383342722) internal successors, (112283), 72773 states have internal predecessors, (112283), 0 states have call successors, (0), 0 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 10:35:38,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72774 states to 72774 states and 112283 transitions. [2024-12-02 10:35:38,020 INFO L78 Accepts]: Start accepts. Automaton has 72774 states and 112283 transitions. Word has length 318 [2024-12-02 10:35:38,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:38,021 INFO L471 AbstractCegarLoop]: Abstraction has 72774 states and 112283 transitions. [2024-12-02 10:35:38,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 0 states have call successors, (0), 0 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 10:35:38,021 INFO L276 IsEmpty]: Start isEmpty. Operand 72774 states and 112283 transitions. [2024-12-02 10:35:38,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2024-12-02 10:35:38,043 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:38,044 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] [2024-12-02 10:35:38,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 10:35:38,044 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:35:38,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:38,044 INFO L85 PathProgramCache]: Analyzing trace with hash 185112015, now seen corresponding path program 1 times [2024-12-02 10:35:38,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:38,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506406211] [2024-12-02 10:35:38,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:38,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:38,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:38,157 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 10:35:38,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:38,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506406211] [2024-12-02 10:35:38,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506406211] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:38,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:35:38,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:35:38,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509008178] [2024-12-02 10:35:38,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:38,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:35:38,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:38,158 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:35:38,159 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:35:38,159 INFO L87 Difference]: Start difference. First operand 72774 states and 112283 transitions. Second operand has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 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 10:35:38,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:38,681 INFO L93 Difference]: Finished difference Result 213044 states and 327946 transitions. [2024-12-02 10:35:38,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:35:38,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 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 318 [2024-12-02 10:35:38,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:38,771 INFO L225 Difference]: With dead ends: 213044 [2024-12-02 10:35:38,771 INFO L226 Difference]: Without dead ends: 141732 [2024-12-02 10:35:38,799 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 10:35:38,800 INFO L435 NwaCegarLoop]: 2350 mSDtfsCounter, 1064 mSDsluCounter, 1153 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1064 SdHoareTripleChecker+Valid, 3503 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 10:35:38,800 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1064 Valid, 3503 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:35:38,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141732 states. [2024-12-02 10:35:40,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141732 to 141730. [2024-12-02 10:35:40,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141730 states, 141729 states have (on average 1.5315990375999267) internal successors, (217072), 141729 states have internal predecessors, (217072), 0 states have call successors, (0), 0 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 10:35:40,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141730 states to 141730 states and 217072 transitions. [2024-12-02 10:35:40,772 INFO L78 Accepts]: Start accepts. Automaton has 141730 states and 217072 transitions. Word has length 318 [2024-12-02 10:35:40,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:40,772 INFO L471 AbstractCegarLoop]: Abstraction has 141730 states and 217072 transitions. [2024-12-02 10:35:40,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 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 10:35:40,772 INFO L276 IsEmpty]: Start isEmpty. Operand 141730 states and 217072 transitions. [2024-12-02 10:35:40,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2024-12-02 10:35:40,822 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:40,822 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] [2024-12-02 10:35:40,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 10:35:40,822 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:35:40,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:40,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1578405744, now seen corresponding path program 1 times [2024-12-02 10:35:40,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:40,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022947982] [2024-12-02 10:35:40,823 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:40,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:40,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:41,026 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 10:35:41,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:41,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022947982] [2024-12-02 10:35:41,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022947982] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:41,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:35:41,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:35:41,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057985385] [2024-12-02 10:35:41,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:41,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:35:41,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:41,028 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:35:41,028 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:35:41,029 INFO L87 Difference]: Start difference. First operand 141730 states and 217072 transitions. Second operand has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 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 10:35:42,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:42,135 INFO L93 Difference]: Finished difference Result 412844 states and 630443 transitions. [2024-12-02 10:35:42,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:35:42,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 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 319 [2024-12-02 10:35:42,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:42,346 INFO L225 Difference]: With dead ends: 412844 [2024-12-02 10:35:42,346 INFO L226 Difference]: Without dead ends: 275026 [2024-12-02 10:35:42,718 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 10:35:42,718 INFO L435 NwaCegarLoop]: 2134 mSDtfsCounter, 1078 mSDsluCounter, 1153 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1078 SdHoareTripleChecker+Valid, 3287 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 10:35:42,718 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1078 Valid, 3287 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:35:42,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275026 states. [2024-12-02 10:35:45,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275026 to 275024. [2024-12-02 10:35:45,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275024 states, 275023 states have (on average 1.518792973678565) internal successors, (417703), 275023 states have internal predecessors, (417703), 0 states have call successors, (0), 0 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 10:35:46,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275024 states to 275024 states and 417703 transitions. [2024-12-02 10:35:46,584 INFO L78 Accepts]: Start accepts. Automaton has 275024 states and 417703 transitions. Word has length 319 [2024-12-02 10:35:46,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:46,585 INFO L471 AbstractCegarLoop]: Abstraction has 275024 states and 417703 transitions. [2024-12-02 10:35:46,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 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 10:35:46,585 INFO L276 IsEmpty]: Start isEmpty. Operand 275024 states and 417703 transitions. [2024-12-02 10:35:46,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2024-12-02 10:35:46,669 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:46,669 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] [2024-12-02 10:35:46,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 10:35:46,669 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:35:46,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:46,670 INFO L85 PathProgramCache]: Analyzing trace with hash -647790859, now seen corresponding path program 1 times [2024-12-02 10:35:46,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:46,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195397877] [2024-12-02 10:35:46,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:46,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:46,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:47,525 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 10:35:47,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:47,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195397877] [2024-12-02 10:35:47,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195397877] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:47,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:35:47,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:35:47,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568532764] [2024-12-02 10:35:47,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:47,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:35:47,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:47,527 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:35:47,527 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:35:47,527 INFO L87 Difference]: Start difference. First operand 275024 states and 417703 transitions. Second operand has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 0 states have call successors, (0), 0 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 10:35:50,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:50,154 INFO L93 Difference]: Finished difference Result 1074215 states and 1627805 transitions. [2024-12-02 10:35:50,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:35:50,155 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 0 states have call successors, (0), 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 320 [2024-12-02 10:35:50,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:50,818 INFO L225 Difference]: With dead ends: 1074215 [2024-12-02 10:35:50,818 INFO L226 Difference]: Without dead ends: 800011 [2024-12-02 10:35:50,927 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 10:35:50,927 INFO L435 NwaCegarLoop]: 1818 mSDtfsCounter, 2661 mSDsluCounter, 2231 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2661 SdHoareTripleChecker+Valid, 4049 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:35:50,927 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2661 Valid, 4049 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:35:51,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800011 states. [2024-12-02 10:35:58,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800011 to 537653. [2024-12-02 10:35:58,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537653 states, 537652 states have (on average 1.5086635965271216) internal successors, (811136), 537652 states have internal predecessors, (811136), 0 states have call successors, (0), 0 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 10:36:00,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537653 states to 537653 states and 811136 transitions. [2024-12-02 10:36:00,051 INFO L78 Accepts]: Start accepts. Automaton has 537653 states and 811136 transitions. Word has length 320 [2024-12-02 10:36:00,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:00,051 INFO L471 AbstractCegarLoop]: Abstraction has 537653 states and 811136 transitions. [2024-12-02 10:36:00,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 0 states have call successors, (0), 0 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 10:36:00,051 INFO L276 IsEmpty]: Start isEmpty. Operand 537653 states and 811136 transitions. [2024-12-02 10:36:00,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2024-12-02 10:36:00,232 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:00,233 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] [2024-12-02 10:36:00,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 10:36:00,233 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:36:00,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:00,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1343438354, now seen corresponding path program 1 times [2024-12-02 10:36:00,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:00,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460779949] [2024-12-02 10:36:00,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:00,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:00,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:00,345 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 10:36:00,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:00,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460779949] [2024-12-02 10:36:00,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460779949] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:00,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:00,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:36:00,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025280464] [2024-12-02 10:36:00,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:00,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:36:00,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:00,347 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:36:00,347 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:36:00,347 INFO L87 Difference]: Start difference. First operand 537653 states and 811136 transitions. Second operand has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 0 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 10:36:04,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:04,237 INFO L93 Difference]: Finished difference Result 1586354 states and 2389059 transitions. [2024-12-02 10:36:04,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:36:04,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 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 322 [2024-12-02 10:36:04,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:05,156 INFO L225 Difference]: With dead ends: 1586354 [2024-12-02 10:36:05,156 INFO L226 Difference]: Without dead ends: 1051916 [2024-12-02 10:36:05,743 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 10:36:05,743 INFO L435 NwaCegarLoop]: 2326 mSDtfsCounter, 1055 mSDsluCounter, 1153 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1055 SdHoareTripleChecker+Valid, 3479 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:05,743 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1055 Valid, 3479 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:36:06,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1051916 states. [2024-12-02 10:36:16,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1051916 to 1051914. [2024-12-02 10:36:17,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1051914 states, 1051913 states have (on average 1.4983568032717534) internal successors, (1576141), 1051913 states have internal predecessors, (1576141), 0 states have call successors, (0), 0 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 10:36:20,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1051914 states to 1051914 states and 1576141 transitions. [2024-12-02 10:36:20,764 INFO L78 Accepts]: Start accepts. Automaton has 1051914 states and 1576141 transitions. Word has length 322 [2024-12-02 10:36:20,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:20,764 INFO L471 AbstractCegarLoop]: Abstraction has 1051914 states and 1576141 transitions. [2024-12-02 10:36:20,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 0 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 10:36:20,764 INFO L276 IsEmpty]: Start isEmpty. Operand 1051914 states and 1576141 transitions. [2024-12-02 10:36:21,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2024-12-02 10:36:21,205 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:21,206 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] [2024-12-02 10:36:21,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 10:36:21,206 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:36:21,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:21,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1245517545, now seen corresponding path program 1 times [2024-12-02 10:36:21,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:21,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976311315] [2024-12-02 10:36:21,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:21,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:21,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:21,363 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 10:36:21,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:21,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976311315] [2024-12-02 10:36:21,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976311315] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:21,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:21,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:36:21,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227616747] [2024-12-02 10:36:21,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:21,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:36:21,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:21,365 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:36:21,365 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:36:21,365 INFO L87 Difference]: Start difference. First operand 1051914 states and 1576141 transitions. Second operand has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 0 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 10:36:29,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:29,629 INFO L93 Difference]: Finished difference Result 3153330 states and 4724197 transitions. [2024-12-02 10:36:29,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:36:29,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 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 322 [2024-12-02 10:36:29,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:31,947 INFO L225 Difference]: With dead ends: 3153330 [2024-12-02 10:36:31,947 INFO L226 Difference]: Without dead ends: 2102636 [2024-12-02 10:36:32,200 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 10:36:32,200 INFO L435 NwaCegarLoop]: 2379 mSDtfsCounter, 1170 mSDsluCounter, 1204 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1170 SdHoareTripleChecker+Valid, 3583 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 10:36:32,200 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1170 Valid, 3583 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:36:33,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2102636 states.